About
Evergreen alpine or perennial plant forming a low creeping mat or tufts about 15-20cm tall, of tiny evergreen leaves smothered by yellow-eyed, tiny blue star-shaped flowers to 4mm across, in late spring, and intermittently through summer.
About the genus
Houstonia is a diverse genus of plants that may be annual, perennial, or woody. Species are cultivated for their flowers, foliage, or architectural habit and are adapted to various climatic conditions
Growing conditions
SunlightFull sun
Soil typeChalk, Loam, Sand
Soil pHAcid, Neutral
Soil moistureWell-drained, Moist but well-drained
AspectSouth-facing, West-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH6
Plant details
Plant typeAlpine Rockery
HabitTufted, Matforming
FoliageEvergreen
Height0.1-0.5 metres
Spread0.5-1 metres
Time to full height2-5 years
Suggested usesCottage and informal garden, Gravel garden, Patio and container plants, Rock garden
Care notes
CultivationGrow in gritty, humus-rich, sharply-drained, neutral to acid soil in full sun
PruningNo pruning required
PropagationPropagate by division in spring
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free