5-Plus Secrets for Starting Seeds

It’s spring and time to think about growing food and flowers this summer. Save money when you start some seeds inside. You can find plenty of tips online for light, soil and water requirements, but I wanted to mention a few other hard-earned “secrets” from my experience and talking to others.

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In general, start seeds about six weeks before your planting time for the variety. And be sure to pot up (move the smaller seedling to a larger pot) once while seedlings are inside. Here are 5 other tips:

basil-tomato-seedlings-label
It’s fun to start seeds inside, but only start plants that transplant well.

1. Before starting vegetable or herb seeds, be sure they transplant well.

If they do better with direct sowing (placing the seed right in the ground), wait not just past your last freeze but until air (and therefore, soil) temperatures have warmed. Cucumbers are a great example. I have planted them too soon and then had to plant again when the ground warmed because the first ones just didn’t take. Many annual flower seeds and some herbs do fine with direct sowing, which is easier than starting small plants inside.

carrots-in-ground
Carrots like cooler weather than some crops.

2. Not all vegetable seeds or seedlings go into the ground at the same time.

Lettuces, cilantro and carrots do better in spring or early fall than in summer heat. Tomatoes need moderate heat.  Planting and harvest times vary for edibles. This also goes with my next tip:

3. Look for information specific to your region.

Seed packets can help, but in New Mexico and other Southwest states, dates for planting vary widely. This goes for last or first frost dates and for peak heat. Low desert areas, in particular, have growing seasons markedly different from the rest of the country. Check with local nurseries, extension offices or master gardeners for help knowing when to plant.

tomatoes in wall of water
These water towers warm the ground in my cooler region and help tomatoes adjust to the outdoors.

4. Thin seedlings.

This is the hardest lesson. But you should thin the seeds that sprout in your indoor start pots and those directly sown before they get too big and share roots. In the starter pot, it is best to take a small narrow pair of scissor or garden clippers and cut the spare seedlings off at the soil level. Pulling it up could damage all the seedlings in your pot. Thinning in the ground is a matter of preference for how your plants will look. But remember, crowded seedlings are not as healthy as single ones with plenty of room for their roots, and vegetable plants should not touch one another if possible. The leaves need sun and air flow.

green-beans-pole-fence
Green beans need room to spread, so remember their full size when sowing and thinning seeds.

5. Be sure to harden off seedlings.

This requires patience and some time. Your plants need to get used to their new home, just like flatlanders need to acclimate to high altitudes. Get your seed starts used to a breeze and the sun before placing them in the ground. Read more here about how to harden off your seed starts.

seed starts-in-tray-sun
This tray of seed starts got indoor sun, then gradual outdoor sun and breeze.

Plus:

Finally, start just enough for a spare or two in case a few seeds fail to take or the seedlings get off to a bad start. But don’t plant 10 tomato seeds indoors if you plan to grow only one or two plants, unless you have friends and family who would love to take your other healthy plants off your hands.

wildflowers-from-seed
These wildlfowers could have used more thinning, but I love the effect. You can’t plant tomatoes this close together, though.

Threadgrass: You Can Grow That

It sounds too good to be true: an ornamental grass that loves heat and looks beautiful all year gently swaying in the wind. But threadgrass (Nasella tennuissima) fits the bill — and is waterwise. This pretty low-water plant also is called silky thread grass or Mexican feather grass.

ladybug-on-threadgrass-flower-stalk
Can you spot the tightrope-walking lady bug on this threadgrass?

Texture and movement can add to a garden’s design nearly as much as shape and color. Threadgrass has a delicate, windswept form that serves as an attractive backdrop to low-growing flowering plants like sedums or verbena. In summer, the grass is a nice green with feathery ends. In winter, the airy flower heads take on a golden, wheat-like appearance. Threadgrass is deer resistant, has no known diseases or pests, and is a native plant that grows in zones 5 through 10.

Planting Threadgrass

Plant threadgrass in spring, summer or fall. Because it likes heat, you might be able to fill in a summer bare spot with threadgrass after weather is too hot for most garden plants. If you want a swaying meadow effect, you’ll need to plant a few, and then wait for them to reseed. If you want immediate effect, plant several. Just keep in mind the plant grows to about 12 inches wide.

threadgrass-two-plants-medium-sized
Young threadgrass plants that came up next to their mother plant.

Your threadgrass plants should reach about 18 to 24 inches high when fully grown, sometimes higher when blooming. Plant it in full sun and in most any kind of soil. When you first plant or transplant your threadgrass, give it a little extra water, especially in high heat.

bunches-ornamental-grass-shade
You also can bunch threadgrass for a meadow effect, like the grass in this Austin area garden.

Caring for Threadgrass

Once threadgrass is established, it should need nothing but rain water to grow and set seed. The plant is  a short-lived  perennial and should come back several years in a row, assuming typical low temperatures for the lower zones. It also reseeds (see below), creating new plants nearby. You can leave these to eventually replace the established ones, or dig them up and transplant them to another spot in your garden. They are easy to recognize.

threadgrass seedlings-dirt-near-large-plant
Tiny seedlings of threadgrass are easy to spot around other plants. Depending on where they show up and where you live, they are either free plants or invasive ones.

Each spring, as you begin pruning other plants in your garden, gently comb the grass blades with a fine rake and trim them for shape.

euphorbia-green-santolina-threadgrass
How perfect is the texture of the fine stems of threadgrass as part of this xeric plant grouping!

Caution for Some Gardeners

The fact that threadgrass replaces itself by sprouting tiny plants from seed is a bonus to me. We get just enough seedlings to move around our garden, without them being a problem. But in some areas, threadgrass can be invasive, reseeding in places where it interferes with other plants. In fact, the  plant is prohibited in California because it is so invasive there and can crowd out grasses native to coastal areas. It also can crowd out pasture grasses. We have had no problems with that, however, and have only seen the plants pop up near mature ones.

trees-grass-median
Ornamental grass like threadgrass is great for lining pathways.

Not sure yet? Check out the short video of the grass moving in the winter breeze I posted on Southwest Gardening Blog’s Instagram page.

Enjoy growing threadgrass and other ornamental grasses in your low-water garden!

you can grow that logo

 

 

For Valentine’s Day: 5 Plants With Red Flowers

native rose in bud vase

Roses are red for Valentine’s Day, but there are other plants, including houseplants, bulbs and a few xeric plants that make great Valentine’s Day gifts with their deep red blooms.

Here are my favorites:

Cherry Sage

cherry-sage-bush-in-bloom
Cherry sage, a salvia, is a drought-tolerant plant with bright red flowers.

This xeric salvia (Salvia gregii) is a garden stunner. Add one to your rock garden for all-season color in most regions of the Southwest (zones 6 through 10). Hot lips sage is a perfect plant for lovers with bright red and white blooms.

Poppy

red-poppies
Poppies are beautiful growing in the Southwest garden or pressed in a Valentine card!

Red or Iceland poppies are perfect flowers for pressing and can last a bit as a cut flower. Papaver rhoeas (Red or Shirley Poppy) is a gorgeous complement to other flowers in the garden or planted in a bunch for a bright red meadow.

Geranium

red-geranium-blooms-leaves
Geranium comes in deep shades or red or bright pink and coral.

Geraniums come with deep maroon red, fire engine red or pink flowers. Plant a red geranium and a white geranium in a container for your Valentine. These plants can stay outside in spring or summer in most areas of the Southwest will continue to bloom inside in winter if left in a sunny window. I like to cut the bloom stalk near where the flowers begin and float it in a clear glass container filled with water.

African Violet

red-african-violet-flower-leaves
Tomahawk is a hybrid of the late Kent Stork. The flower is such a deep, rich red.

If the symmetrical rosettes of leaves topped by pretty flowers are not enough (and they should be) to brighten any home or heart, the plant names might do the trick. There are thousands of varieties of African violets hybridized by pros and amateurs with fun registered names. Hybridizers name the violets after loved ones, hobbies and the plant characteristics. There are plenty of varieties with pink and reddish flowers (not just purple ones) .

Amaryllis

amaryllis-blossom-red
The giant, red flower of a holiday Amaryllis.

Many varieties of the winter-blooming bulb come in solid red or white with red or coral streaks. Although most are raised to bloom around the holidays, they can bloom later if dormant and dark for a while, or have a second bloom. I have one that bloomed like crazy in December but has another bud coming up that likely will open just after Valentine’s Day.

red-gladiola-bloom
Gladiolas have gorgeous flowers up and down a strong stem.

Although cut flowers are nice, a plant that can grow on in your garden or home makes a perfect gift for your Valentine. Tulips open outdoors in early spring, and even Claret cup cacti have gorgeous red blooms. My all-time favorite cutting flower is the gladiola and a nice guilty pleasure in an otherwise low-water garden (and protected from munching deer). Or try giving your loved one an anthurium, the tropical plant with a red heart-shaped flower!

5 Reasons Succulents Make Great Gifts

Not sure what to give a loved one, friend or co-worker as a holiday gift? You can’t beat succulents. Here are five reasons why:

1. Easy care, even for brown thumbs.

 

Although succulents can die, they are easier to care for than most plants. You can kill them only with kindness (too much water). And even leaves of heat-loving succulents can burn in direct sun. But they make great gifts for people who want a little green but have less than green thumbs. Keep it simple with common succulents like Echevaria or Sempervivum. Both plants come in pretty rosette shapes.

echevaria-sempervivum-in-small-clay-pots
Many succulents have pretty rosette shapes.

2. Succulents make people smile.

Partly because they’re easy, and maybe because of their fleshy, healthy-looking leaves or pads, these plants bring a touch of natural, living matter to the dullest setting. You can find popular ways of displaying succulents as décor. And if the recipient likes to live on the edge, a nice spiny cactus is a fun gift that could be the gateway to growing more houseplants.

guitar-made-of-succulents-on-wall
Succulent Love on display at Austin’s Articulture

3. Succulents grow in lots of container types.

A few weeks ago, I posted about growing cacti in containers. Succulents are so easy to plant in natural, pretty or quirky containers. Small ones can grow in tiny holes of rocks or driftwood. Air plants are even easier to grow in unique containers, since they require no soil.

succulents-in-white-containers
I love these white geometric succulent containers on a patio table in an Austin garden.

4. Adding a personal touch is easy.

So, maybe the succulent you choose for a gift isn’t so unique, but you plant it in a coffee cup with a message, or a souvenir that has sentimental value. You can use your sense of humor or a little romance when choosing how to present a small succulent – or several. Or select one based on the name (maybe String of Pearls?) You also can make your gift more personal with a small set of instructions on how to care for the plant. You can look for information online or write up how you take care of succulents.

succulent-in-metal-container
An old metal container with sentimental value holds this succulent.

5. They’re popular and available.

The trend in succulent plantings, arrangements and decoration on all sorts of materials might not last forever. But while it does, it is easy to find a great selection of succulents for gift-giving.

succulents on nursery shelf
Your local nursery greenhouse is sure to be loaded with lots of succulent choices.

Here are some favorite small succulents:

Echevaria, several varieties

Sempervivum (such as hens and chicks)

Sedum morganianum (Burro’s tail)

Euphorbia milii (Crown of Thorns) and it is thorny!

Crassula ovata (Jade plant)

Mamillaria crinita (Pincushion cactus)

Haworthia fasciata (Zebra plant)

haworthia-foliage
Harowthia is such a fun succulent, and it can send up a stem with yellow flowers.

Zwartkop (Aenonium arboretum)

Also, Tillandsias (airplants) come in lots of types and colors.

 

Grow—or Give—Container Cacti

old-man-cactus-houseplants-indoor-sun

Succulents, and especially cactus plants, usually prefer heat and drought. That’s one reason they make such perfect plants for desert gardens. But in the high deserts or mountains of New Mexico and other Southwestern states, many cacti only can live outdoors in the summer. Enter containers…

cacti in fun containers bishop cap
These little cacti get great winter sun on a south-facing wall. They only travel outdoors in the warmest months. Two of these containers are thrift store finds.

Why Plant Cacti in Containers?

The best reason for planting cacti in containers is the flexibility it offers. You can move the plant throughout the year (carefully) to bring it outdoors when summer nights warm and indoors as frost approaches. But you also can move your cacti around to control temperature or sun exposure. Even succulents can burn from intense sun, so it is good to keep an eye on the plants and rotate or move them depending on sun, including sun from a south- or west-facing windows.

cacti and succulents in containers on shelf outdoor with shade fabric
Cacti and succulents sunning outside, but with a shade cloth during intense sunshine.

Another reason to plant cacti in containers is to isolate watering. When planted outside, especially near drip or other watering systems, cacti can get too much water. With containers, you can control cactus watering based on season and when the plant goes dormant. If you love the look of a cactus in your desert landscape, nothing says it has to be in the ground! If the water or temperature conditions are not ideal, place your cactus outside in a colorful container. Just remember – the outdoor container should have good drainage and can cool off more at night, so don’t leave a container cactus outdoors in winter unless it is hardy to at least 10 degrees cooler than your lowest low.

old man cactus in container, grass, rosemary
Here’s that old man cactus in the first photo, outside on the xeric garden wall in summer.

Finally, most cacti are slow growers, so you don’t’ have to repot them often. Other cacti spread out of control in the garden. You’ve probably seen a xeric yard in your neighborhood with prickly pear growing like a sprawling hedge, maybe onto the sidewalk. It is easier to control cacti when in the confines of a container.

Container Cactus Mix

Planting and caring for cacti in containers is easy, but the soil mix is crucial to success. If you plant a cactus in standard container potting mix, which is designed to help retain water, your cactus roots will get soggy and rot. You can buy special cactus mixes or make your own. Ask friends or local experts for ideas. Examples include adding 1 part coarse sand and 5 parts perlite (for airflow and drainage) to 4 parts of potting mix. Vermiculite also improves aeration but holds too much water. You also can add a little bit of rock dust or pumice to your mix.

spiny cactus in metal container
Handle container-planted cacti carefully, although the spines didn’t stop this wild daisy from seeding in the container.

Handle your cactus carefully while transplanting. You can use an old sock or towel to wrap around the plant near the base and lift it out of the pot. Or turn the pot with the cactus on its side, resting the plant on an old pillow (that you won’t use again) to cushion the plant while you pull the container off the root ball.

Old long-handled barbecue tongs are great tools for holding a cactus while you place it in its new container; or use regular tongs for smaller plants. The eraser side of a pencil works great for gently pressing soil down around smaller cacti.

tall columnar euphorbia in container
This columnar euphorbia (a succulent, but not a cactus) now only moves arouond inside. It is too tough to take out to the yard now.

Some Favorite Container Cacti

Some of these cacti are spinier than others, so you might want to be careful where you place them. Many will flower, especially in spring or early summer. And some can tolerate pretty cold temperatures, but still would be fun winter houseplants.

Barrel cactus (Echinocactus grusonii). The golden barrel and other barrel cacti are such great landscape plants, giving a pretty round shape to landscape designs. I especially love them on hills. But they’re only hardy to 15 to 17 degrees, so we keep ours in a container.

pencil cholla and golden barrel cactus in containers.
Pencil cholla on left and barrel cactus on right, wintering over in a sunny spot.

Pencil cholla (Cylindropuntia leptocaulis). Pencil cholla are pretty scary looking, with spines up to one inch long sticking out from tall, thin branches. They are hardy to -20 degrees and love heat, but spread easily in the yard.

Bishops cap (Astrophytum myriostigma). This is an attractive and slow-growing cactus perfect for a container, especially since it only can handle cold down to 20 degrees. I love the sort of grainy white and green look of the plant. See the second photo above. That is a bishops cap in the middle.

rounded cacti in round container
I love this circular arrangement of cacti in a shallow container.

Hedgehog cacti (Echinocereus). It’s native to the U.S. and Engelmanns hedgehog is most common throughout the Southwest. It’s spiny, but should produce bright pink flowers more than two inches across. The plant only reaches about 10 inches in height.

Fence post (Pachycereus maginatus). This is a columnar, almost regal cactus. The columns have ridges with small spines and when planted in a row, they form an excellent wall. Columnar cacti are great choices for planting in containers of homes with high ceilings or to simply provide height behind a grouping of houseplants. They just need plenty of filtered sun.

cactus and ocotillo in outdoor container
I love this vertical planting with ocotillo we spotted at the Arizona-Sonora Desert Museum in Tucson.

Ocotillo (Fouquieria splendens). It’s hard to imagine this sprawling cactus in a container, but it can be done. It will need summer heat and can survive temperatures down to 20 below freezing. So, the garden can work, but you can control ocotillo growth in a container and enjoy it as a rising backdrop to other cacti or succulents.

Old man cactus (Cephalocereus senilis). This is by far one of my favorite cacti. But it needs to stay in temperatures above 46 degrees, despite its shaggy layer of “hair.” This is another slow grower, and often a conversation starter in a home!

Spineless prickly pear (Opuntia canacapa). For the look of a gorgeous green and juicy cactus pad and no spines, go with this pretty plant. It still will grow new pads, but you can cut them off or plant them elsewhere. Both regular and hardy prickly pears can survive temperatures down to zero.

clay pot with several vertical cacti outside on patio
Cactus containers on a patio in an Austin, Texas, garden.

 

 

It’s Getting Cold Out, So Garden Indoors

The leaves are falling, but you don’t have to sink into winter doldrums. You can keep up your green thumb and all the joy you get from growing with indoor plants. All that greenery inside your house is much more cheerful than the brown landscape and bare trees outside. So fill your home with green and flowers.

geranium and houseplants on table.
Fall is the time to bring geraniums, succulents and other houseplants indoors — and then find a spot for them!

Here are a few ideas on how to extend the season and ease into winter slowly.

Adjust houseplant conditions

Even houseplants that live indoors all year might need some winter preparation. This includes cutting back on watering and fertilizing and cleaning leaves to allow as much light as possible to reach the plant. Because winter days are shorter, and the sun in the northern hemisphere is lower, you might have to move plants to different windows or supplement their light with grow lights. And be sure not to overwater houseplants in winter. Most need a break to rest, and only need water when the soil dries out.

succulent arrangement
These succulents spend winter indoors near a warm wall and sunny window. We can move them around as the sun moves up or down in the southern sky.

Move container plants inside

We move inside any plant we love and think can make it at least a few months inside. It helps if it is not too heavy to move. This includes many succulents that can’t take low temperatures, geraniums, and plants that tolerate shade. We had a gorgeous coleus container we brought inside one year. It got leggy, but we were able to enjoy it for a few months more than if we had discarded it.

barrel cactus and aloe in containers
Most of our succulents can’t handle the cold winter lows in zone 6B, so they come inside for winter.

Harvest or grow edibles

Pick green tomatoes if still viable on the vine and let them ripen indoors, fry them up or make a tomato sauce starter. Making pesto is fun, but you also can cut basil branches and place in a jar of water for extended life. If canning is your thing, it feels good to prep for winter by preserving fruits and vegetables. When you miss your summer garden, visit the dark cool area where the jars of your preserved crops are stored. You can grow sprouts in glass jars to “summer up” sandwiches and salads.

herb garden vertical
This sunny room in my daughter’s house is perfect for houseplants and herbs.
chives and basil in window
You can extend the season for some herbs inside. Or look for lights and systems that help you grow herbs and microgreens all year.

Take cuttings of favorite plants

That coleus that got too big and lanky? We could have rooted new coleus plants from cuttings instead of bringing the mature plant inside. There’s a fun indoor project! In fact, try taking cuttings of favorite plants and starting them indoors. Not all plants are easy to propagate, but with some practice, you can start your own plants for the next spring.

Succulents often bloom in winter and early spring, adding color to your indoor gardens.

Buy a new houseplant

African violets can bloom almost continuously if they receive enough sun and consistent, light moisture and repotting as needed. There are thousands of varieties with different bloom colors and styles and variegated leaves. Many succulents bloom in winter (such as Christmas cactus) or in spring, when you’re really itching to get outside and grow. Both succulents and African violets also are easy to grow from leaf cuttings, though the technique is very different for each.

violet succulent
African violets and succulents are easy to start from cuttings.

Guilty Pleasures of a Xeric Gardener

When water is as scarce as it always seems to be in New Mexico, especially this year, I appreciate all of the native and drought-tolerant plants that hang in there until rains finally arrive. After all, it’s the smart and right thing to do here in the Southwest: grow plants that need little to no watering from our wells and taps.

prickly-poppy-bloom-shite
This white prickly poppy is plenty xeric, but the gorgeous blooms fade quickly.

And we follow those principles, doing what we can to save water. Still, I love some plants too much to give them up completely, and I imagine that’s true of many people who move to our dry state. I would hate for any gardener to feel badly for having a few guilty pleasures from the plant world. Here are some strategies for finding the middle ground between gardening sustainably and growing plants you love.

dahlia-bloom-red-yellow-center
Dahlias need deep watering once they emerge, but I had to add a few to an empty spot in our rock garden.

Plant high-water users only as occasional fillers and in moderation. By high-water plant, I mean not xeric, or needing some supplemental watering. If a plant doesn’t meet the soil, sun exposure and watering requirements, you’re unlikely to have much success and will have to resort to photographs from botanical gardens!

native-rose-bloom-pink
Roses evoke lots of passion in growers. Most of ours are natives like this one, but I have a few hybrids just because.

Fill in color with a few annuals. I fill a few patio containers each year with an annual or two or pop a few annuals between xeric plants that flower for only part of the season.

white-gazania-red-petunia-container
Petunias are so easy to grow and spread throughout summer. And gazanias are among my favorite flowers but can’t withstand our winters. So I mixed them in a container.

Grow a few houseplants you love. Geraniums are a favorite of mine, and I don’t have to give them much water in the winter while they survive inside near a sunny window. My new guilty pleasure is violets, although they stay inside all year. Growing orchids, violets and other houseplants more suited to tropical climates can be a guilty pleasure without adding much to water usage. Of course, that’s assuming you stick to a few plants only … if you can.

coral-geranium-cosmos-flowers-background
Geraniums add color to our patio and continue blooming for a month or more once brought inside.
African violet-pink
This is a new African violet kindly given to me. The lush leaves are a marked contrast to those of our xeric plants outside.

Create conditions that help the plant survive with less water. Use mulch, shading or other exposure strategies and careful timing with monsoon rain to help a nonxeric plant make it through hot, dry periods. And accept that your plant might not bloom as much as it would in a wetter climate by enjoying the blooms you get.

double-wave-petunia-bloom-pink-white
I can move this gorgeous Double Wave Petunia in a container around until the sun exposure was just right.

Choose plants you love that are useful to “waste” less water. If you’re growing food for your family (and not wasting lots of harvest), you’re replacing some of the water that might have been used to grow the same food on a large farm, and doing so locally. Plus, the benefits outweigh a little bump in water use and cost. Or grow some cut flowers you love instead of buying them in a store for your home or family and friends. Finally, some flowering plants that require a little more water provide food for hummingbirds, bees and butterflies. Although natives are better, adding a few flowering plants not native to your area can help pollinators.

red-gladiola-bloom-in-vegetable-garden
We planted gladiolas in a large container right in the middle of our vegetable garden for color and protection from deer.
zinnia-blooms-butterfly
Zinnias attract lots of pollinators to our vegetable garden to help us grow food.

And finally — use rain barrels to water your lovelies during dry weeks.

Santolina: You Can Grow That!

gray-santolina-yellow-blooms
The bright yellow blooms and silvery foliage of gray santollina.

Santolina is an herb said to be used in folk medicine to make a tea that expelled intestinal worms or was used as an eye wash. The plant repels insects, and placing leaves in sachets is said to repel moths.

We grow santolina (also known as lavender cotton) in our rock garden for its evergreen appearance, yellow button-like flowers and drought tolerance. It’s not native to North America, but does very well in our dry Southwest soil.

gray-santolina-foliage
The silvery-green, almost lacy foliage of gray santolina up close.

Gray santolina (Santolina chamaecyparissus) produces bright yellow flowers in summer. The plant has few matches for attractive gray-green foliage and its ability to spread as a groundcover. Our large one has been a cover for a litter of cottontails and is now spreading slowly over a rock wall.

gray-santolina-pruned-rock-garden
New growth on a gray santolina (right after spring pruning) cascading down a rock wall.

Another variety, green santolina (S. virens or S. rosmarinifolia) has lemon-colored button flowers that contrast with its deeper green foliage. Both types of santolina have an aroma, and some people find the bloom aroma offensive. Most varieties of the shrubby groundcover grow in zones 5 through 9 and need only moderate water. Learn more about santolina varieties from Cornell University.

lemon-colored-blooms-green-santolina
I love the lemondrop look of the green santolina flowers.

Caring for Santolina Plants

The plants prefer full sun, but our largest santolina blooms each summer even though it now gets lots of afternoon shade from a nearby tree. Place the plant in well-draining soil. When temperatures reach 90 degrees, water your santolina every few weeks if you get no rain. Otherwise, it needs water only monthly or less.

green-santolina-before-gopher-spurge
Even before blooming, green santolina is a nice companion for the light green foliage of gopher spurge.

Prune (really, shear) santolina shrubs in early spring to shape and remove dead flower stems. Every two to three years, give the plant a harder prune down to about 6 inches above the ground to keep the plant from getting leggy. You also can sheer dying flower stalks after the first bloom for the chance of a second summer flowering.

green-santolina-not-pruned-enough
I did not prune this plant low enough a few years ago, and it is a little leggy and less rounded. Still, it has an attractive, natural shape.

The plant is evergreen or semi-evergreen in some climates. Santolina does best with no fertilizing. How easy is that? And you can take cuttings or divide larger portions of the plant in fall, although the transplants might succumb to cold, so if you can warm them the first winter, even better.

Whether you grow santolina for its herbal properties or appearance, you can grow that!

 

5 Easy Plants for Xeric Gardens

Xeric plants are smart, easy-care choices simply because they need little watering once established. Still, I’m sure some people avoid trying new plants, or opt for mostly gravel, to lessen time needed caring for ornamental plants.

desert-zinnia-chimenea-pot-with-lobelia
Desert zinnia adorns this low-water rock garden.

I’ve got five great options for Southwest gardeners, each hardy in our zone 6B garden and during summer heat. Although all are not technically xeric, they can thrive with little to no watering other than rain. Mostly, these plants need very little care, so try something new this year!

Yarrow

moonshine-yarrow-blooms-leaves
Moonshine yarrow is easy to care for, transplant and grow in low-water gardens.

Yarrow (Achillea sp). Yarrow is an herb, and a close relative of chamomile. Yarrow is said to aid digestion or heal wounds when applied as a pulp. Take a look at the scientific name (ever heard of Achilles and his heel?) and you can see how many years people have used yarrow for medicinal purposes. Achilles is said to have applied yarrow tinctures to heal and prevent wounds.

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Here’s a closer look at yarrow blooms. Pollinators love them as landing pads.

I grow yarrow because it’s pretty, attracts pollinators, and is one of the easiest perennials to maintain. Technically, yarrow needs a little more water than other low-water plants when summer temperatures hover at 90 degrees and higher, but our plants have made it through many seasons with one spring watering and natural rain after that. They’re hardy in zones 5 through 8. You can cut the spent blooms off to encourage more flowering. But for easy care, leave them on the plant, especially in cooler regions. or cut them back all at once for a second bloom in warmer climates. When trimming, you’ll probably see some tiny flowers close to the leaves that should shoot up and open. We’ve transplanted several yarrow plants with no trouble.

Ornamental Grasses

In windy areas, ornamental grasses stun in the garden. We often place them as single plants in a grouping of others, but I love the look of a row or grouping of the same grass in the landscape. Even those that aren’t native tend to need less water than some plants, since they don’t truly flower, but can produce lovely stalks topped with seeds. And you can mix textures, colors and heights for landscape interest. There are so many choices!

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Karl Foerster Feather Reed Grass (Calamagrostis acutiflora Karl Foerster) in our dry river bed in midsummer.

Even those grasses that aren’t native need little care and use little water. A few (like Silky threadgrass) can spread, but you only need to pull or dig up the tiny starts in early spring to control where they grow. We like to add one annual such as Purple Fountain Grass (Pennisetum secateum ‘Rubrum’) each year for color pop, but our other grasses make it through winter.

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The flower stalks of Purple Fountain Grass.

Just check to see average zones. For example, the Purple Fountain Grass can overwinter in zones 8 through 11. And ask whether your favorite is a warm-season or cool-season grass; that helps you know when to plant it and whether it will survive winter or need a little shade in the heat of summer. All you have to do is shear back the foliage each spring as the grass begins to green at the base. So, so easy.

Prairie Zinnia

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Prairie or desert zinnia spreads easily in sunny, dry locations.

Prairie or desert zinnia (Zinnia grandiflora), is an easy and attractive groundcover with sunny yellow flowers that grows in zones 4 through 9. The plant is native to New Mexico, Arizona and parts of southern Colorado, so it’s hardy in Southwestern soils and survives drought. Ours were already in our garden, and I have heard that the plant can be a little challenging to get started. My guess is excited gardeners plant the zinnias too soon, before soils have warmed. Ours cascade down a rock wall, coming up each year in little soil, but plenty of warmth from the rocks. The rocky soil also drains well, which likely helps keep the plants healthy and spreading at just the right rate (not invasive). The foliage browns in winter, but is so small it doesn’t look messy. All I do each year is put on my gloves and gently pull away the dead foliage when I see it greening up at the bottom. Once you do that, the plants get the sun they need and begin growing and flowering.

Gopher Spurge

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The foliage stalks of gopher spurge are attractive all year long.

Gopher spurges (Euphorbia rigida) are among few plants that handle extreme cold (down to -20 degrees) and the high heat of zone 11. The plant is called gopher spurge because it has been said to repeal gophers, but I’m not sure there is any proof of that, or anything at all that truly repels the underground destroyers. I can say that ours have survived, save some deer chomping. The stalks that were eaten succumbed to cold, but I just cut them off at the base of the plant.

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Gopher spurge blooms early in our zone 6B xeric garden. This is in March.

Otherwise, our gopher spurge has grown nearly a foot in one year and was among the earliest flowering plants in our spring garden. We also have a Euphorbia ‘Ascot Rainbow’ we bought locally last year, and the foliage alone is beautiful. This newer plant also has survived winter and is beginning to bud out. All you have to do is cut off stems after the seeds ripen; new stalks will come up and you can enjoy the silver-green or colorful rainbow foliage all year. Gopher spurge and many other Euphorbias are succulents, so they’re lovers of sun, heat and low water.

Coreopsis

It’s the year of the Coreopsis! And I’m so glad. The native flowering plant is so versatile. It looks beautiful in rock gardens or more formal landscapes. Just place coreopsis in well-draining soil and most perennial varieties should be hardy from zones 4 through 9. Sometimes called tickseed, coreopsis comes in several varieties and deer seem to ignore the plants. Because the native plants tend to come  up along ditch banks or other disturbed areas they tend to easily grow in any Southwest garden conditions. The bright yellow blooms of Lanceleaf and Grandiflora coreopsis are common, and breeders have grown new varieties of Coreopsis with color variations.

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Tickseed (Coreopsis lanceolata Sterntaler) blooms all summer with a little deadheading or shearing.

Deadheading flowers as they dry up will keep them blooming, but if you find deadheading takes too much time, wait until a good flush of blooms has begun to die back and shear the flower stalks off all at once; you should get more blooms.

Favorite Flower: Nigella

I just discovered this delicate, early bloomer in the past few years when friends suggested Love-in-a-Mist (Nigella damascene) seeds from our local iris farm. The foliage looks much like fennel or dill as seedlings sprout, and nigella also is called fennel flower.

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Love in a mist grows from between rocks bordering our xeric garden.

Nigella Is Versatile

We grew multicolored love in a mist in our rock garden. Tim threw the seeds out in fall and by mid-spring, we had fine fern-like leaves popping up from between the rocks. Although Nigella does best in damp sandy soil, ours grew out from under rocks that make up the walls of our xeric garden. The rocks likely held moisture longer than a spot in the open might have. The rocks also trapped the tiny seeds so fewer blew away. Plus, nigella can tolerate dry conditions.

Nigella in rocks at steps in garden.
Here are the same flowers from a wider angle — in the corner to the right of the potted geranium.

But then we tried another approach – we bought a packet of Bridal Veil (Heirloom White Nigella) seeds from Renee’s Garden and sowed them in early summer in a blank spot of our vegetable garden. This soil is far better in quality, and the seeds received consistent drip watering. The flowers were taller and stunningly white, with maroon to black centers. The plants reproduce from seeds, assuming some seedheads are left on plants at the end of the season.

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These heirloom bridal veil flowers thrived in our vegetable garden and the contrast of colors is gorgeous and fun.

Sow in Fall or Spring

Although most instructions for growing nigella say to sow in spring, you can sow them in fall in areas with mild winters. They need full sun and grow in zones 2 through 10. That worked well for us last year, but this winter has been dry and consistently colder, so I’m anxious to see how many reseeded in our gardens. The bridal veil flowers in our vegetable garden bloomed later in the year, but were planted later. Sowing the seeds a few weeks apart in spring and fall can help ensure constant blooming of nigella in summer.

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The many colors of love in a mist add interest to the garden or flower arrangements.

Use as a Cut Flower

You can cut nigella blooms for flower arrangements, and even better, cut some of the seedheads. If you cut the flowers to enjoy indoors, leave a few blossoms on the plant so they can dry and drop seeds for the next year. If you get too many, thin them out while small. Enjoy the seedheads after flowering by cutting their stems just after flowers fade, and hang them upside down away from direct sun.

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Nigella seedhead after blooming alongside remaining white flower.

Nigella is easy to grow and a great addition to any xeric garden!

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A nigella seedpod. I can’t wait to try drying some of these this summer.