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Growing Collards

Growing Collards

Bulldog Hybrid Collard

Bulldog Hybrid Collard item #01749


Collards are a hardy, heat and cold-tolerant cruciferous vegetable grown for its nutritious leaves. Young leaves are used raw in salads and mature leaves are boiled or steamed. Can be grown for spring or fall crops.

How To Grow

Direct sow up to 4 weeks before the last spring frost or start indoors 6 to 8 weeks earlier. For fall crops, transplant 6 to 8 weeks before the first expected frost in fall. Plant seed ¼ to ½ to inch deep. Maintain at 70 to 75 degrees and expect germination in 10 to 21 days.

Transplant seedlings with the roots slightly deeper than when growing in pots. Space plants 12 to 24 inches apart with 18 to 30 inches between rows.

Collards tolerates light frosts and leaves develop a milder, sweeter flavor after frost. It can be harvested throughout winter in mild (zone 8 and warmer) climates.


For full sun in fertile, well-drained soils. Best in soils with pH of 6.5 to 6.8. Benefits from mulching to keep soil cool and moist. Leaves can be harvested individually as needed or whole plants can be cut. 

Fertilizer Recommendations

Collards are heavy feeders that benefit from regular fertilization. Use full rates of ALGOplus All Purpose 6-6-6 liquid fertilizer, Neptune Fish & Seaweed Fertilizer 2-3-1, or Osmocote slow-release 14-14-14.

Common Problems

Collards have a few insect pests, including aphids, caterpillars, cabbage maggots, flea beetles, harlequin bugs, and slugs. It is sometimes attacked by diseases like black rot, clubroot, and downy mildew.

Alternative Products

Other vegetables in the cabbage family are broccoli, cabbage, and kale.

Product Recommendations

Caterpillars pests including cabbage loopers, diamondback moths, and imported cabbageworms can be controlled with Thuricide. Captain Jack's Deadbug Brew is effective for other insects. Floating Row Covers can be used to exclude pests. Plants can be protected from disease infection with 70% neem oil.

Collard Facts

Although most popular in the Southern US, Collards are also a good crop for Northern gardens. It is rich in vitamins A, B complex, C, E, and K, calcium, protein, and healthy omega-3 fatty acids.



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