Mountain Garland (Clarkia unguiculata)

Mountain or Elegant Clarkia (Clarkia unguiculata) is an annual wildflower in the Evening-Primrose family (Onagraceae). It is endemic (limited) to California, but is often sold in wildflower seed mixes throughout the country. Elegant clarkia has tall, thin stems, narrow leaves, and four spade-shaped petals in various shades of pink. Butterflies, moths, and bees are attracted to its flowers. It blooms in summer, when many wildflowers are finished for the year.

Another popular name is woodland clarkia, and its natural habitat is indeed open woodlands. It usually is found growing in oak woodlands or mixed evergreen forest, with native grasses and other wildflowers that appreciate part shade. Sow seeds in fall and let the rain do the rest. Allow to self-sow in fall before cutting back dead stocks. Grow this clarkia in the middle or back of a flower bed where its tall, whimsical flowers make a charming backdrop. Or create a mini-meadow under an oak tree with native bunchgrasses, wild onion, white globe lily, and purple chinese houses.

Description from Calscape