There are a few perennials that I simply cannot seem to grow. I seem to have a whole list of them, but the one I am thinking of right now is hollyhock. I love them, my grandparents always had them, but I can’t seem to grow them. I tried seed, and my chickens got them before they could grow, then I put in plants; they bloomed the first summer, then died that winter. I wonder why.
I’m guessing you may have purchased one that was kept in the nursery the first year, and then the plant was ready to bloom the second year.
Hollyhock is a biennial, which means that it is vegetative the first year, then blooms the second year, then dies at the end of the growing season. Your next move (in an ideal world) should have been to collect the seeds from the dying plant and disperse them to begin the process again. If you do this each year, you’ll have constant hollyhock plants in various stages, and a stand that is to the observer behaving more like perennials.
There is a terrific article on Page 60 of the March/April issue of Fine Gardening, “Biennials That are Worth your Time.” The author, Amanda Thomsen, does a great job of explaining her method to keep biennials as a more permanent part of your garden.