Perennials Over 4'H
The very tallest perennials that commonly exceed 4 feet high under most conditions. These very tall, often statement making perennials are well suited to use at the back of the border and in front of medium to large shrubs and taller tree form plants. Some may be suitable for large to very large containers as specimens and thrillers. Growing conditions may affect ultimate size. This list also includes some tropicals/subtropicals that are grown as die-back perennials in zone 8B/9A like Angel's Trumpets, so just keep that in mind if you are in a colder climate.
Large clusters of rich purple flowers sit atop the sturdy stems of this medium sized Ironweed in summer and can last well into fall. A great perennial for butterflies and other pollinators. As the name implies Ironweed is a tough perennial but is well suited to garden culture. Provide good drainage and ample sunlight for best results though we've found that it will tolerate partial sun as well. Item# 10468.