Growing in containers gives you flexibility; you can move plants around based on shade and sun exposure or bring some inside for winter. There are plenty of reasons to have lots of fun or decorative containers (or an entire row of them!) Here are 5 great low-water choices and a few tips for growing succulents and other xeric plants in containers.
Pot these upright succulents when you have limited space or your winter low prohibits growing them in the ground. Some agaves become quite large, but probably will grow a little slower in a pot. Try those smaller than about a foot in diameter (basketball-sized at maturity) such as black-spined, artichoke and Queen Victoria for great container-scale plants. The rosette shape of most agaves makes them perfect as the only plant in a container. Line the top of the soil with decorative rocks or glass and your container design is done! Agaves withstand heat and drought, and some can take cold (such as A. parryi). Most, however, can only handle light freezes.
My favorite versatile herb can grow well in containers. Depending on the look you want, select an upright (bush) type to add height to a mix of xeric container plants or choose a trailing rosemary to drape over the side. Either one should bloom at some point during the growing season. You can move your container rosemary inside to a sunny window or leave outside against a warm south-facing wall for year-round access to the tasty herb. Some varieties can survive winters down to zone 5 or 6, but most do best in warmer climates. And remember, that container cools off faster than the ground.
Portulaca plants are idea for containers, especially for adding texture, draping shape and outstanding color. I love filling containers with portulaca, but also love placing them beneath a tall plant in a container to add interest. They grow best in dry, well-draining soil in full sun. Portulaca plants are annuals, but always available in Southwest nurseries. They spread so quickly and bloom so heavily that they are well worth the money. Choose from bloom colors in reds, oranges, yellows, whites and pink. They often drop tiny seeds that will show up as volunteers the next year, which can be fun. Or you can easily pull up the shallow roots.
These gorgeous plants make great low-growing borders, hedges or potted plants, depending on your climate. Potted lantanas drape over the side, adding shape and dimensions to container arrangements. I love the salmon-pink and lemon-yellow bloom arrangements. Some varieties grow large, but look for dwarf varieties such as Pinkie or Patriot. In the low desert (zones 9 through 11), lantana plants can be outside all year. In high deserts of New Mexico, Arizona and Colorado, we have to grow them as annuals or bring them inside when temperatures dip to about 55 degrees.
Containers dry out faster than the ground, making xeric plants, and especially succulents, the perfect container plants. Succulents need well-draining soil, so look for mixes that don’t retain too much water. Once you get the right soil mix, you should be able to water your succulents lightly once a week and have plenty of success. Most also grow slowly, so they don’t require frequent repotting. Some of my favorites are jade, echeveria, sempervivum, haworthia and crown of thorns.
A few tips for growing xeric plants in containers:
- Make sure you have well-draining soil so the roots do not stay too wet.
- Likewise, provide drainage at the bottom of the container.
- Water slowly and lightly when possible to avoid washing out soil and nutrients.
- Most xeric container plants need lots of sun, but keep an eye out for too much sun, especially when moving a plant back outdoors for the summer or placing it inside too close to a window.
- Try to keep xeric plants together in arrangements, since they have similar watering needs. Or if mixing, find a way to separate low-water plants by potting within the larger pot or ensuring water drains away from them.
- Overwatering leads to the demise of more xeric plants, especially container succulents, than other issues.