How to Grow Achillea Moonshine

Achillea Moonshine

Achillea × 'Moonshine'

flower

Achillea Moonshine is a compact hybrid yarrow with bright, pale yellow flower clusters and feathery, finely divided silvery-green foliage. This award-winning cultivar is valued for its long blooming season, drought tolerance, and low-maintenance growth habit. It's an excellent choice for borders, rock gardens, and pollinator-friendly landscapes.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily (at least 6 hours required for optimal flowering and compact form)
💧
Water: Low water needs once established. Water moderately during growing season; drought tolerant. Allow soil to dry between waterings. Reduce watering in winter. Overwatering encourages weak growth and fungal issues.
📏
Spacing: 18 inches
📅
Days to maturity: Blooms in first year from transplants; flowers from early summer through fall (60-90 days from planting to first flowers)
🌱
Planting depth: Plant crowns at soil level or slightly above; do not bury the crown

Soil

Type: Well-draining loamy or sandy soil
pH: 6.0-7.0
Amendments:
Perlite or sand for drainage Compost for organic matter Avoid excessive peat moss or water-retentive amendments

Growing Zones

Find your zone →

Thrives in USDA zones 3-9; performs best in zones 4-8

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

Sign up to see your zone highlighted.

Growth Stages

1

Establishment

2-4 weeks

Young transplants with emerging feathery foliage; plant is establishing root system.

Water regularly to establish roots. Mulch lightly around base. Remove any early flower buds to encourage stronger root development if planting in spring.

2

Vegetative Growth

3-6 weeks

Bushy mounds of silvery-green, finely divided foliage growing 18-24 inches tall. Foliage is the main focus.

Water deeply but infrequently. Avoid overhead watering to prevent disease. Allow soil to dry between waterings. No fertilizer needed; poor soil is acceptable.

3

Flowering

8-12 weeks (early summer to fall frost)

Bright pale yellow flat-topped flower clusters (corymbs) appear atop the stems. Flowers attract pollinators and are long-lasting.

Deadhead spent flowers to encourage continuous blooming. Do not fertilize; promotes excessive foliage at expense of flowers. Water only if prolonged drought occurs.

4

Senescence

Late fall through early spring

Flower production slows as temperatures cool in fall. Foliage may take on bronzy tones in cool weather.

Leave seedheads for winter interest and wildlife. Allow plant to dry back naturally. Cut back dead foliage in early spring before new growth emerges.

5

Winter Dormancy

3-4 months

Plant dies back completely in cold climates; crown remains dormant underground protected by soil.

No watering needed. Light mulch (1-2 inches) can provide crown protection in zones 3-4. Remove mulch in early spring.

Common Pests

  • Improve air circulation; avoid overhead watering. Remove affected foliage. Apply neem oil or sulfur fungicide if severe. Choose resistant cultivars.

  • Spray with strong water stream to dislodge. Use insecticidal soap or neem oil. Encourage natural predators like ladybugs.

  • Increase humidity and air circulation. Spray with water. Apply miticide or neem oil if infestation is severe.

  • Ensure excellent drainage; avoid overwatering. Remove and dispose of affected plants. Improve soil drainage with amendments.

  • Remove infected foliage. Avoid overhead watering. Provide good air circulation. Apply copper or sulfur fungicides if needed.

Uses

🍳

Culinary Herb & Tea

Culinary

Yarrow flowers and leaves have been traditionally used to make herbal tea with mild bitter and slightly peppery notes. Used historically to flavor beers and meads before hops became standard. [source]

💊

Traditional Herbal Medicine

Medicinal

Achillea has a long history in traditional medicine for supporting wound healing, digestion, and immune function. Contains compounds like azulene and flavonoids that have been studied for anti-inflammatory properties. [source]

🏠

Dried Flowers & Arrangements

Household

Excellent for fresh and dried flower arrangements, wreaths, and dried flower crafts. Maintains bright yellow color well when dried and adds texture to any floral design. [source]

🦋

Pollinator Nectar Plant

Wildlife

Highly attractive to bees, butterflies, and other beneficial insects. Provides nectar and pollen throughout the long blooming season, making it essential for pollinator gardens. [source]

🎨

Dye Plant

Craft

Yarrow flowers have been historically used to produce yellow and green dyes for natural fabric dyeing. Different plant parts and processing methods yield varying shades. [source]

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

Harvest Tips

Achillea Moonshine is primarily grown as an ornamental flower. Cut flowers for arrangements when flat flower clusters are fully open and bright yellow. Cut stems in early morning. Flowers dry beautifully for dried arrangements—harvest when fully open and hang upside down in a cool, dry location for 2-3 weeks. Foliage can also be harvested for drying.

Fun Facts

  • 🌱 Achillea Moonshine received the Royal Horticultural Society's Award of Garden Merit, recognizing it as an outstanding garden plant for reliability, disease resistance, and ornamental value.
  • 🌱 The genus Achillea is named after Achilles, the hero of Greek mythology, who allegedly used yarrow to heal his soldiers' wounds during the Trojan War—giving yarrow the common name 'Soldier's Woundwort.'
  • 🌱 Unlike many other achillea cultivars, Moonshine produces sterile flowers that rarely set seed, meaning it blooms continuously throughout the season without expending energy on seed production, making it exceptionally long-flowering.

Want personalized planting timelines?

Sign up to get frost dates, task lists, and more for your zone.

Get started free