Photo by Melody

PlantFiles: Annual Bastardcabbage
Rapistrum rugosom

Family: Brassicaceae (brass-ih-KAY-see-ee) (Info)
Genus: Rapistrum
Species: rugosom

Synonym:Myagrum rugosom
Synonym:Rapistrum rugosom subsp. orientale


12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

24-36 in. (60-90 cm)

Not Applicable

Sun Exposure:
Full Sun
Sun to Partial Shade

Unknown - Tell us

Bloom Color:
Pale Yellow
Chartreuse (Yellow-Green)

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


Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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No positives
1 neutral
1 negative

Gardeners' Notes:

Negative htop On May 2, 2007, htop from San Antonio, TX (Zone 8b) wrote:

Bastard cabbge also is commonly known as turnip weed, turnip-weed, common giant mustard, ball mustard, wild turnip, wild rape and tall mustard-weed. I love seeing this plant in bloom, especially in mass. However after reading how invasive it is, I have to give it a negative rating. It is on the Noxious Weeds List in Texas as well as other states.

Neutral frostweed On Jan 31, 2007, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Annual Bastardcabbage Rapistrum rugosom is Naturalized in Texas and other States.


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

Dallas, Texas
San Antonio, Texas

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