Terms of Use

Last updated: November 2026. Have these terms reviewed by a legal professional before launch.

The service

WhenSow provides gardening planning information: hardiness-zone estimates, average frost dates, and suggested planting dates for common vegetables. All dates are estimates based on long-term averages and public data. They are not a forecast and not a guarantee of results — weather, soil, and local conditions vary, and you are responsible for checking local conditions before planting.

Your account

You are responsible for your account credentials and for the accuracy of the location data you enter. One account is for one household; please don't share logins publicly.

Payments

Purchases are processed by Digistore24 as merchant of record. The main product is a one-time payment. Optional add-ons offered at checkout are also one-time. Refunds are governed by our Refund Policy and Digistore24's buyer terms.

Acceptable use

Don't scrape the service at scale, attempt to access other users' data, or resell the calendars as your own product. We may suspend accounts that abuse the service.

Liability

To the maximum extent permitted by law, our liability is limited to the amount you paid for the product. Gardening outcomes depend on many factors outside our control.