How to Grow McDaniel's Cushion

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McDaniel's Cushion

Phlox subulata 'McDaniel's Cushion'

flower

McDaniel's Cushion is a compact, low-growing creeping phlox cultivar prized for its vibrant magenta-pink flowers and dense, cushion-like foliage. It forms a tight, spreading mat that reaches only 4-6 inches tall, making it ideal for rock gardens, borders, and ground cover applications. This evergreen perennial blooms prolifically in spring and requires minimal maintenance once established.

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Example McDaniel's Cushion timeline · Pittsburgh, PA (Zone 6b)

  1. Plant McDaniel's Cushion

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First McDaniel's Cushion blooms

    Mid-to-late summer

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact McDaniel's Cushion dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily; tolerates light afternoon shade in hot climates
💧
Water: Moderate water needs; water regularly during establishment and dry spells. Once established, very drought-tolerant. Avoid overwatering and ensure excellent drainage to prevent root rot and fungal issues.
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Spacing: 12 inches
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Days to maturity: Blooms the first year from transplants; takes 2-3 years to form a dense mat
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Planting depth: Plant at soil level; do not bury the crown

Soil

Type: Well-draining sandy to loamy soil
pH: 6.0-7.0
Amendments:
Perlite or coarse sand for drainage Compost for modest fertility Gravel mulch to prevent crown rot

Growing Zones

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Thrives in zones 3-8, with best performance in cooler to moderate climates

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

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Growth Stages

1

Establishment

4-8 weeks

Young transplants developing roots and initial leaf growth; low profile with sparse coverage

Water regularly to establish root system. Avoid fertilizer; it encourages weak, open growth. Mulch lightly around plants, keeping material away from the crown.

2

Vegetative Growth

Spring to early summer (8-12 weeks)

Dense, spreading mat of needle-like foliage begins to fill in; no flowers yet

Continue regular watering during dry spells. Pinch back growth lightly in early summer to encourage bushier form. Monitor drainage to prevent waterlogging.

3

Flowering

4-6 weeks (typically April-May in cooler zones)

Profuse magenta-pink flowers cover the foliage in dense clusters; plant forms attractive cushion-like mound

Deadhead spent flowers to encourage prolonged blooming, though not necessary. Avoid fertilizing during bloom. Ensure good air circulation to prevent fungal issues.

4

Post-Bloom

Summer through fall (3-4 months)

Flowers fade; foliage remains attractive and evergreen; plant may produce secondary blooms in fall

Cut back lightly after main bloom if desired to maintain compact shape. Reduce watering as temperatures cool. Monitor for pests and disease.

5

Winter Dormancy

November-March (4-5 months)

Evergreen foliage persists but may take on bronze or purple tones; minimal growth

Ensure good drainage to prevent ice damage and rot. Do not mulch heavily over the crown. Avoid winter watering in cold climates.

Companion Planting

Plan your garden →

Plant with:

Sedum (stonecrop) Creeping thyme Dianthus (pinks) Candytuft (Iberis) Arabis (rock cress) Lavender Catmint (Nepeta) Creeping germander

Avoid planting near:

Heavy feeders (tomatoes, corn, cabbage) Plants requiring consistently moist soil (astilbe, hosta in wet sites) Tall, dense plants that shade it out

Common Pests

  • Spray with strong water stream; use insecticidal soap or miticide if severe. Ensure adequate humidity and air circulation.

  • Improve air circulation; avoid overhead watering. Apply sulfur dust or fungicide if necessary. Remove affected foliage.

  • and

    Remove by hand, especially in cool, moist spring weather. Use copper tape barriers or slug bait if population is high.

  • and (Phytophthora, Rhizoctonia)

    Ensure excellent drainage and avoid overwatering. Do not mulch the crown. Remove and discard affected plants if rot is severe.

Uses

🏠

Rock Garden & Alpine Display

Household

McDaniel's Cushion is perfect for rock gardens, alpine troughs, and raised beds where its low-growing, spreading habit and vibrant spring blooms create stunning visual impact. Its drought tolerance and preference for well-draining soil make it ideal for xeric landscaping. [source]

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Ground Cover & Border Edging

Household

The dense, cushion-like mat effectively suppresses weeds and creates a neat, colorful edge for borders, pathways, and perennial beds. It stays compact without invasive spreading, making it a low-maintenance ground cover for smaller spaces. [source]

🦋

Pollinator Attraction

Wildlife

The abundant spring flowers attract early-season butterflies, bees, and other pollinators, providing essential nectar when few other plants are blooming. This makes it valuable for supporting pollinator populations in spring gardens. [source]

🏠

Seasonal Color for Containers

Household

McDaniel's Cushion thrives in well-draining pots and containers, offering brilliant spring color on patios and balconies. Its compact habit makes it perfect for alpine troughs, shallow planters, and container gardens. [source]

🎨

Cut Flower Arrangements

Craft

Fresh flowering stems can be cut and used in small, delicate spring floral arrangements and bouquets. The tight clusters of colorful blooms add charm to pressed flower projects and small-scale floral design. [source]

Harvest Tips

McDaniel's Cushion is an ornamental plant not harvested for use. Deadhead flowers during the bloom season (April-May) by pinching or lightly cutting back to encourage extended blooming and maintain shape. Cut stems can be used fresh in small floral arrangements.

Fun Facts

  • 🌱 McDaniel's Cushion was named after and selected by plant breeder B.L. McDaniel, who recognized its superior compact form and flowering abundance compared to wild creeping phlox.
  • 🌱 Creeping phlox (Phlox subulata) has been used in gardens for over 200 years and is native to eastern North America, where it naturally colonizes rocky slopes and open woodlands.
  • 🌱 Despite its delicate appearance, McDaniel's Cushion is extremely cold-hardy and can survive temperatures well below -30°F (-34°C) in winter, making it one of the most cold-tolerant spring-flowering perennials available.

Gardening Terms

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