GreenlyWhen to plant watermelon in Chernihiv
In Chernihiv, watermelon: sow seedlings around 7 April for the greenhouse and around 28 April for open ground; plant into a greenhouse around 9 May; plant out into open ground around 30 May.
Last spring frost around 11 April, first autumn frost around 28 October. Frost-free days: 200 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.