How to Fertilize woad?
Single spring application of slow-release general garden fertilizer

woad · Isatis tinctoria
Also known as: ash of Jerusalem; common dyer's weed; dyer's weed; dyer's woad; Jerusalem ash
Grow in well-drained, preferably neutral or alkaline soil, in full sun; it tolerates poor infertile soils
Single spring application of slow-release general garden fertilizer