How to grow hollyhock

When to plant hollyhock

Hollyhock is a tall, short-lived perennial (often grown as a biennial) set out as a plant in spring; it readily reseeds to return year after year. Plant in spring once the soil is workable in full sun, in moist, well-drained, organically rich soil.

Hollyhock 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.