Although humans may enjoy snuggling under a puffy, down-filled comforter during frigid weather, our shrubs, perennials and bulbs prefer a 3-inch layer of organic mulch or shredded cedar during cold AND hot weather. During those hot, dry spells of summer, shredded cedar blankets the root zones of our plantings, helping retain moisture within the root zone and keeping our sun’s rays from drying soil surfaces.
During winter months, this blanket of shredded cedar/organic mulch is not intended to keep our plants WARM! Truly, its function is keeping the root zone COLD. Of course, a thick blanket of snow is also beneficial in maintaining cold temps within the root zone. However, some winters (like the one we’re experiencing in 2012) don’t provide snow insulation for shrubs, perennials and other plantings.
If the sun’s rays accumulate on soil surfaces (or heat reflects off brick or siding surfaces of your home), plants will break dormancy too quickly. Bulbs or perennials which emerge too early in spring are vulnerable to frost/snow/ice damage.
The daffodils in my home garden which had emerged by FEB 1st are at risk. The solution: add organic mulch.
A 3-inch layer of shredded cedar/organic mulch should be adequate to keep bulbs and roots protected from sunshine and freeze-thaw cycles. Shredded cedar can be purchased in bulk or in bags, depending upon your preference. Mulch is inexpensive insurance to keep your plants insulated and protected from a variety of weather conditions.
M. Lynn Schmid - Certified Master Gardener, A.A.S. Landscape/Horticulture/Arboriculture
So pleased Lammscapes now offers a blog for their current clients and customers, and for other Lammscapes "fans." It's always helpful to share useful plant knowledge with one another. Thanks!
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