Tall, back of the border perennial. In late summer produces large, dense cymes of purple flowers. Fully Hardy. Prefers full sun, in a moist but well drained soil.
Height 200cm+ Spread 100cm.
3 litre pot.
Middle of the border perennial bred by Piet Oudolf. In late summer produces large, dense cymes of mauve pink flowers. Shorter & bushier than the species. Good for butterflies. Fully hardy. Prefers full sun, in a moist but well drained soil.
Height 120cm Spread 100cm.
2 litre pot.
Now called Ageratina altissima 'Chocolate'.
This cultivar has small white fluffy flowers arranged in rounded, broccoli-sized heads 15cm across atop shiny purple stems typically rising 100 to 150cm tall. Sharp-toothed, lance-shaped to elliptic-oblong leaves (10 to 18cm are chocolate-tinted, thus giving rise to the cultivar name. The species is native to woodlands in the Eastern United States.
Height 100 to 160cm Spread 80 to 100cm.
2 litre pot