Planting calendar

Enter your two frost dates. Every plant gets its dates, counted in weeks from them. Northern hemisphere.

Last spring frostExample date: replace with yoursFirst autumn frostExample date: replace with yoursShow

How these dates are made. They are rules of thumb, counted in weeks from your frost dates: hardy bulbs go in from your first autumn frost to six weeks after; tender tubers and corms are planted out from the last frost; potatoes go in a few weeks before it. Your soil, weather and variety can shift them by a few weeks. Find your average frost dates from a local weather service or extension office. General guidance: RHS, Clemson Extension.