Growing guide · Vegetable garden and berries
Cucumber
Cucumis sativus
The highest-yielding greenhouse vegetable (56 million kg in 2025). At home in a greenhouse or on a windowsill.
Key figures
| Item | Value | Source |
|---|---|---|
| Sowing / planting | start indoors April–May, 3–4 weeks before planting | [2] |
| Sowing depth | 2–3 cm | [2] |
| Seed rate / spacing | 50–70 cm, 2–3 plants/m² | [2] |
| Temperature | germinates at 25–30 °C; grow at 23–24 °C; plant when soil is at least 15 °C | [2] |
| pH | 6.0–6.5 | [4] |
| Harvest | at 20–30 cm; window cucumber about 10 weeks from sowing | [2][3] |
| Storage | 10–14 °C | [2] |
The full guide (care, pests, beginner and professional tips) is currently in Finnish. The figures above are the same and come from the sources below.
These are general guidelines. Always check the variety, seed packet or fertiliser instructions and current regulations.