|Rudbeckia, photo by Donna Duffy|
|Diascia integerrima, Coral Canyon Twinspur, photo by Donna Duffy|
Watering at least monthly under dry winter conditions recharges the soil profile with moisture critical to plant survival. Whether you removed dead foliage in the fall or are waiting until spring, mulches provide the best protection for your perennials. Many types of mulches are available, and no matter which you choose, there are a few guidelines you should follow.
Mulches do a better job of insulating plants when space is allowed for air to circulate. Mulch that packs down to a dense mass during winter can cause mildews and molds to form. Shredded leaves from deciduous trees and pine boughs from discarded Christmas trees offer great winter protection. A good organic compost used as mulch is also effective and can be used as a soil amendment in the spring.
Established perennials and bulbs benefit from mulches that are applied after the ground freezes, because mulches don't allow soil temperatures to fluctuate as much throughout the winter. Check your mulch throughout the winter months to make sure it hasn’t blown away and exposed bare ground. In the spring, don’t be in a hurry to remove mulch or the plants will begin to grow too early.
|Perennials thriving after winter's freeze, photo by Donna Duffy|