Contributed image from ISU

Unusually warm temperatures were experienced across Iowa in February with record highs set above 70 degrees and this weather could confuse plants that flower earlier than normal. The warm temperatures followed by normal winter weather could confuse trees, shrubs and plants according to horticulturists with Iowa State University Extension and Outreach. If trees and shrubs begin to leaf out and then experience freezing temperatures there may be visible damage. The flowers of pussy willows, magnolias and other trees and shrubs that bloom in early spring could be damaged or destroyed. Although, healthy trees and shrubs have the ability to leaf out again if the initial growth is harmed.

Should the cold temperatures return, they may damage newly emerged foliage of bleeding heart, hosta, columbine and other perennials. However, their roots and crowns should be unharmed and should have a second flush of growth. It’s advised, good care in spring and summer should help perennials recover.