Celery Seeds Red Giant 1000 Celery Seed 4 Planting Growing UK Mr Fothergill's
Indoors March to May. A temperature of 15-20°C (60-68°F) is ideal. Transplant seedlings to other trays, 5cm (2") apart, when large enough to handle (Always handle by a leaf, never by the stem). Grow on in cooler, but not cold conditions.