Plant name: Prairie Gentian
Botanical name: Eustoma grandiflorum
Suggested by: Alan D. Bradshaw, Alplains (www.alplains.com)
Virtues: It has late, long bloom period (August and September), spectacular flowers, and great foliage. Can be grown as an annual, biennial, or short-lived perennial.
Flower: Vivid lavender blue with darker eyes.
Foliage: Waxy blue leaves.
Habit: Upright, with several stems per plant and several flowers per stem.
Season: Late summer.
Companions: Delosperma cooperi, D. dyeri—both groundcovers with red
to purple flowers.