Growing Collards, also Collard greens, Borekale

Brassica sp. : Brassicaceae / the mustard or cabbage family

Jan F M A M J J A S O N Dec
            S          
              T T      
P P           P P P P P

(Best months for growing Collards in USA - Zone 10b regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • P = Sow seed
  • Easy to grow. Grow in seed trays, and plant out in 4-6 weeks. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 8°C and 30°C. (Show °F/in)
  • Space plants: 40 - 50 cm apart
  • Harvest in 8-11 weeks.
  • Compatible with (can grow beside): Dwarf (bush) beans, beets, celery, cucumber, onions, marigold, nasturtium, rhubarb, aromatic herbs (sage, dill, chamomile)
  • Avoid growing close to: Climbing (pole) beans, tomato, peppers (chili, capsicum), eggplant (aubergine), strawberry, mustard

Your comments and tips

Post a comment or question Display Newest first | Oldest first, Show comments for USA | for all countries
28 Aug 22, Darlene Gibbs (USA - Zone 8a climate)
It is August 28th. Is it too late to plant collard greens?
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04 Sep 22, (USA - Zone 8a climate)
Plant Aug - Sept it says.
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17 Aug 22, Ethel woodson (USA - Zone 8a climate)
It's super hot in texas right now. Can I still sow my Vate Collard seeds right now or should i wait till Oct.,?
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04 Sep 22, (USA - Zone 8a climate)
Plant Aug Sept - if really hot protect them from the sun for some of the day. Shade cloth or something.
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05 May 21, Rolanda (USA - Zone 9b climate)
My collard seeds did germinate but they aren't growing beyond the first set of leaves. What his happening?
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06 May 21, Anonymous (USA - Zone 9b climate)
Are you planting at the right time? How fertile is your soil. Fertiliser, watering and full sunlight are required.
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20 Aug 20, Joell (USA - Zone 7a climate)
When to plant collard kale turnip mustard green (Check here www.gardenate.com/plant/Collards?zone=10 and under plant name for the others - Gardenate)
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14 Jul 17, Kathy (USA - Zone 6b climate)
I did not start my collard, cabbage, seed in March - can I plant the seeds in the garden now in mid-July? Also, can I plant cauliflower in the garden from seed in July? I live in zone 6b. Thanks!!!
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18 Aug 16, Triciia (Australia - temperate climate)
I love my smoothies and have started to build a raised garden please can you tell me what greens do well together and when... Thank you in advance. Kind regards, Triciia
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01 Mar 12, Debra (USA - Zone 8a climate)
My collards are starting to grow what looks like seed pods at the top of the plant. How do I harvest the seeds?
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It is August 28th. Is it too late to plant collard greens?

- Darlene Gibbs

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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