
When to plant
sweetcorn in the UK
Plant in a block, not a row — they're wind-pollinated and need neighbours. Each plant gives you 1-2 cobs, so don't be stingy with numbers.
Growing journey
14 weeks from planting out to harvest · Start indoors 7 weeks before planting out
Get sweetcorn seeds
Links may be affiliate links. We may earn a small commission at no extra cost to you.
What sweetcorn need
Full sun. Sheltered spot. Rich soil.
Spacing
45cm between plants
These are larger plants — give them plenty of space for air circulation.
Varieties to try
Good companions
When to sow sweetcorn
Based on UK average frost date. Enter your postcode for exact dates, or find your city.
Get reminders about sweetcorn
We’ll send you what to sow each month, personalised to your frost date. No spam, unsubscribe anytime.
Where to buy sweetcorn seeds
Links may be affiliate links. We may earn a small commission at no extra cost to you.
What you'll need for sweetcorn
The stuff beginners wish they'd bought sooner.
Each seedling gets its own root space. Less root disturbance when planting out means faster establishment.
More in our equipment guide →Protects from late frost and gives seedlings a head start. Keep a roll in the shed — you'll use it constantly.
More in our equipment guide →Ferric phosphate — pet-safe and organic-approved. Young plants are slug magnets. One night can finish them.
Links go to Amazon. We earn a small commission at no extra cost to you.
Get your exact dates
Enter your postcode for personalised planting dates for sweetcorn.