Question
I live in Ohio and this is my first year growing artemisia I like the variegated leaves but it will soon by November and I don't know if I am supposed to cut them off at ground level or leave them alone.  I want them to come back next year.    I also have grown blue butterfly delphinium and am not sure what to do with them either.

Answer
Hi Judy,
Thanx for your question.  As soon as the foliage withers, go ahead and cut the plants back to the ground and then mulch with straw.  Be sure to clear away other dead plant material.  This should create a healthy environment for your plants to rest until spring.  I hope this helps.
Tom