Maximizing celery cultivation by growing up to 364 celery plants per aeroponic tower annually. When growing celery on the towers, it takes 50 days to reach maturity from the day you transplant the seedlings. However, celery is notoriously slow to germinate, requiring up to 21 days just to germinate. It then can take 4 to 6 weeks post-germination until the seedling has reached a size for transplanting. To avoid overcrowding, sow one seed per cube of agricultural rock wool. Multiple seeds in one p

Celery requires a long growing season, so start seeds indoors 12–14 weeks before your area’s last frost date. For Zone 5b, February is ideal. The seeds are tiny, so sprinkle them on a soil mix (e.g., coco coir and worm castings), lightly cover with coir, and keep moist. Once sprouted, thin or pot seedlings individually. Keeping them in medium pots until transplanting saves space. By early May, transplant seedlings to their final spot. Celery thrives in semi-shaded areas, making it perfect for un