Primula angustifolia, also known as alpine primrose, is a species of flowering plant in the family Primulaceae, native to the Rocky Mountains of the United States. It is commonly found in Colorado and New Mexico.
Primula angustifolia is a dwarf plant, 1 to 7 cm (.39 to 2.75 in) tall. Leaves are lanceolate to oblanceolate, folded slightly inwards and 2–5 cm (.78 to 1.96 in) long. The plant grows as a single stem or in clumps. Flowers are notched, varying in color from pink to lilac to deep purple, with a yellow eye. Flowers can be up to 20 mm in diameter, and can appear too large for the diminutive plant.[1] [2] Plants often range in size, flower number and flower color. White flowered plants are generally found in New Mexico.[3] The plant blooms from June to August.[4]
The plant's distribution is the Rocky Mountains of Colorado and northern New Mexico. It is typically found above the tree-line in tundra habitats and in rocky locations above 3000 m. (9842 ft).
Often long-lived in cultivation, the plant is free-flowering but rarely produces seed. Plants do best when grown in containers under glass, in a rich sandy mix. Plants have done well outdoors in Scotland, grown in troughs.