erigeron glaucus a low growing, spreading perennial with blue-grey leaves flowering off the beach at porthleven cornwall england

coast sea shore beach vacation ocean flower bay cape terrain cliff rock plant cove sand walkway wave horizon water erigeron glaucus low growing spreading perennial blue-grey leaves flowering off porthleven cornwall england glaucus breeze perennial plant erigeron composite asteraceae compositae full sun low-growing spreading leaves showy lavender-pink semi-double daisy-like flower yellow beach porthleven cornwall