How to grow canterbury bells

When to plant canterbury bells

Canterbury bells is a true biennial: it forms a low rosette of basal leaves the first year and sends up bell-flowered stems the second. NCSU says to sow seed in late spring or early summer for bloom the following year, mulch well through the first winter, and let some seed pods mature so the planting renews itself.

Canterbury Bells is timed by season rather than your frost dates, so the planting calendar does not generate ZIP-specific dates for it. Check the cited sources below to fine-tune for your area.