star d dahlia flowers by name midnight star, photographed against a clear blue sky at the rhs wisley garden, surrey uk

asteraceae autumn beautiful beauty bloom blossom blue botany bright clear closeup color colorful colourful compositae copy dahlia dahlias daydream flora floral flower flowers garden head heads horticulture late name natural nature october perennial petal photographed pink plant rhs sky space stunning summer surrey texture textured wisley woking yellow