Rocky Mountains. “Transplant or divide crowded perennials when new growth emerges,” suggests Colorado landscape designer Jocelyn Chilvers. “Summer and fall bloomers like asters, hummingbird flower (Zauschneria spp), Maximillian sunflower (Helianthus maximiliana), gayfeather (Liatris spp), tall garden phlox (Phlox paniculata), coneflower (Echinacea spp) and ornamental grasses may need attention.” Ger her Rocky Mountains April checklist
by Benjamin Vogt / Monarch Gardens Benjamin Vogt / Monarch Gardens Central Plains. “Resist the urge to prune spring-blooming shrubs, like viburnum, dogwood and spiraea, since they bloom on old growth and not new,” says Nebraska garden consultant Benjamin Vogt. “Once they’re done blooming and setting fruit, you can prune if you need to.” Get his Central Plains April checklist
Mulch. A 3-inch layer of mulch around all plantings will maintain soil moisture and deter weeds. In Texas use a Texas native hardwood mulch, which is shredded and resists moving during a hard rain. Mulches such as bark chips or nuggets have a tendency to wash away, leaving the soil bare and creating a maintenance issue.
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