Sorbaria sorbifolia

False spiraea is the oldest and most common of the Sorbaria genus grown in Finland. Growing to 1,5m, it requires little attention and grows happily almost anywhere, fulfilling a useful role as a background or fill-in shrub which can be severely cut back, when necessary to ground level. It spreads through underground rhizomes and suckers. Root cuttings thrown on rubbish heaps can develop into dense growths which are difficult to eradicate.