How to Grow Mouse-ear Chickweed

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Mouse-ear Chickweed

Cerastium beeringianum

herb

Mouse-ear Chickweed is a low-growing, hairy-leaved herbaceous plant native to alpine and arctic regions. It forms dense mats with small white flowers and fuzzy, mouse-ear-like foliage. This cold-hardy perennial is valued in rock gardens and alpine collections for its ornamental appeal and ability to thrive in challenging conditions.

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Example Mouse-ear Chickweed timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Mouse-ear Chickweed

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Mouse-ear Chickweed

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Mouse-ear Chickweed dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun to partial shade; 4-6 hours of direct sunlight daily
💧
Water: Moderate water needs; drought tolerant once established. Water during dry spells but avoid waterlogging. Prefers drier conditions in winter.
📏
Spacing: 12 inches
📅
Days to maturity: Flowering begins 60-90 days from seed; perennial, flowers year 2 onward
🌱
Planting depth: Surface sow or barely cover seeds; do not bury deeply

Soil

Type: Well-draining, sandy or gravelly soil; tolerates poor, lean soils
pH: 6.0-7.0
Amendments:
Sand or gravel for improved drainage Small amounts of organic matter Perlite or pumice in heavy clay soils

Growing Zones

Find your zone →

Thrives in zones 2-6; best suited to cold climates with cool summers

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b

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Growth Stages

1

Germination

1-2 weeks

Seeds sprout to reveal tiny cotyledons and first true leaves; very small rosette forms

Keep soil consistently moist but not waterlogged; provide cool temperatures (55-65°F); germination may be slow

2

Seedling/Rosette Establishment

4-6 weeks

Fuzzy, mouse-ear-shaped leaves develop in a dense basal rosette; plant remains low and compact

Gradually reduce watering; provide excellent drainage; avoid fertilizing; acclimate to outdoor conditions if starting indoors

3

Vegetative Growth

3-4 months (or overwinter before flowering)

Mat expands horizontally with increasing density of hairy foliage; stems remain low-growing and mat-forming

Minimal fertilizer needed; ensure good air circulation to prevent fungal issues; thin or divide if becoming overcrowded

4

Flowering

6-10 weeks (spring through early summer)

Delicate white flowers (1-2 cm diameter) emerge on short stems above the foliage mat; flowers have notched petals

Deadhead spent flowers to encourage more blooms; reduce watering slightly; avoid high humidity

5

Seed Production & Dormancy

Variable; extends into late summer and fall

Flowers fade and small capsule-type seed pods form; foliage may slow growth in hot weather or go dormant in winter

Allow some flowers to remain for seed collection if desired; reduce water in winter; plant is drought tolerant during dormancy

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Moisture-loving plants (Hostas, Astilbe) Plants requiring rich, heavily amended soils Species susceptible to damping-off fungi in wet conditions

Common Pests

  • Ensure excellent drainage; avoid overhead watering; use sterile seed-starting mix; provide good air circulation

  • Spray with water to dislodge; use insecticidal soap if severe; encourage natural predators

  • Increase humidity slightly; spray with water; use neem oil if necessary; ensure plant is not stressed

  • and

    Remove debris that provides shelter; use copper barriers or slug baits; encourage ground beetles

Uses

🌿

Alpine & Rock Garden Display

Ornamental

Mouse-ear Chickweed is an excellent choice for rock gardens, alpine troughs, and scree gardens where its low-growing mat and delicate white flowers provide year-round interest. Its cold hardiness makes it ideal for northern climates and high-altitude gardens. [source]

💊

Traditional Herbal Remedy

Medicinal

Historically used in European folk medicine as a tea or poultice for respiratory complaints, skin conditions, and minor wounds. Contains saponins and flavonoids that have mild anti-inflammatory properties. [source]

🍳

Edible Garnish & Salads

Culinary

Young leaves are edible and mildly nutritious, with a tender, slightly sweet flavor. Can be used as a delicate garnish or added to fresh salads, though it is not commonly cultivated primarily for culinary purposes. [source]

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Pollinator & Beneficial Insect Support

Wildlife

Small white flowers attract pollinators including bees, butterflies, and other beneficial insects. Provides early season nectar and pollen in alpine and cold-climate gardens. [source]

🏠

Low-Maintenance Ground Cover

Household

Once established in well-draining soil, this plant requires minimal watering, fertilizing, or maintenance. Ideal for gardeners seeking a self-sufficient perennial that suppresses weeds in suitable garden niches. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

For ornamental use: no harvesting needed; plant is enjoyed for foliage and flowers in place. For seeds: allow flowers to fade naturally and collect seed pods when dry (late summer); store in cool, dry place. For medicinal use (if harvested): pick foliage in late spring or early summer when actively growing; use fresh or dry for tea.

Fun Facts

  • 🌱 The common name 'Mouse-ear' refers to the soft, fuzzy texture and rounded shape of the leaves, which resemble tiny mouse ears.
  • 🌱 Cerastium beeringianum is native to the arctic and subarctic regions of North America, including areas of Alaska, Canada, and northern mountain ranges, making it exceptionally cold-hardy.
  • 🌱 The plant is a perennial alpine specialist that has adapted to harsh environments with short growing seasons; it often flowers rapidly to set seed before winter arrives.

Gardening Terms

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