Houstonia caerulea

Bluets, Azure Bluet, Quaker Ladies

Family: Rubiaceae Madder


Type Perennial
USDA Hardiness range 7A - 8B
Exposure Full shade to partial shade or partial sun
Bloom color Blue, purple, white
Bloom time Late Spring to Early Fall
Water needs Moist
Landscape uses Alpine garden, border, ground cover, rock garden, woodland garden
Height 6" to 8" / 15cm to 20cm
Spread n/a
Leaf color Green
Fruit color n/a
Soil pH requirements Neutral
Soil type Sandy, loamy
Form Upright or erect
Attributes and features Attractive foilage, native to North America