Q: I have several 'Bowles Mauve' erysimum that are quite overgrown and need trimming. I know this is a short-lived perennial. My question is should I cut them back severely, to the woody stems? Will ...

Question: I bought several orange Erysimums for my garden because I was told they flower for months, but they seem to have flowered their heads off and now I’m wondering if that’s it for the summer, ...