September–October; winter purslane according to product guidanceSow very shallowly in cool greenhouse soil or a sheltered container.
- Germination and temperature
- Cool germination conditions; wait if soil is hot.
- After emergence
- Keep emerged lettuce bright and well ventilated; prevent high greenhouse temperatures and drying out.
- Pricking out and potting on
- Sow directly or raise small root balls according to product guidance. Keep young roots intact.
- Hardening off and planting out
- Direct-sown spinach stays in place.
Winter purslane and summer purslane have opposite warmth requirements. Do not confuse them.
Sources and use
RHS · veldsla ↗Britse teeltrichtlijn voor een gematigd klimaat; de genoemde perioden zijn richtlijnen voor Nederland en Vlaanderen.
De Bolster · Winterpostelein (Claytonia perfoliata) ↗Nederlandse producent of teeltbron; de rasinstructie blijft leidend.
Feggies · Winterpostelein of Claytone Cuda zaden biologisch ↗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.