Prefers moist, organic soil
24 to 36 inches
Zone 4. Hardy native. Relative of Cardinal Flower.
Mixed borders, native plantings, cut flowers
These perform best in a moist organic soil. Frequent division will increase vigor and longevity.
This is a very showy native prairie species. It is only remotely related to the annual trailing lobelia which is much better known. It is more closely related to Cardinal Flower (Lobelia cardinalis). The late summer flowering period makes it a useful addition to the mixed border. It will also naturalize well in the right conditions. The plant forms a compact rosette with flower stalks reaching a height of 2 to 3 feet. The spiked flowers are a beautiful shade of medium blue and make a nice addition to bouquets. I also have a white form.