As much as I am wowed by voluptuous blossoms, I like to champion the strong garden performers which have quieter charm. One whose charm seldom disappoints is an Asian Aster relative called Kalimeris incise ‘Blue Star’. This little number grows 15-18″ tall and 18-24″ wide, and begins its production of 1 1/2″ lavender blue daisies in June, carrying on into autumn (I kid you not.) ‘Blue Star’ forms tidy clumps; it does not run, unlike some of the other Aster relatives that we have tried such as Asteromoea and Aster ageratoides. Use Kalimeris incisa ‘Blue Star’ in the front of the border, paired with other favorites, such as Calamintha nepeta sp nepeta, Persicaria amplexicaulis ‘Firetails’ and Hydrangea paniculata ‘Little Lime’ for an easy long blooming ensemble.
Grow ‘Blue Star’ in full sun in a soil that has good drainage, and it doesn’t hurt to thank this star performer with a liquid fish emulsion fertilizer a few times during summer. It is hardy in zones 5-8.