Phacelia californica.

California Phacelia: CA Native herbaceous perennial that grows in meadows and bluffs along the coast ranges. 12-18" tall x 24" wide with large coils of lavender fiddle neck flowers from March to September. Attracts hummingbirds, bees and butterflies. Important nectar source for the endangered Mission Blue butterfly. Full sun. Low water. Deer resistant. Heat, clay and drought tolerant once established.