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Woadwaxen, Dyer's Greenwood, Dyer's Greenweed
Genista tinctoria

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Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Genista (jih-NIS-tuh) (Info)
Species: tinctoria (tink-TOR-ee-uh) (Info)

Category:

Shrubs

Height:

24-36 in. (60-90 cm)

Spacing:

36-48 in. (90-120 cm)

Hardiness:

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:

Full Sun

Danger:

All parts of plant are poisonous if ingested

Bloom Color:

Bright Yellow

Bloom Time:

Late Spring/Early Summer

Foliage:

Deciduous

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

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

Properly cleaned, seed can be successfully stored

Regional

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

Anoka, Minnesota

Albuquerque, New Mexico

Great Cacapon, West Virginia

Gardeners' Notes:

0
positives
0
neutrals
1
negative
RatingContent
Negative

On Feb 26, 2010, greenthumb99 from Lucketts, VA (Zone 7a) wrote:

Grows readily in my garden. Roots run just under the soil surface and new plants pop up all over. Planted one plant in my herb garden and then spent the next two years eliminating it. Luckily, the young plants are very distinctive and easy to spot. Would grow again only in a container.