cream England Filipendula ulmaria flower Great Britain meadowsweet natural nature plant summer Sussex white wild canal english Filipendula flowers river water blossom bush bushes gardening healthy herb herbal herbs leaf leaves medication medicinal medicine plants sunshine herbaceous perennial reserve Rosaceae Surrey petals architecture cottages historical homes houses meadow old peaceful quiet row rural stone terrace tranquil trees waterside wiltshire chalk stream stream waterweed astilbe clusters color colored colorful colors colour coloured colourful colours cultivars dense false-goats-beard false-spiraea feathery feathery-plumes flower-clusters foliage herbaceous-flowering-plants hybrids long-blooming perennials pink plume plume-like-flowers plumes profuse profuse-blooms stalks