How to grow Pumpkin in the UK
Cucurbita maxima
Pumpkin (Cucurbita maxima) is a vegetable that grows well in UK gardens. Greedy — bury kitchen waste under planting hole. Limit to 2-3 fruits per plant for size. This guide covers when and how to sow Pumpkin, the soil and position it likes, watering and feeding, companion planting, and when to harvest.
When to sow & grow Pumpkin
Sowing and harvest window through the year (UK):
Jan | Feb | Mar | Apr Sow | May | Jun Plant | Jul | Aug | Sep Harvest | Oct Harvest | Nov | Dec |
Soil, position & care
- Soil
- Fertile, free-draining soil enriched with garden compost
- Soil pH
- 6.5–7.0 (neutral)
- Position
- Open, sunny site
- Sowing depth
- 2.5 cm on edge
- Spacing
- 1.5–2 m apart
- Sowing
- Sow indoors Apr–May; plant out after frost on a rich mound
- Growing
- Feed and water heavily; limit to 2–3 fruits for size
- Harvest & upkeep
- Cure in the sun before storing; harvest before frost
- Watch for
- Slugs, powdery mildew
Companion planting for Pumpkin
Grows well with:
Keep apart from:
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Pumpkin FAQs
When should I sow Pumpkin in the UK?
In the UK, sow Pumpkin in April. Sowing across these months gives the plant the right soil temperature and day length to establish well.
What grows well with Pumpkin?
Pumpkin grows well alongside Borage, Pot Marigold, Nasturtium, Runner Bean, Sweetcorn. Good companions can deter pests, attract pollinators or make better use of space.
What should you not plant near Pumpkin?
Keep Pumpkin away from Potato, which can compete with it or share pests and diseases.
How much sun does Pumpkin need?
Pumpkin prefers full sun (6+ hrs direct).
When is Pumpkin ready to harvest?
Pumpkin is typically ready to harvest in September, October in the UK.
Is Pumpkin easy to grow?
Moderate. Greedy — bury kitchen waste under planting hole. Limit to 2-3 fruits per plant for size.