Are you sure they're dead? Hibiscus can be slow to leaf out and get going in the spring if something happened over the winter to make them unhappy.
Weekend blooms May 16th
I wouldn't give up on them yet.
They are dead. The roots rotted off the main trunk. My basement just got too cold for some of them. I was really upset to see June's Dragon go down the tubes. She was a favorite from last year. Thanks you guys. I will get better at over wintering, I promise.
I've recently fallen in love with Hibiscus. I don't really know what took so long for it to happen, maybe it was seeing Dupont Nursery's Cajun series, but you realize it is hard to contain one's self and NOT by anymore when I see images like this? Your hibiscus is absolutely breathtaking. I never realized hibiscus were so....something. Very beautiful.
LOL, Glen - welcome to the wonderful world of hibiscus addiction :-)
karen