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Epilobium densiflorum
Also called Dense Spike Primrose, Dense Flowered Spike Primrose, Dense Flowered Willowherb, Dense Flower Spike Primrose
Denseflower willowherb is a native annual wildflower of western North America, growing up to about a metre tall with dense spikes of pinkish purple flowers. It is best grown from seed in full sun with well-drained soil.
Epilobium densiflorum is a species of willowherb known by the common names denseflower willowherb, dense spike-primrose or dense boisduvalia. It is native to western North America from British Columbia to Baja California, where it is found in a variety of habitats. This is an erect annual often exceeding a meter in height with fuzzy green foliage. The pointed leaves are up to 8 centimeters long near the base of the plant, and the upper leaves are generally more hairy than the lower. The stem may branch or not. The top of the stem is occupied by a hairy, leafy, densely flowered inflorescence. Each flower has four deeply notched petals in shades of pinkish purple to nearly white with dark veining, each about a centimeter long. The fruit is a cylindrical capsule about a centimeter long.
Whorled Leaved Willowherb · Chickweed Willowherb · Pimpernel willowherb · Aboriginal willowherb · Tall annual willowherb · New Zealand Willowherb · Hummingbird trumpet · Fringed willowherb · Talus willowherb · Selfing willowherb · Hill Willowherb · Purpleleaf willowherb
Text excerpted from the Wikipedia article Epilobium densiflorum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
