2500+ Tall Utah 52-70 Celery SeedsNon-GMO | Fresh Seeds Grown and Harvested in USA Latin Name: Apium graveolens Type: Open Pollinated, Heirloom, Warm Season USDA Zones: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Seeds per Ounce: 71,000 Planting Method: From Transplant Sunlight: Full Sun Height: 30 Inches Color: Green Sowing: Celery grows best as a fall crop in most climates, so start your seeds about 10 weeks before the last spring frost. Soak them overnight to speed germination, then sow them in a flat in rows 1" apart; keep the soil moist and keep the flat out of direct sun. Germination often takes two or three weeks. When the plants reach about 2" tall, transplant them into pots; set them out in the garden when they reach 6" tall or after the last frost date. Space them 6-8" apart in rows 2-3' apart, putting them at the same soil level as in the pots. Make sure the soil is enriched with compost or other organic matter. For companion planting benefits, plant celery with tomatoes, cauliflower, or cabbage. Growing: Provide water each week; feed them with compost or fertilizer every two weeks. Carefully remove weeds. If the temperature falls below 55 degrees F consistently, cover the plants. Growing success for celery depends on plentiful moisture, enriched soil, and protection from high temperatures and sun. For a sweeter, more tender taste, many gardeners blanch their celery about two weeks before harvesting it; this is accomplished by wrapping newspaper around the stalks up to the point where the leaves begin. Other methods use boards to shield the stalks from the sun, or simply mound dirt up to cover the stalks. Harvesting: Cut off the entire plant at soil level as soon as it reaches a diameter of 3", or remove individual outer stalks when they reach 12" tall. Celery leaves can also be used, such as for flavoring like an herb or in salads.