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When to plant
potatoes (maincrop) in the UK
Plant a few weeks after earlies. Earth up as haulms grow. Harvest when foliage dies back — leave in the ground for a week first to toughen the skins.
Growing journey
20 weeks from sowing to harvest
Get potatoes (maincrop) seeds
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What potatoes (maincrop) need
Sun. Rich, deep soil. Water consistently once tubers are forming.
Spacing
38cm between plants
These are larger plants — give them plenty of space for air circulation.
Varieties to try
When to sow potatoes (maincrop)
Based on UK average frost date. Enter your postcode for exact dates, or find your city.
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Where to buy potatoes (maincrop) seeds
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Get your exact dates
Enter your postcode for personalised planting dates for potatoes (maincrop).