Can someone help me wrap my mind around biennials? Do they bloom their second year and every year thereafter? Or every other year? The way some garden sites word it, they are saying to plant the first and second year so you’ll never be without blooms. If I have biennials that self sow (one ex is Canterbury bells) I should have blooms every year, right? For example, I have planted Canterbury bells before, but never lived in one place long enough to see what happened the year after they first bloomed.