LEAFY
Lettuce and leafy greens under protection
Short cycles, tight delivery windows, and a crop that works well in film, PC or glass with modest climate control.
Tipburn is a transpiration problem: strong light plus low airflow at the head is the usual cause, not calcium alone.
For year-round supply, succession sowing matters more than house size — a batch every week beats one big harvest.
Climate range and crop notes
| Day temperature | 16–22 °C |
| Night temperature | 10–15 °C |
| Humidity | 60–75 % RH |
| Light | 12–17 mol/m²/day; excess light causes tipburn |
| EC / pH | 1.4–2.0 mS/cm, pH 5.5–6.0 |
| Cycle | 25–45 days depending on season |
General horticultural ranges for a well-managed crop; local variety, light and market specification move these values. Not a yield guarantee.
First-season mistakes that cost the most
- Designing for maximum light in a crop that prefers moderate light.
- Skipping pre-cooling and cold storage between harvest and delivery.
Next step
Tell us the crop and the site
We reply with the house family, the systems the crop needs and the first questions to settle before design.