These taller perennials usually remain in the 3 to 4 feet high range under most conditions. Use them behind and among low to medium height growing perennials, as specimen plants, near the middle to the back of border, in front of medium and large shrubs and very tall perennials, and around larger tree form plants. Some of these will make nice container specimens and when used in combinations for large and very large containers. Growing conditions may affect the plant's ultimate size. This list may also include some tropicals that are grown as die-back perennials in zone 8B so just keep that in mind if you are in a colder climate.
Pinkish-purple, rarely white, foxglove-like flowers are produced singly and in small clusters beginning in midsummer and continuing into fall. The flowers attract bees and other pollinators and the plant itself serves as a caterpillar host plant for Buckeye Butterflies. Purple False Foxglove, Agalinis fasciculata, develops into a generally single-stemmed, loosely branching upright growing plant with fine deep green foliage. This native annual is common along the Gulf Coast and southern East Coast and as far north as southern Missouri, Kentucky, and Virginia. This excellent summer flowering native may only be an annual but it produces copious amounts of tiny seeds to help ensure its return the following season. Interestingly, Purple False Foxglove is a hemi-parasite (it can be grown alone in a container and so this does not seem to be a requirement) on herbaceous plants and grasses though it does not seem to do its neighbors any real harm. Item# 11789