How to Grow Catmint Snowflake

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Catmint Snowflake

Nepeta × faassenii 'Snowflake'

flower

Catmint Snowflake is a compact, herbaceous perennial cultivar known for its pure white flower spikes and silvery-green foliage. It's a sterile hybrid that blooms prolifically throughout the growing season without self-seeding. This low-maintenance plant attracts pollinators and adds bright color to borders, rock gardens, and containers.

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Example Catmint Snowflake timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Catmint Snowflake

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Catmint Snowflake blooms

    Around Apr 25

    ≈ 8 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Catmint Snowflake dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily; tolerates light afternoon shade in hot climates
💧
Water: Low water needs once established; water regularly during first growing season to establish deep roots. Drought tolerant in mature plants. Water at soil level; avoid wetting foliage.
📏
Spacing: 12-18 inches
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Days to maturity: Blooms begin 8-12 weeks from transplant; flowers for 12-16 weeks
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Planting depth: Transplants at same depth as nursery pot; seeds need light and should be surface-sown

Soil

Type: Well-draining loamy or sandy soil
pH: 6.0-7.5
Amendments:
perlite or coarse sand for drainage compost for fertility gravel in heavy clay soils

Growing Zones

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Thrives in USDA zones 3-9, with best performance in zones 4-8

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a

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Growth Stages

1

Seedling/Establishment

2-4 weeks

Small rosette of silvery-green leaves emerges; plant develops root system

Keep soil consistently moist but not waterlogged. Provide bright light. Thin seedlings to proper spacing.

2

Vegetative Growth

4-8 weeks

Plant develops bushy mound of soft, aromatic gray-green foliage; no flowers yet

Water moderately. Pinch back stem tips if you want denser branching. Begin reducing water to encourage hardiness.

3

Early Flowering

1-2 weeks

First white flower spikes appear above the foliage canopy

Maintain moderate watering. Light deadheading encourages more blooms. Begin fertilizing lightly if desired.

4

Peak Bloom

6-12 weeks

Prolific white flower spikes cover the plant in bright blooms; full fragrant display

Deadhead spent flowers regularly to encourage continuous blooming. Reduce water to minimal levels; drought stress promotes more flowers. No fertilizer needed.

5

Late Season/Winter Dormancy

Variable by zone; typically 4-8 weeks before hard freeze

Flower production slows; foliage remains silvery but may fade; plant prepares for dormancy

Stop deadheading to allow plant to set seeds for wildlife. Cut back in fall or early spring to 4-6 inches. Provide excellent drainage to prevent winter rot.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Plants requiring consistently moist soil (hostas, astilbes) Shade-loving plants Humidity-loving species

Common Pests

  • Increase humidity by misting; use insecticidal soap or neem oil; remove heavily infested leaves

  • Improve air circulation; avoid overhead watering; apply sulfur dust or fungicide if severe; resistant cultivar already less susceptible

  • Spray with insecticidal soap; use yellow sticky traps; encourage beneficial insects

Uses

🍳

Herbal Tea & Fresh Cooking

Culinary

Catmint leaves and flowers can be brewed fresh or dried for a mild, slightly minty herbal tea. The delicate white flowers are edible and add ornamental interest to salads and beverages. [source]

💊

Traditional Herbal Remedy

Medicinal

Catmint has been used in traditional medicine to soothe digestive upset, mild anxiety, and sleep issues. Infusions may help reduce fevers and support respiratory comfort. [source]

🏠

Aromatic Dried Flowers

Household

Dried white flowers and stems retain fragrance and can be used in dried arrangements, potpourri, sachets, and herbal crafts to freshen closets and rooms. [source]

🦋

Pollinator Magnet

Wildlife

Catmint Snowflake's prolific blooms attract bees, hoverflies, and butterflies throughout the season, making it excellent for pollinator gardens and supporting beneficial insects. [source]

🎨

Garden Design & Ornamentation

Craft

The pure white flower spikes and silvery foliage provide bright focal points and textural contrast in borders, rock gardens, containers, and cottage gardens from early summer through fall. [source]

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

Harvest Tips

Catmint is not typically harvested as a crop. Deadhead spent white flowers by pinching or cutting just below the flower spike to encourage continuous blooming throughout summer. Cut back the entire plant to 4-6 inches in fall or early spring. Snip foliage anytime for fresh herbal tea or flower arrangements.

Fun Facts

  • 🌱 Catmint Snowflake is a sterile hybrid (Nepeta × faassenii), meaning it cannot produce fertile seeds—this actually extends its blooming season since the plant keeps flowering instead of setting seeds.
  • 🌱 The silvery-green foliage is aromatic when brushed or crushed, releasing a pleasant, herbal fragrance that deters some garden pests naturally.
  • 🌱 Despite being called 'Catmint,' this cultivar is less attractive to cats than common catnip (Nepeta cataria), though some cats still enjoy rolling in it.

Gardening Terms

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

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