The weather is cool and plants are going dormant, but there still is plenty homeowners can do to improve water saving and plant health for spring. It will keep you in the water-wise frame of mind and cut down on spring chores.
First, if you have automatic sprinklers or drip systems, be sure to adjust them for your plant’s new winter watering needs. I used to lose it when I would see my neighbors’ lawn sprinklers running full force on a windy and frosty November morning, partly because I nearly froze getting into my car, but mostly because of the wasted water. Watering plants too heavily in fall weather can soften them and make them more vulnerable to frost damage. And if you continue to water them too much in late winter or too soon in early spring so that they leaf out, they’re more vulnerable to late frost damage.
Another good fall project is to mulch around plants. Some xeric plants do better without mulching, but those that need a little more water can benefit from mulches that help retain the moisture. Mulching now also protects more sensitive plants from potential frost.
Well or shore up plants. Leaving a shallow depression, or tiny well, around low-water plants helps hold moisture in, especially right after they’re planted. If you have some trees and ornamentals that already are established, you can shore up some of the water by building up a ridge of soil around the plant’s base. This is particularly helpful for plants on grades to help prevent water from running off the plant instead of soaking in.
If you’re really feeling industrious, start planning for spring by planning or setting up a water harvesting system. It might be as simple as diverting roof water into a flower bed against the home’s foundation or so that it runs through a dry-river bed (an assortment of rocks and gravel made to look like a river) that leads to a favorite tree. Or plan a new xeric layout for your yard.