“I found what looks like some sort of cocoon or egg sac on my sedum stalks during my fall cleanup. Can you identify it?” asks Birds & Blooms reader Julie Schmitt of Juda, Wisconsin. Experts Kenn and ...

A: I spotted this picture shared in the Creative Gardening Facebook group, and the majority of respondents correctly identified it as a praying mantis sac, or ootheca. Recently I had ‘Christmas tree ...