Emerald Blue Creeping Phlox Phlox subulata 'Emerald Blue' #2

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Plant a dazzling carpet of color! Beautiful masses of deep blue flowers top creeping stems and create an attractive groundcover or accent in a rock garden. Excellent bank cover. More heat tolerant than garden phlox. An herbaceous perennial.

Prefers moist, well-drained loamy or sandy soils, with a neutral pH. Shelter from harsh afternoon sun in hot summer regions. Water deeply, regularly in first growing season to establish root system. Once established, reduce frequency; tolerates mild drought. Prune spent blooms for a tidy appearance. Fertilize in early spring.


Average Size at Maturity Moderate growing; reaches 6 in. tall, forming a dense mat up to 3 ft. wide.
Bloom Time Spring into Summer
Design Ideas It's rare to find such a vigorous source of blue in a ground-hugging plant for rock gardens. A notorious dweller on edges of rocky embankments, where it spreads over curbs and short retaining walls, or amidst rocky outcroppings. And ideal cover plant for difficult edges of dry streambeds or rock waterfalls. Enjoys the fast drainage of elevated spots and thrives in the nooks and crannies of dry stone retaining walls. It is equally at home in the front of a traditional flower border or planted along the edges of flagstone walkways.
Deciduous/ Evergreen Herbaceous
Flower Attribute Flowers for Cutting, Showy Flowers
Flower Color Blue
Foliage Color Green
Garden Style Cottage, Rustic
Growth Habit Mat
Growth Rate Moderate
Landscape Use Border, Erosion Control, Firescaping/Fire Wise, Mass Planting, Rock Garden, Woodland Garden, Cutting Garden, Hillside, Urban Garden, Ground Cover
Light Needs Full sun
Soil Needs Flower & Rose Food
Special Feature Attracts Butterflies, Extreme Cold Hardiness, Naturalizes Well, North American Native Selection, Waterwise, Pet Friendly, Tolerates Urban Pollution
Water Needs Moderate
Watering Needs Water regularly - weekly, or more often in extreme heat.