When to plant watermelon in Cherkasy
In Cherkasy, watermelon: sow seedlings around 3 April for the greenhouse and around 24 April for open ground; plant into a greenhouse around 5 May; plant out into open ground around 26 May.
Last spring frost around 30 March, first autumn frost around 11 November. Frost-free days: 226 days.
The dates follow the Greenly calendar: open ground a week after the last frost once the soil is warm enough for the crop, frost-hardy crops three weeks before it, an unheated greenhouse three weeks earlier, seedlings sown so they are ready on the day. In a cold year allow a week or two more.