Family: Rubiaceae
Genus: Houstonia (hoos-TOH-nee-uh) (Info)
Species: caerulea (see-ROO-lee-uh) (Info)
Synonym:Hedyotis caerulea
 One vendor has this plant for sale.
5 members have or want this plant for trade. Category:
Alpines and Rock Gardens
Groundcovers
Perennials
Height:
under 6 in. (15 cm)
Spacing:
6-9 in. (15-22 cm)
Hardiness:
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Sun Exposure:
Sun to Partial Shade
Danger:
Unknown - Tell us
Bloom Color:
Light Blue
White/Near White
Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Foliage:
Herbaceous
Other details:
Average Water Needs; Water regularly; do not overwater
Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
Patent Information:
Unknown - Tell us
Propagation Methods:
By dividing the rootball
Direct sow as soon as the ground can be worked
Seed Collecting:
Unknown - Tell us
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