It blooms from early spring to frost, but flowers are most abundant in late spring. This year I put a species gaura through a heat test, planting a division in a container and placing it on my concrete driveway in Keller, Texas. Gaura is easily propagated. Seeds germinate easily in moist media and reach full size in less than a year. Siskiyou Rare Plants roots 'Siskiyou Pink' cuttings dipped in a liquid indolebutyric acid formula.
Cuttings root easily and root division is also a viable method of vegetative propagation.
I'll keep an eye on mine.