Contact
Get in touch
Corrections, missing towns and missing crops are the three messages that improve this site fastest. All three are read by the person who builds it.
By email
Write to contact@safetoplant.com. It is a real mailbox, read by one person, usually within a few days. There is no support queue and no ticket number; there is also no autoresponder, so if you get a reply it is because somebody read what you wrote.
What is worth writing about
A date looks wrong
This is the most useful message the site receives. If a frost date here contradicts a long local record — your own notebook, a nearby station, a national service — say which page, which figure, and what your own record shows. The gridded source resolves a district rather than a garden, so a few days' difference is expected and a month's difference is a bug.
My town is missing
1,801 places are computed so far, and the list grows by population. If somewhere is missing, send the name, the country and ideally the coordinates. Very small settlements may never get their own page — the nearest computed town is usually within a few kilometres and climatically identical, and the site will point you to it.
A crop is missing, or its timing is off
Crop timings are stated the way a seed packet states them: weeks before or after the last frost, plus days to maturity. If a crop you grow is not listed, or its window is wrong for the way it is actually grown in your region, say so and cite what you are going by.
Suggest a crop or a correction
Reuse, licensing and press
The derived frost data is already free to reuse with attribution — see the terms of use — so you do not need permission for a blog post, a newsletter, a school project or an app. Get in touch anyway if you need a bulk extract, a format the site does not publish, or a quote for something you are writing.
Privacy requests
This site holds no account, no profile and nothing that identifies you, so in almost every case there is nothing to access or delete. If you want to ask anyway, or you have a question about the advertising cookies described in the privacy policy, write to the same address.
What this address cannot do
It cannot tell you whether it will frost at your house on Tuesday. Every number on this site is a statistic drawn from past decades, not a forecast; for the week ahead you want your national weather service. It also cannot diagnose a sick plant from a description — there are better places for that, and guessing would not help you.