I purchased two wisteria plants about a month ago, Ihave been keeping then indoors at night and putting them on the deck during the day. My question is can I plant them outdoors now or is it too soon. I live in zone 7.Thanks for your help. A.J.
Since you have been protecting them at night, you might want to wait until the nights are reliably above freezing and preferably around 40 degrees or so before planting them. If, however, you have a way of protecting the tops should a freeze threaten, then go ahead and plant them now.