April–early MayStart indoors in warmth and reserve enough bright space for raising plants.
- Germination and temperature
- Germinate in warmth, around 18–21 °C; avoid cold, waterlogged seed compost.
- After emergence
- Give seedlings light immediately after emergence. A dark loft needs suitable grow lights; warmth alone is insufficient. Ventilate and keep the compost moist without saturating it.
- Pricking out and potting on
- Sow in individual pots or deep modules. Do not prick out bare-rooted; move the whole root ball before the roots become restricted.
- Hardening off and planting out
- Gradually acclimatise indoor-raised plants to sun, wind and outdoor temperatures; shelter them again on cold nights. After the last frost and hardening off, usually late May–June, with the root ball intact.
These plants grow quickly. Do not start in February if you cannot plant out until late May.
Sources and use
RHS · courgette ↗Britse teeltrichtlijn voor een gematigd klimaat; de genoemde perioden zijn richtlijnen voor Nederland en Vlaanderen.
Feggies · Courgette Ola Redonda — ras- en teeltbeschrijving ↗Nederlandse producent of teeltbron; de rasinstructie blijft leidend.
Feggies · Courgette Black Beauty — ras- en teeltbeschrijving ↗Nederlandse producent of teeltbron; de rasinstructie blijft leidend.
Guideline periods for the Netherlands and Flanders. Check the variety, available light, soil and measured temperatures. Greenhouse heating does not guarantee enough winter light.