helianthus annuus sunflowers produce fully double flowers on sturdy, tall stems in november. berlin, germany.

agriculture helianthus sunflowers background decoration sunflower beautiful undefined november blooming colorful honeybee produce flowers germany blossom natural annuus double sturdy berlin plants common annual beauty botany bright floral flower garden leaves nature season family yellow fully stems large genus bloom color flora fresh green plant sunny wasps tall forb gold leaf sky sun