Phlox Subulata 'Amazing Grace'

Amazing Grace Moss Phlox

Phlox subulata ‘Amazing Grace’ is a low, mat-forming herbaceous perennial creeping phlox grown for its carpet of white spring flowers with vivid pink, magenta, or reddish-purple eyes. The blooms cover narrow, needle-like evergreen to semi-evergreen foliage in mid spring, creating a bright groundcover for sunny slopes, rock gardens, wall edges, borders, and pathways. Darwin Perennials describes the flowers as white with a dash of red in the center, maturing to pale pink.

Type: Herbaceous perennial groundcover
Mature Size: 12–24 in. wide x 4–6 in. tall
USDA Zones: 3a–9b
Form: Low, spreading, mat-forming groundcover
Light: Full sun to part sun
Soil / Water: Average to moderately fertile, well-drained soil; average moisture once established, but avoid wet, poorly drained soil
Bloom Time / Length: Mid spring to late spring; about 3–6 weeks
Wildlife: Attracts butterflies, bees, hummingbird moths, and other long-tongued pollinators

Features & Landscape Uses: White flowers with pink-red eyes; evergreen needle-like foliage; dense spreading habit; excellent for rock gardens, slopes, edging, retaining walls, between stones, sunny banks, mass plantings, and cascading over borders. The species Phlox subulata is described by Missouri Botanical Garden as a vigorous, spreading, mat-forming, sun-loving phlox that grows about 6 in. tall and spreads to about 24 in. wide.

Care: Plant in full sun with well-drained soil. Shear lightly after flowering to keep the mat dense and tidy. Avoid overly rich or wet soil, which can reduce vigor. Water during establishment and during extended drought. Divide or replant sections if the center becomes thin over time.

Plant type

Groundcover, Perennial

Height

4-6"

Width

12-24'

Hardiness zones

3–9

Sunlight

Full Sun, Partial Shade

Growth rate

Moderate

Bloom time

Early Summer, Late Spring, Summer

Flower color

White

Leaf color

Dark Green

Fall color

Dark Green

Attracts

Bees, Butterflies, Hummingbirds

Soil

Humus rich, Moist well-drained

Landscape use

Groundcover

Shape

Mat forming

Fragrant

Yes

Drought tolerant

No