How soon do you need to regrow these? The groundhogs would not let mine grow, and now I'm wondering how much of a show I'll get this year assuming I can keep them off.
Name: Paul Utah (Zone 5b) Grandchildren are my greatest joy.
In my garden White Swan is not as vigorous as the self seeding purples but is more vigorous than several other named cultivars I have tried. It has also self-seeded a little.
