A tall biennial, to around 1.5m high in flower, with lance-shaped, deep green leaves often with strongly wavy edges. Slender spikes of tiny yellow flowers are produced in summer. This plant can be used to produce a yellow dye
Growing Information
Height
1-1.5 Metres
Spread
0.1-0.5 Metres
Care Guide
Cultivation
Grow in well-drained, preferably alkaline soil in full sun or part shade
Propagate by seed, sown in situ in autumn for flowers the following summer. Do not cover, seeds need light to germinate. In colder areas, seedlings may need to be protected with a cloche over winter. Plants will self-seed in place; transplant with care as they dislike root disturbance
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