About WhatCanGrow
WhatCanGrow is a free planting intelligence tool that tells you exactly what you can grow in your USDA hardiness zone. Enter your ZIP code or browse by zone, state, or plant to get precise planting calendars, frost dates, and zone-matched growing guides.
We cover 97 plants across 36 US and Canadian growing zones, with planting calendars calculated from real frost date data. No paywalls. No accounts. Just data.