A picture of a Rapeseed

Rapeseed

Brassica napus var. napus

Also known as

Canola, Oilseed Rape

Full Sun
Easy care
Light watering
Half-hardy

H7-H3

RHS hardiness

-20°C

Minimum temperature

Expected size

Height
Spread

2m

Max

50cm

50cm

Min

30cm

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

Rapeseed Overview

Canola are annual easy-to-grow herbs with compound leaves that bear bright yellow flowers in summer. The plant is used to make rapeseed oil, which is used for cooking and as a salad oil, as well as in mayonnaise and margarine. Rapeseed have a high vitamin C and mineral content. The registered name comes from a company in Canada, hence Can(Canada)o(oil)la(low acid)!

Common problems with Rapeseed

Alternaria leaf spot, blackleg, black rot, cabbage aphid, cutworms, downy mildew, flea beetles, white mould, and white rust.

    How to harvest Rapeseed

    Rapeseed is a fast-ripening plant and is ready for harvest when the seeds turn from green to black. Rapeseed is mechanically harvested by combine, swathing or cut by hand.

    How to propagate Rapeseed

    Seed

    Sow seeds shallowly, 2–3 cm deep, 18–23 cm apart in Spring and 40 cm apart in Winter. Germination takes 4-10 days.

    Special features of Rapeseed

    Attracts useful insects

    Attracts hoverflies which consume aphids, as well as attracting bees and butterflies.

    Crop rotation

    Useful as an alternative crop in crop rotation.

    Other uses of Rapeseed

    Culinary

    Edible

    The seeds are edible and are used to produce Rapeseed Oil/Canola Oil.