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.
This native perennial Hibiscus boasts large 6-8" wide typically white but occassionally pink flowers with a dark burgundy eye. The Crimson-Eyed Rosemallow, Hibiscus moscheutos, is common in moist and wet areas as the name implies but is tolerant of average moist garden soils but may require extra moisture during dry spells. This is a vigorous and hardy native perennial that can reach 5-7' high but is more commonly found at 4'. The foliage may be used as a butterfly caterpillar host by Hairstreaks, Blues, Coppers, and others. Hibiscus moscheutos is one of the main species used in breeding of the large dinner plate-sized Hardy or Perennial Hibiscus cultivars. Item# 9399