How to grow Rocket in the UK
Eruca sativa
Rocket (Eruca sativa) is a vegetable that grows well in UK gardens. Bolts in heat — best in spring and autumn. Hotter and peppery once it flowers. This guide covers when and how to sow Rocket, the soil and position it likes, watering and feeding, companion planting, and when to harvest.
When to sow & grow Rocket
Sowing and harvest window through the year (UK):
Jan | Feb | Mar Sow | Apr Sow | May Harvest | Jun Harvest | Jul Harvest | Aug | Sep Sow · Harvest | Oct Harvest | Nov Harvest | 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
- 1 cm
- Spacing
- Thin to 15 cm
- Sowing
- Sow Mar–Sep; bolts fast in summer heat — sow in part shade
- Growing
- Keep weed-free and evenly watered; mulch to hold moisture
- Harvest & upkeep
- Cut-and-come-again; peppery and faster in cool weather
- Watch for
- Flea beetle (pinholes), slugs
Companion planting for Rocket
Grows well with:
Keep apart from:
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Rocket FAQs
When should I sow Rocket in the UK?
In the UK, sow Rocket in March, April, September. Sowing across these months gives the plant the right soil temperature and day length to establish well.
What grows well with Rocket?
Rocket grows well alongside Beetroot, Celery, Dill, French Marigold, Pot Marigold, Mint. Good companions can deter pests, attract pollinators or make better use of space.
What should you not plant near Rocket?
Keep Rocket away from Strawberry, Beef Tomato, Cherry Tomato, which can compete with it or share pests and diseases.
How much sun does Rocket need?
Rocket prefers partial sun (3–6 hrs).
When is Rocket ready to harvest?
Rocket is typically ready to harvest in May, June, July, September, October, November in the UK.
Is Rocket easy to grow?
Easy — good for beginners. Bolts in heat — best in spring and autumn. Hotter and peppery once it flowers.