Filipendula ulmaria is a PERENNIAL growing to 1.2 m (4ft) by 0.4 m (1ft 4in) at a medium rate.It is hardy to zone (UK) 2 and is not frost tender. It is in flower from June to August, and the seeds ripen from August to September. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies, beetles. The plant is self-fertile.It is noted for attracting wildlife.