There are a number of shrubs or perennials that simply don't leaf out as early as everything else in your yard. Many plants stay in dormancy a little longer when spring arrives, some of these perennials and shrubs include:
-Hibiscus - Rose of Sharon
-Hydrangea Paniculata - Hydrangea
-Hydrangea macrophylla - Hydrangea
-Buddleia - Butterfly Bush
-Logerstroemia - Carpemyrtle
-Cephalanthus - Buttonbush
-Baptisia - False Indigo
-Kniphofia - Red Hot Poker
-Perovskia - Russian Sage
Give these plants several additional weeks to start pushing out new growth. Butterfly bush and Russian sage, in particular, may not show signs of life until early June in cold climates, so they need an extra-long grace period. The false indigo, perennial hibiscus, red hot poker, and ornamental grasses are best cut back in early spring, before the new growth begins. As for the other plants on this list, resist the urge to cut them back too soon. Wait until you see little green buds developing on their stems or coming from the ground to prune them or cut them back at all – those green buds will tell you exactly where you may need to prune off any winter damage that may have occurred.
Just because these plants take a while to look alive doesn’t mean they’ll spend the summer stunted – given proper care, longer days, and the warming temperature trend of late spring, they’ll quickly catch up to their earlier-sprouting counterparts, growing vigorously and blooming well despite the fact that they slept in late.
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