Contact

Spotted a wrong zone, frost date, or verdict? Or want your city, a plant, or a Canadian location added? We read and verify every message.

Email us at: [email protected]

What we can help with

• Data corrections — if a zone, frost date, or verdict looks wrong, tell us the plant and location and we'll verify it against the primary source.
• Missing locations — want your town added? Include (if you can) your nearest known hardiness zone from the USDA or NRCan map.
• Plant requests — a crop we don't cover yet? Tell us and we'll add it to the queue.
• Partnerships — affiliate, sponsorship, or content inquiries.

WhatCanGrow is part of Gravison Group.