Emerald Blue Creeping Phlox

Phlox subulata ‘Blue Emerald’ (Creeping Phlox)

Phlox subulata ‘Emerald Blue’, commonly known as Emerald Blue Creeping Phlox, is a low-growing, evergreen perennial cherished for its delicate lavender-blue blooms. This variety forms a dense, mat-like ground cover, making it ideal for rock gardens, slopes, and borders. The star-shaped flowers bloom profusely in mid to late spring, creating a stunning carpet of color that lasts for weeks. Its needle-like, dark green foliage remains attractive year-round, adding texture and interest even when the plant is not in bloom.

This hardy perennial grows to a height of 4–6 inches and spreads up to 24 inches wide, making it perfect for filling gaps in gardens or cascading over walls. Thriving in USDA zones 3–9, Emerald Blue Creeping Phlox is drought-tolerant once established and adapts well to sandy or rocky soils. Its ability to attract pollinators like butterflies and its resistance to deer make it a practical and eco-friendly choice for gardeners.

Care Instructions

• Light Requirements: Prefers full sun but tolerates light shade, especially in warmer climates.
• Soil Preferences: Thrives in well-drained, sandy, or gravelly soils. Avoid waterlogged areas.
• Watering Needs: Water regularly during the first growing season to establish roots. Once established, it requires minimal watering.
• Fertilization: Apply a light, balanced fertilizer in early spring to encourage healthy growth and blooms.
• Pruning Guidelines: Shear back after flowering to maintain a neat appearance and promote new foliage.
• Spacing: Space plants 18–24 inches apart to allow for proper air circulation and growth.

Phlox subulata ‘Emerald Blue’ is a versatile and reliable addition to any garden. Its vibrant blooms, evergreen foliage, and low-maintenance nature make it a favorite for creating colorful ground cover or enhancing rockeries and slopes. With proper care, this perennial will provide years of beauty and charm to your outdoor spaces.