Meadowsweet is a tall, hairless perennial wild plant, native to Europe, a member of the Rose family (Rosaceae). Its flowers are used by some wine growers as a plant-based spray to combat downy mildew (peronospera). Meadowsweet is found in marshes, fens, swamps, wet meadows and woods. It flowers between June and September (N hemisphere). Flowers form in dense clusters and have a creamy, fragrant aroma. Each meadowsweet flower has 5 to 6 petals, 2–5mm long. 

Other names: Filipendula ulmaria (botanical). | La reine des près (French).

Bibliography

Pierre Masson,. A Biodynamic Manual (2nd edition 2014, Floris), p.129.

Richard Fitter, Alastair Fitter, & Marjorie Blamey, The Wild Flowers of Britain and Northern Europe (Collins, 1993).