Photo by Melody

PlantFiles: Creasy, Creecy, Creesy, St. Barbara's Herb, Wintercress, Yellow Rocket
Barbarea vulgaris

Family: Brassicaceae (brass-ih-KAY-see-ee) (Info)
Genus: Barbarea (bar-BAR-ree-uh) (Info)
Species: vulgaris (vul-GAIR-iss) (Info)

One member has or wants this plant for trade.


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

Unknown - Tell us

USDA Zone 2b: to -42.7 C (-45 F)
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Sun to Partial Shade

All parts of plant are poisonous if ingested

Bloom Color:
Bright Yellow

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


Other details:
May be a noxious weed or invasive
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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to view:

By Equilibrium
Thumbnail #1 of Barbarea vulgaris by Equilibrium

By creekwalker
Thumbnail #2 of Barbarea vulgaris by creekwalker

By creekwalker
Thumbnail #3 of Barbarea vulgaris by creekwalker

By LadyAshleyR
Thumbnail #4 of Barbarea vulgaris by LadyAshleyR

By LadyAshleyR
Thumbnail #5 of Barbarea vulgaris by LadyAshleyR


1 positive
2 neutrals
1 negative

Gardeners' Notes:

Neutral creekwalker On Nov 5, 2007, creekwalker from Benton County, MO (Zone 5a) wrote:

The plant was introduced to the US early and has been traditionally used for greens and medicinally. However, recent studies are indicating that consumption of Yellow Rocket could damage the kidneys.

Neutral kaybear On Feb 21, 2005, kaybear from Midlothian, VA (Zone 7a) wrote:

I have not personally grown this plant, but several older people visited the nursery I worked at asking to pick this from the fields. They used it as a pot herb (cooked greens.) They called it "creases." It grows as a weed in the nursery fields, but I don't believe it was considered invasive.

Negative Equilibrium On Dec 4, 2004, Equilibrium wrote:

"Problem Child" introduced plant in my region. Not native to North America. Very weedy. I think it was originally used to treat wounds. Rather an early blooming species and I am relatively sure I saw it poking up with crocus one year. This makes it easier to spot and pull out of the ground if you want it gone! Most lawn care professionals routinely use chemicals to eradicate this around me.

Positive psychloman On Aug 12, 2004, psychloman from Brooklyn, NY (Zone 7a) wrote:

I have had this plant growing up a wall for several years now and this year it finally bloomed. The foliage is outstanding and the blooms are pretty. I cannot say it has been invasive.It does take a few years to settle in and bloom.


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

Oakland, Maryland
Cole Camp, Missouri
Monroe City, Missouri
Brooklyn, New York
Millersburg, Pennsylvania
Leesburg, Virginia
Midlothian, Virginia
Powhatan, Virginia

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