Isatis tinctoria
Isatis tinctoria
- begins shipping in April
Dyer's woad has been cultivated since ancient times for its indigo blue dye. In the garden, this biennial herb is known for attracting bees, beneficial insects, and other pollinators when its nectar/pollen rich yellow flowers appear in the second year. Readily self-seeds.
Tip: this plant is a member of the cabbage family and should be rotated to prevent the build up of disease.
Distinctions: TCM plant.
Zones: 4 to 8
Family: Brassicaceae
Type: Herbaceous Perennial
Height: 24 to 48 in.
Spread: 24 to 36 in.
Exposure: Full Sun
Soil: Dry
Bloom Time: May to July
Native Range: central Asia and northern Russia
Image Credits:
- Image 1 (flowers) ''Isatis tinctoria'' *Photo: Pethan *May 2005, Botanic Garden in Utrecht, Netherlands {{GFDL}}
- Image 2 (in landscape) Stefan.lefnaer, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons
- Image 3 (first year rosette) Александр Байдуков, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons