vegetable
brassica family

Rocket

Eruca vesicaria

Rocket is the ultimate fast salad crop — peppery, aromatic leaves ready to pick just 4–6 weeks after sowing. Two types are commonly grown: salad rocket (Eruca vesicaria), an annual with a bold, mustardy bite, and wild rocket (Diplotaxis tenuifolia), a perennial with narrower, more deeply lobed leaves and a stronger, nuttier flavour. Both are easy to grow and highly productive when harvested as cut-and-come-again crops. Sow salad rocket in drills 1cm deep from March to September, making successional sowings every 3 weeks for a continuous supply. It bolts quickly in hot, dry weather, so summer sowings benefit from partial shade and consistent watering. Wild rocket is slower to bolt and produces over a longer period — a single sowing can crop for months. Harvest by cutting leaves when 10–15cm long, taking the outer leaves first. Young leaves are milder; older leaves develop more heat. It grows brilliantly in containers, window boxes, and even growing bags on a balcony. Self-seeds freely if allowed to flower — the white or yellow flowers are edible and add a wasabi-like kick to salads. A must-grow for any allotment with its combination of speed, flavour, and versatility.

Plan where to grow Rocket using our vegetable garden planner.

SunlightPartial shade
WateringModerate
Height25cm
Spacing15cm
Germination4–7 days
Sowing MethodDirect sow
Frost HardinessHardy
Sowing Depth1cm

When to Sow Rocket

Sow rocket in March, April, May, June, July, August, September.

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Sowing months

Time to Harvest Rocket

Expect to harvest approximately 1 month after sowing.

Companion Plants

Expected Yield

First harvest in 4–6 weeks; cut-and-come-again for multiple harvests from each sowing.

Growing Tips

Sow successionally; grows well in containers

Common Problems with Rocket

Bolting in summer

Salad rocket bolts quickly in hot weather, producing flower stalks and bitter leaves. Sow in partial shade during summer months, keep well-watered, and harvest frequently to delay bolting. Wild rocket is much more bolt-resistant and a better choice for summer growing. The flowers are edible if plants do bolt.

Flea beetle

Tiny round holes peppered across the leaves are caused by flea beetle, particularly in hot, dry weather. The damage is cosmetic but makes leaves unsightly. Cover with fine enviromesh, water regularly (beetles prefer dry conditions), and grow alongside taller plants for shade. Fast-growing rocket usually outpaces the damage.

Caterpillars (cabbage white butterfly)

As a brassica, rocket can attract cabbage white butterfly caterpillars that devour the leaves. Cover with enviromesh or fine netting from May to September. Check undersides of leaves for clusters of yellow or white eggs and rub them off. Small plantings are more easily managed than large beds.

Plan your rocket in the allotment planner

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