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.
In late summer and fall, Frostweed produces large flattened clusters of flowers that are used by a variety of pollinators including bees, migrating Monarchs and other butterflies. This is a relatively tall growing rhizomatous native perennial that will develop into a mass of upright stems and flowers. Frostweed, Verbesinca virginica, is typically found growing in moist to periodically dry soils in partly shaded to lightly shaded sites from the Edward's Plateau of west central Texas to Florida and as far north as Missouri and Kentucky. Compared to the very similar species Texas Crownbeard, Verbesina microptera, the Virginia Frostweed has fewer ray flowers (or petals) per flower and is considered to be more reliably cold hardy. Item# 11767