GreenlyWhen to plant cucumber in Bilbao
In Bilbao, cucumber: sow seedlings around 31 March for the greenhouse and around 21 April for open ground; plant into a greenhouse around 12 May; plant out into open ground around 2 June.
Last spring frost around 14 March, first autumn frost around 26 December. Frost-free days: 287 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.