Photo by Melody

PlantFiles: Canola, Oil Seed Rape, Canadian Turnip, Rutabaga, Swede, Swedish Turnip, Yellow Turnip
Brassica napus

Family: Brassicaceae (brass-ih-KAY-see-ee) (Info)
Genus: Brassica (BRAS-ee-ka) (Info)
Species: napus (NAP-us) (Info)

2 members have or want this plant for trade.

View this plant in a garden


12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

9-12 in. (22-30 cm)

Not Applicable

Sun Exposure:
Full Sun
Sun to Partial Shade

Unknown - Tell us

Bloom Color:
Bright Yellow

Bloom Time:
Late Winter/Early Spring
Mid Spring
Mid Winter


Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
From seed; direct sow outdoors in fall

Seed Collecting:
Unknown - Tell us

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By samkar
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By htop
Thumbnail #2 of Brassica napus by htop

By Songbird839
Thumbnail #3 of Brassica napus by Songbird839

By pete2255
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By debnes_dfw_tx
Thumbnail #5 of Brassica napus by debnes_dfw_tx

By debnes_dfw_tx
Thumbnail #6 of Brassica napus by debnes_dfw_tx

By debnes_dfw_tx
Thumbnail #7 of Brassica napus by debnes_dfw_tx

There are a total of 8 photos.
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2 positives
1 neutral
No negatives

Gardeners' Notes:

Positive debnes_dfw_tx On Apr 6, 2008, debnes_dfw_tx from Fort Worth, TX (Zone 8a) wrote:

A volunteer (or as Magnes says.. a "hit and run" lol) of this plant showed up near my bird feeders this spring. I left it where they planted it because I recognized it as a Brassica. This family of plants are host for a few species of "White" butterflies, wherein their larvae depend on them to survive.
One is the Cabbage White which I have already observed on this plant.

Several other species of butterflies and bees have been visiting it as well.

Neutral pete2255 On May 2, 2005, pete2255 from South East
United Kingdom (Zone 8a) wrote:

This looks good in the fields when in flower but it seeds everywhere and appears in the cracks in paving even in towns. Can be invasive.

Positive Songbird839 On Mar 20, 2005, Songbird839 from Medicine Hat, AB (Zone 3a) wrote:

The town of Tisdale, Saskatchewan, Canada is well known for their honey and their many fields of rapeseed or canola. Signs coming into Tisdale, proclaim Tisdale as "The land of rape and honey". This is where I grew up, so mass fields of yellow was a very common sight for me.


This plant has been said to grow in the following regions:

Harned, Kentucky
Lake Lure, North Carolina
Fort Worth, Texas
San Antonio, Texas

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