How to Grow Cushion Phlox Red Wings

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Cushion Phlox Red Wings

Phlox subulata 'Red Wings'

flower

Cushion Phlox 'Red Wings' is a compact, low-growing perennial groundcover that forms dense mats of needle-like foliage topped with vibrant red flowers in spring. This cultivar is prized for its brilliant red blooms and ability to cascade over edges or fill rock gardens. It's an easy-to-grow alpine plant that attracts pollinators and provides early season color.

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Example Cushion Phlox Red Wings timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Cushion Phlox Red Wings

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Cushion Phlox Red Wings blooms

    Mid-to-late summer

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Cushion Phlox Red Wings dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6+ hours daily (afternoon shade helpful in zone 8)
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Water: Low to moderate water needs once established. Water moderately during growing season; reduce after flowering. Drought tolerant but performs better with regular moisture during spring growth and blooming.
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Spacing: 12-15 inches
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Days to maturity: Perennial; blooms in year 1-2 from transplants
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Planting depth: Plant crown at soil surface; do not bury

Soil

Type: Well-draining sandy or gravelly loam soil
pH: 6.0-7.0
Amendments:
coarse sand or grit perlite compost

Growing Zones

Find your zone →

Thrives in zones 2-8, with best performance in cooler climates

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a

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Growth Stages

1

Establishment

2-3 weeks

Young transplants developing fine, needle-like foliage in tight rosettes

Keep soil evenly moist until roots establish (2-3 weeks). Mulch lightly with grit rather than organic material to prevent stem rot.

2

Vegetative Growth

3-4 months (fall/winter/early spring)

Plants spreading horizontally, forming dense mats of fine green foliage reaching 4-6 inches tall

Reduce watering as plant establishes. Deadhead spent flowers to encourage bushier growth. Light fertilization in early spring is optional.

3

Flowering

4-6 weeks (typically April-May)

Dense clusters of five-petaled red flowers blooming above the foliage mat, creating a striking red blanket

Deadhead spent flowers to extend bloom and prevent self-seeding if undesired. Water during dry spells. Avoid overhead watering to prevent fungal issues.

4

Post-Bloom

6+ months

Foliage remains ornamental through summer and fall; flowers fade and seeds set if not deadheaded

Cut back lightly if foliage becomes leggy or untidy. Reduce supplemental watering significantly. Improve drainage if plants look stressed in hot, humid weather.

5

Dormancy

2-4 months (varies by zone)

Foliage may take on bronzy or purplish tones in winter; plant appears evergreen but reduced in vitality

No supplemental watering needed. Avoid heavy mulch that traps moisture around crown. Ensure excellent drainage to prevent winter rot.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

plants requiring frequent watering water-logged areas dense shade plants

Common Pests

  • Increase air circulation; spray with water or insecticidal soap if severe. Mites favor hot, dry conditions.

  • Ensure good air circulation; avoid overhead watering. Apply fungicide if widespread; remove affected foliage.

  • Prevent through excellent drainage and reduced watering. Improve soil drainage with sand/grit. Remove infected plants.

  • and

    Hand-pick or use slug baits around plants; copper barriers are also effective.

Uses

🌿

Rock Gardens and Alpine Troughs

Ornamental

Cushion Phlox is a classic alpine plant perfect for rock gardens, raised beds, and alpine troughs where its cascading habit and vibrant red flowers create striking focal points. Its compact size and low-growing habit make it ideal for rocky, well-draining environments. [source]

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Groundcover and Edging

Ornamental

Use 'Red Wings' as a low groundcover along borders, pathways, and sunny slopes. Its dense mat-forming growth smothers weeds and provides a uniform carpet of red spring blooms. [source]

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Cascading Over Walls and Containers

Ornamental

The prostrate growth habit makes this cultivar excellent for tumbling over dry stone walls, retaining walls, and container edges. It softens hardscape features while providing early seasonal color. [source]

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Pollinator Garden

Wildlife

Red Wings attracts bees, butterflies, and other early-season pollinators when few other plants are blooming, making it valuable for spring pollinator support and wildlife gardens. [source]

🏠

Low-Maintenance Xeriscape

Household

Once established, Cushion Phlox requires minimal watering and maintenance, making it ideal for drought-tolerant landscapes, xeriscaping, and water-wise gardens in dry regions. [source]

Harvest Tips

Deadhead spent flowers throughout bloom season by pinching off faded flower clusters. This encourages longer blooming and prevents self-seeding. Flowers are not typically harvested for cutting; the plant is ornamental foliage and bloom display.

Fun Facts

  • 🌱 The genus name Phlox comes from the Greek word for 'flame,' referring to the vibrant flower colors that seem to glow in spring gardens.
  • 🌱 Cushion Phlox is native to the rocky slopes and mountainous regions of eastern North America, where it thrives in thin, well-draining soils that would stress most garden plants.
  • 🌱 'Red Wings' produces its most vibrant red color in cooler spring temperatures and may fade in intense summer heat, though the plant remains evergreen and ornamental year-round.

Gardening Terms

New to gardening? Learn about terms used in this guide:

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