Cold hardy violas
Are there cold-hardy violas that can grow from seedlings and survive in an unheated cold frame in Zone 5b from March through April?
My original idea was to start with grow lights at the beginning of March and grow the plants for 8 wks.under the grow lights and then transplant out the end of April into raised beds.
But if I can use the cold frame and avoid the costly, electricity-using lamps, I would rather go that route.
Thank you for any feedback.