The newly emerged growth on several of my perennials has been destroyed by a late spring freeze. Will the perennials come back?

FAQ
Question: 

The newly emerged growth on several of my perennials has been destroyed by a late spring freeze. Will the perennials come back?

Answer: 

Newly emerged perennial growth is susceptible to damage from freezing temperatures.  While freezing temperatures may have damaged or destroyed the new growth, the roots and crowns of healthy, well-established perennials should still be alive.  The damaged perennials should send up a second flush of growth in a few weeks.  Good care (for example, watering weekly during dry weather) this spring and summer should help the perennials recover.  

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