Dyer's woad

Overview

Dyer's woad (Isatis tinctoria) is an invasive Eurasian plant species with bright yellow flowers and somewhat woody stems. It's been used for centuries to make blue-green dye for fabric and clothing, and is found in disturbed areas such as roadsides, gardens, and waste areas. Dyer's woad adapts easily to various types of soil and prefers full sun, although it will tolerate moderate shade. As an invasive, it can crowd out native plants and severely diminish biodiversity, so it should be carefully controlled and monitored.

Care Guide