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)



Water Requirements:

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

Sun Exposure:

Sun to Partial Shade



Foliage Color:

Unknown - Tell us


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)

Where to Grow:

Unknown - Tell us


All parts of plant are poisonous if ingested

Bloom Color:

Bright Yellow

Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Other details:

May be a noxious weed or invasive

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


This plant is said to grow outdoors in the following regions:

Oakland, Maryland

Cole Camp, Missouri

Monroe City, Missouri

Brooklyn, New York

Millersburg, Pennsylvania

Leesburg, Virginia

Midlothian, Virginia

Powhatan, Virginia

show all

Gardeners' Notes:


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.


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.


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.


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.