Primrose's bloom time
How long are primrose's in bloom? Until fall?
I live in SW Wisconsin and have a garden full of Primroses that look like a rose, are legumes and travel underneath the ground to multiply. They bloom all summer until frost. You need to keep them contained or they will take over your property! I love them. They will bloom, then rest a spell, rebloom and are tough. They will need water once in awhile to keep the blooms going and that is about it. Hope this helps.