Prior to planting, soak seeds in warm water overnight to reduce germination time. Work organic fertilizer or compost into the ground before implanting.
Celery seeds should always be sowed indoors first for best success rate, 8 to 10 weeks before the average last frost date in your area.
For summer gardeners, a late summer direct sowing is possible.
Harden off seedlings before transplanting by reducing water slightly, and keeping them outdoors for a couple hours at daytime.
Transplant seedlings 10 to 12 inches apart, direct sow seeds ¼ inch deep. This will necessitate to be reduced to 12 inches apart when they get to about six inches high.
GROWING REQUIREMENTS
WATERING
Celery requires lots of water. Make sure to provide plenty of water during the entire growing season, especially during the hot and dry weather.
PESTS
Celery may show brown spots, blisters, slow/stunted growth, chewed stems, yellow leaves, holes in leaves etc. It can be the result of the pests like Cutworms, Aphids, Whiteflies, Bolting, Mosaic Virus, Fusarium Wilt.
SOIL
Celery prefers moist, rich, well-composted soil with a pH ranging from 6 to 6.5.
SPOT
Celery requires full sun to light shade.
TEMPERATURE
The temperature should stay between 13 and 21ºC [55 and 70ºF] throughout growing period.