How to Grow Kale (UK guide)
Kale brings nutritious, tasty leaves to the winter table and is easy to grow in UK gardens. Its frost-hardy nature and long picking period make it a rewarding choice for beginners and seasoned growers alike.
How to grow kale successfully
Kale is an extremely versatile brassica that thrives in cooler weather, withstanding frosts that improve its flavour. Suitable for small plots or containers, it yields fresh greens long after most veg have finished.
Grown Vegetables
Hardy, nutritious, productive through winter
How to Grow Kale from Seed
- 01Fill modules or seed trays with moist multipurpose compost
- 02Sow kale seeds 1cm deep and cover lightly with compost
- 03Place in a bright, cool spot and keep moist until germination
- 04Transplant strong seedlings when large enough to handle
- 05Harden off and plant outside after last frosts
You will need
- 01Moist but well-drained soil
- 02Full sun or partial shade
- 03Protection from pests
- 04Regular watering in dry spells
Caring for Young Kale Plants
Harden off young plants by gradually exposing them to outdoor conditions over 7-10 days before planting out. Space plants 30cm apart to allow air circulation and reduce risk of disease. Check regularly for pests like slugs and cabbage white larvae and remove promptly.
Plant Calendar
Kale needs
Cool, moist soil
Kale prefers soil that retains moisture but drains well, helping roots grow steadily and leaves stay succulent.
Plenty of light
A position with at least a few hours of direct sun daily promotes robust, healthy leafy growth.
Netting or fleece cover
Protecting young plants from pigeons and cabbage butterfly can make all the difference to your crop.
Regular feeding
A nitrogen-rich liquid feed keeps kale leafy and productive, especially in pots.
Kale FAQs
Kale leaves can be picked regularly once the plant is established. Harvest outer leaves every 1–2 weeks from late summer through spring, allowing the central crown to continue producing new growth.
Kale grows well in containers. Choose a pot at least 30cm deep and wide, filled with quality peat-free multipurpose compost and ensure good drainage by adding crocks or gravel to the base.
Feed kale with a nitrogen-rich fertiliser or a balanced organic feed every 4–6 weeks during active growth. This supports lush foliage and strong plants, especially in pots or less fertile soils.
Kale can be attacked by cabbage white butterfly caterpillars, aphids, and pigeons. Netting or fleece protects young plants, while regular checks for pests help you act quickly to minimise damage.