Species Name: Ruellia humilis
Common Name: Wild Petunia
Zone: 4 to 8
Light: Full Sun to Light
Soil Moisture: Medium to
Soil Types: Sand, Loam,
Fertility: Medium to Poor
Bloom Time: late June,
Habit: Wild petunia is a short 12Ó
tall hardy perennial that can withstand the hottest driest conditions.
blue flowers attract numerous pollinator insects. It self sows readily from seed capsules
that catapult the seeds a considerable distance. It commonly is found where there is poor
soil and sparse vegetation
such as rocky outcrops, road cuts, dry open
woodlands and sand plains.
It makes an ideal compact rock garden plant or plant
in hot dry parking lot islands.