How to grow Lupin in the UK
Lupinus
Lupin (Lupinus) is a flower that grows well in UK gardens. Short-lived perennial — replace every 4-5 years. Slug magnet in spring. This guide covers when and how to sow Lupin, the soil and position it likes, watering and feeding, companion planting, and when to harvest.
When to sow & grow Lupin
Sowing and harvest window through the year (UK):
Jan | Feb | Mar | Apr Plant | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
Soil, position & care
- Soil
- Fertile, moisture-retentive but free-draining soil
- Soil pH
- 6.0–7.5
- Position
- Full sun, free-draining soil
- Sowing depth
- 1 cm (chip/soak seed)
- Spacing
- 45 cm apart
- Sowing
- Sow spring; nitrogen-fixing legume perennial
- Growing
- Avoid very rich soil
- Harvest & upkeep
- Deadhead for a second flush; cut down in autumn
- Watch for
- Lupin aphid, slugs
Companion planting for Lupin
Grows well with:
Keep apart from:
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Lupin FAQs
What grows well with Lupin?
Lupin grows well alongside Rosemary. Good companions can deter pests, attract pollinators or make better use of space.
What should you not plant near Lupin?
Keep Lupin away from Chives, Florence Fennel, Fennel, Garlic, Leek, which can compete with it or share pests and diseases.
How much sun does Lupin need?
Lupin prefers full sun (6+ hrs direct).
Is Lupin easy to grow?
Easy — good for beginners. Short-lived perennial — replace every 4-5 years. Slug magnet in spring.