Verbena Bonariensis
Perennial
Purple
20cm pot
 
Verbena bonariensis has tall, narrow, sparsely-leafed stems on top of which flattened heads of bright purple flowers appear in late-summer. It’s perfect for bringing height to an ornamental border and also works well in prairie-style planting schemes with ornamental grasses. It’s a superb butterfly plant, rivalling even buddleia.
 
Grow Verbena bonariensis in moist but well-drained soil in full sun. Leave dead stalks to provide winter interest and mulch annually with well-rotted manure or compost.