When to plant cucumber in Tyumen
In Tyumen, cucumber: sow seedlings around 5 April for the greenhouse and around 26 April for open ground; plant into a greenhouse around 17 May; plant out into open ground around 7 June.
Last spring frost around 14 May, first autumn frost around 1 October. Frost-free days: 140 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.