False Goat's Beard 'Astary White'
Species: Astilbe arendsii.
There are astilbe sallow rthe garden...in the damp areas. They tolerate waterloggjng very well. They are herbaceous, so they will need lifting and dividing every few years, but not for another couple as they are all planted one year only.
This one has showy white plumes of flowers on shorter stems from mid to late summer above attractive foliage. Hardy and Perennial. 14X16" sun or partial shade in moist fertile soil.