When to plant or sow Cucumber?

Cucumbers thrive in full sun and need rich, moisture-retentive loam that drains well. They are tender annuals with no frost tolerance, so timing is critical. In temperate Europe, sow seed indoors from mid-April onwards in small pots at 20–25°C, or wait until late May to sow directly outdoors once all risk of frost has passed and soil has warmed to at least 15°C. Cold soil will rot the seed or stunt growth badly. Prepare the planting site by digging in plenty of well-rotted compost or manure a few weeks beforehand—cucumbers are hungry, thirsty plants. If your soil is heavy clay, work in extra organic matter to improve drainage and structure. Sow seed 2 cm deep, on its side to prevent rotting. For transplants raised indoors, harden them off carefully over a week before planting out in late May or early June. Space plants 50 cm apart in rows or blocks, giving trailing types room to sprawl or providing support for climbing varieties. A wigwam of canes, trellis, or netting works well and keeps fruit clean. Plant at the same depth as the rootball—don't bury the stem, which is prone to rot. Water thoroughly after planting and apply a 5 cm layer of organic mulch around the base to conserve moisture and suppress weeds. In cooler springs, consider using cloches or fleece for the first few weeks to maintain warmth. Cucumbers grow rapidly once established, but they need consistent warmth and moisture from the start to succeed.