Plant Number: 1.279.010   

Mountain Bluets
Houstonia caerulea ‘Millard’s Variety’


(Also known as Hedyotis) This adorable little plant forms a low creeping mat of tiny green leaves, smothered by tiny blue star flowers in late spring. This is an easy rock garden plant for acidic conditions, where it will even self-sow. Also perfect for between flagstones and as a groundcover. Prefers evenly moist soil and acidic conditions. Beautiful with spring-blooming bulbs of all sorts, especially when used to carpet below daffodils or tulips. Easily divided in spring or early fall by digging up the clump and ripping apart into small pieces.

Zone 3 to Zone 9

Conditions     Appearance    
Sun Exposure
  Full Sun
  Partial Shade

Soil Type

Soil pH

Soil Moisture

Care Level

Foot Traffic

Rate of Spread
Flower Colour
  Light Blue

Blooming Time
  Early Summer
  Late Spring
  Mid Spring

Foliage Color
  Deep Green

Plant Uses & Characteristics
  Accent: Good Texture/Form
  Alpine & Rock
  Ground Cover
  Wild Flower

Flower Head Size
  Very Small

   10-15 cm
   4-6 inches

   20-30 cm
   8-12 inches