Mid–late AprilStart indoors in warmth and reserve enough bright space for raising plants.
- Germination and temperature
- Germinate in warmth: at least about 18 °C.
- 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 in warm soil. Keep the root ball intact and give the cultivar enough space.
Plan around six weeks of bright propagation space. Winter types then still need enough time to grow and mature.
Sources and use
RHS · pompoen ↗Britse teeltrichtlijn voor een gematigd klimaat; de genoemde perioden zijn richtlijnen voor Nederland en Vlaanderen.
De Bolster · Uchiki Kuri: een rankend Cucurbita maxima-type ↗Nederlandse producent of teeltbron; de rasinstructie blijft leidend.
De Bolster · Meteor F1: een compact Cucurbita maxima-type ↗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.