flowers of a rhubarb plant, rheum rhabarbarum.

agriculture background backyard bloom blooming blossom botany bud cultivate edible farm field floral flower flowering foliage food fresh fruit garden gardening green growing growth harvest head healthy horticultural ingredient leaf medicinal nutritious organic outdoor permaculture pieplant plant poisonous polygonaceae raw rhabarbarum rheum rhubarb seasonal shrub stem vegetable vegetarian vegetation vitamins