How to Grow Silver Spreader

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Silver Spreader

Artemisia stelleriana

shrub

Silver Spreader is a low-growing, mat-forming perennial shrub prized for its silvery-white, finely divided foliage. It produces small yellow flowers in summer but is primarily grown for its attractive, feathery leaves that create excellent ground cover. This hardy plant is drought-tolerant once established and thrives in coastal and alpine environments.

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Example Silver Spreader timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Silver Spreader

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Silver Spreader

    Around Jul 16

    ≈ 90 days after planting

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

Growing Conditions

☀️
Sun: Full sun, 6+ hours daily; tolerates partial shade but foliage may be less silvery
💧
Water: Low water needs once established; drought-tolerant. Water moderately during establishment period (first season). Reduce watering significantly after year one. Avoid overwatering and waterlogged soil, which causes root rot.
📏
Spacing: 12 inches
📅
Days to maturity: 90-180 days to full ground cover establishment
🌱
Planting depth: Plant transplants at soil level; shallow planting. Do not bury crown of plant.

Soil

Type: Well-draining sandy or gravelly soil
pH: 6.5-7.5
Amendments:
Coarse sand Gravel or perlite Avoid rich compost or heavy organic matter

Growing Zones

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Thrives in zones 3-9, particularly in cooler climates and coastal regions

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

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Growth Stages

1

Establishment

4-8 weeks

Young transplants developing shallow root systems. Foliage begins to spread horizontally along the soil surface.

Water moderately 2-3 times weekly. Ensure excellent drainage. Mulch lightly around base (not touching crown) to retain moisture while roots establish.

2

Vegetative Spread

8-16 weeks

Plant develops spreading stems and increasingly silvery, feathery foliage. Forms low mats 6-12 inches tall.

Reduce watering frequency. Apply balanced slow-release fertilizer sparingly in early spring. Reduce nitrogen to prevent excessive soft growth.

3

Maturation

Ongoing after 4-6 months

Dense mat of silvery foliage fills designated space. Plant is fully established and highly drought-tolerant.

Water only during extreme drought. No supplemental fertilizing needed. Plant is now self-sufficient in most climates.

4

Flowering

4-8 weeks

Small, inconspicuous yellow button-like flowers appear on short stems above the foliage in mid-to-late summer.

Deadhead flowers if desired to focus energy on foliage. Flowering is not the main ornamental feature.

5

Dormancy

8-12 weeks

In cooler zones, foliage may bronze slightly in winter but remains evergreen. Plant goes semi-dormant.

Reduce all supplemental water. No fertilizing. Plant survives on winter precipitation alone in most zones.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Water-loving plants (Hostas, Ferns, Primrose) Plants requiring frequent watering High-nitrogen fertilizer-dependent plants Shade-tolerant shade plants Clay soil-adapted plants

Common Pests

  • Prevent through excellent drainage and reduced watering. Remove affected plants. Do not mulch directly against crown.

  • Improve air circulation. Reduce overhead watering. Apply sulfur powder or neem oil if severe. Prune affected foliage.

  • Increase humidity slightly; spray foliage with water. Apply miticide if infestation is severe. Remove heavily infested stems.

  • and

    Remove by hand. Use copper tape barriers around planting area. Apply iron phosphate-based bait if needed.

Uses

🏠

Ornamental ground cover

Household

Creates attractive silvery mats in rock gardens, containers, and border edging. Excellent for coastal landscapes, xeriscaping, and alpine gardens. Its fine texture contrasts beautifully with darker foliage plants. [source]

🏠

Dried floral arrangements

Household

Silvery foliage dries beautifully and retains color well, making it ideal for dried bouquets, wreaths, and craft arrangements. Cut stems in late summer for best color preservation. [source]

💊

Traditional herbal use

Medicinal

Artemisia species have been used in traditional medicine for digestive and antimicrobial purposes. However, Silver Spreader (A. stelleriana) is primarily ornamental; other Artemisia species are more commonly used medicinally. [source]

🦋

Pollinator and beneficial insect support

Wildlife

Summer flowers attract bees and other pollinators. The dense foliage provides shelter and nesting habitat for beneficial insects. Creates wildlife-friendly xeriscape environments. [source]

🎨

Textile dyeing and basketry

Craft

Artemisia foliage can be used to create natural dyes, producing yellow and olive tones. Dried stems are occasionally used in basketry and craft projects. [source]

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

Harvest Tips

Silver Spreader is not harvested for food or typical culinary use. For ornamental stems or dried arrangements, cut sprigs in late summer before or just after flowering, bunching and hanging upside-down in a cool, dry location. Foliage dries well and retains its silvery color.

Fun Facts

  • 🌱 Silver Spreader is native to northeastern Asia and coastal Siberia, explaining its remarkable cold-hardiness and salt-spray tolerance, making it ideal for seaside gardens.
  • 🌱 The silvery appearance of the foliage comes from fine hairs (trichomes) that cover the leaf surface, reflecting light and reducing water loss—a natural adaptation to harsh coastal and alpine environments.
  • 🌱 Artemisia stelleriana is also known as 'Old Woman' or 'Beach Wormwood' and has been used historically as a coastal erosion control plant due to its spreading habit and ability to stabilize sandy, saline soils.

Gardening Terms

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