Growing guide · Vegetable garden and berries
Lettuce
Lactuca sativa
A fast, easy leaf crop for beds, boxes and balconies. Sow several times.
Key figures
| Item | Value | Source |
|---|---|---|
| Sowing / planting | from May, repeat sowings | [1] |
| Sowing depth | 1 cm | [2] |
| Seed rate / spacing | rows 20–30 cm, thin to about 20 cm (RHS: 15–30 cm) | [1][2] |
| Temperature | germinates at 16–20 °C; above 24 °C stops germination | [1] |
| pH | 6,5 | [3] |
| Harvest | no exact value in the sources |
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.