Dense Spike-primrose | Epilobium densiflorum - Benton Soil And Water Conservation District

Dense Spike-primrose | Epilobium densiflorum

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The image shows a plant with slender green leaves and small pink flowers blooming adjacent to each other.

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Small, pink to rose-purple flowers on erect leafy stems. Leaves are narrow and lance-shaped. Flowers bloom mid-summer.

Plant Details

Habitats	Wet Prairie, Wet Meadows, Riparian Areas
Habitat Notes	Occurs in ditches, prairies, oak woodlands, and conifer forests
Phenology	Annual; flowering May-October
Mature Height	6-40"
Shade Preference	Full sun, part shade, shade
Soil Tolerance	Prefers dry soils that are wet in the spring
Special Uses	Attracts pollinators

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Native Plant Database

We have a large searchable database of plants that are native to the Willamette Valley and other parts of Benton County. View images and filter the list by plant characteristics

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Why Plant Native Plants?

There are so many good reasons to plant native plants!

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A lush green riparian forest with tall red alder trees and a rocky stream running through it.

Riparian Forests

Riparian areas are defined by NRCS as ecosystems that occur along waterways and water bodies. They serve as the transition between aquatic and terrestrial zones.

Wet Prairie

Wet prairies were once a common habitat in the floodplain of the Willamette River. These habitats occur on poorly drained clay soils or shallow soils above bedrock. Seasonal flooding creates anaerobic…