PlantSowGrowHow to grow Cabbage (Spring Hero F1)
Brassica oleracea Capitata Group
A spring cabbage sown in summer: it sits through winter and gives firm, sweet round heads in April and May, when fresh greens are scarce.
At a glance: Sow early July to early August, harvest from mid March.
When to sow, plant and harvest
Timed for a typical UK garden (last frost mid-April). The app uses your own town's frost dates.
Growing Cabbage (Spring Hero F1): what it needs
- Light
- Full sun · 6+ hours a day
- Watering
- Water regularly in dry weather
- Soil
- Fertile, well-drained soil
- Spacing
- 35 cm
- In pots
- Best in the ground
- Feeding
- A general feed before sowing or planting
- Harvest
- About 270 days from sowing
- Hardiness
- USDA zones 5–9
- Difficulty
- Easy
Step by step
- Early July – early August · 12 weeks after the last spring frost
Sow Seeds Indoors
Sow in modules or small pots of seed compost under cover. Sow in midsummer.
- 5–10 days after “Sow Seeds Indoors” · Mid July
Check Germination
Seedlings should appear in 5–10 days. If sown outdoors, thin to 35 cm apart when big enough to handle.
- 14–21 days after “Check Germination” · Late July – early August
Pot On Seedlings
Move seedlings into 9 cm pots (or keep in modules) when they have their first true leaves.
- Late August · 19 weeks after the last spring frost
Harden Off
Stand plants outside by day for 7–10 days before planting out.
- Early September – early October · 20 weeks after the last spring frost
Plant Out
Plant out 35 cm apart and water in well.
- 0–3 days after “Plant Out” · Early September
Net Against Pests
Cover with fine insect mesh or netting straight after planting to keep off pigeons, cabbage white caterpillars and flea beetles.
- 190–211 days after “Plant Out” · Mid March – early April
Start Harvesting
Cut heads when firm; the stump often sprouts a few spring greens.
- 40–70 days after “Start Harvesting” · Mid April – mid May
Finish and Clear
Clear the remains to the compost heap once cropping ends.
