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Grow Sow Greener

Organic Kohlrabi Seeds - Red Cardinal

Organic Kohlrabi Seeds - Red Cardinal

Regular price £1.45
Regular price Sale price £1.45
Sale Sold out  Ships Monday 15th July 


Unlike its cousins from the brassica family, broccoli, cauliflowers and cabbages, kohlrabi is grown for its above ground rosy swollen stem. An unusual looking plant with an unusual but pleasant flavour, it look great anywhere in the veg patch. We love it as it produces for the autumn, winter and early spring salads when other veg are harder to come by. 
  • Pack size: 100 seeds
  • Time to germination: 10 days
  • When to sow inside: Year round as a microgreen
  • When to sow outside: March - August
  • Spacing: 30cm
  • Soil preference: Fertile, well drained
  • Light preference: Full sun, part shade

How to grow Organic Red Kohlrabi from seed

Sow thinly along a one to two centimetre grove you've made in the soil, one seed every six centimetres should do it. After around ten days thin seedlings to thirty centimetres. Kohlrabi are thirsty plants so water when dry and mulch well, grass clipping make a great slow release fertiliser whist reducing evaporation!

What to feed your Kohlrabi plants

Kohlrabi plants are very undemanding. They prefer free draining moist soil, loaded with plenty of organic matter to helps retain moisture which is more important than high nutrition to this crop. A good mix of rotten farmyard manure and fish, blood and bone meal with some volcanic rock dust and kelp powder gives them a rich, balanced and diverse diet for strong organic growth over the season. You can scatter an extra handful of blood fish and bone after a month of growing but probably isn't necessary. T

Keeping pests away

Kohlrabi suffers from the same pests as all brassicas, notably cabbage white however no where near as severely. Luckily Kohlrabi is relatively trouble free. 

Grow Sow Greener is a regenerative gardening company advocating back to the roots tried and tested methods. We don’t recommend the use of or sell any extremely profitable but damaging pesticides, herbicides or inorganic fertilizers. They are detrimental to the health of your entire garden ecosystem, from microbe to mammal.

Encourage birds, hedgehogs and toads to take up residence instead, as they are all voracious predators of snails and slugs. Provide a water source as well as shelter and winter food for birds.


Delivery Costs

Our shipping is broken down into two categories and are dispatched the same or next day as standard.

1. Unlimited "Small" (Garden) Seed Packets:

- Including wooden plant markers and sprouting bags.

- £1.99 - Standard Delivery 2 - 4 business days.

- £4.90 Express Delivery 1 - 3 business days

2. Everything Else - Sprouting and Microgreen Seeds, Growing Equipment, Gifts and Grow Kits:

UK Mainland.

- £3.85 - Standard Delivery (2 - 4 business days) on orders between 0 and 2kg.

- £6.50 - Next Day Courier Service on orders 0 - 4.5kg.

- £8.95 - Next Day Courier Service on orders over 4.5kg.

- Contact us for a quote on orders over 26kgs.

Ireland, Northern Ireland, Isle of Man, Guernsey and Jersey.

- £9.45 - Standard Delivery (2 - 4 business days) on orders between 0 and 2kg.

- £23.50 - Standard Delivery on orders 2kg - 26kg.

- Contact us for a quote on orders over 26kg.

The EU, Switzerland and Rest of World.

Get in touch for equipment sales to the EU and the rest of the world for a competitive shipping quote. Unfortunately we cannot yet post seeds outside the UK.

Delivery and Packaging

All products are packaged plastic free as standard. Your garden seeds are sealed for freshness inside white glassine envelopes which are a water/vapour resistant compostable paper product whilst your Microgreen and Sprouting Seeds arrive in resealable zip lock pouches made from GMO free vegetable starch which are further heat sealed to ensure these great products reach you safely!

Returns Policy

We hope you are loving your purchase however we understand that sometimes things don't go as planned and returns and refunds are necessary. Please refer to the following return and refund policies at

My product is damaged defective or you shipped me the wrong product.

We're sorry about that and understand your frustration! We would love to offer you a refund or a replacement. Please contact us at within 30 days of purchase for a full refund or replacement. 

I ordered the wrong product or simply changed my mind.

No worries, we will refund you the full amount (minus the shipping charges) provided the items are returned in new condition and in original packaging. Once received we will issue your refund however you will be responsible for return shipping costs for non defective products.

Please post to:

Grow Sow Greener

RETURNS (order number)

5 Longfields

West Alvington

Devon TQ73QG


Guaranteed to grow promise.

Should you have absolutely any problems issues or difficulties getting your seeds to germinate or problems/queries regarding our grow kits or equipment, please get in touch at and we will strive to help you out via email, call or video call.

All our seeds and products have been tested here by us however if we still cant help you get growing we will offer a free replacement.

Unfortunately, we cannot accept returns on gift cards.

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