How to Grow Pewter Lace Cirrus

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Pewter Lace Cirrus

Senecio cineraria 'Pewter Lace Cirrus'

shrub

Pewter Lace Cirrus is a compact, ornamental foliage shrub prized for its finely dissected, silvery-white leaves that create an airy, lace-like texture. This tender perennial is typically grown as an annual in colder climates and serves as an excellent accent plant in containers, borders, and mixed plantings. The delicate foliage provides striking contrast to dark-leaved or brightly colored companion plants.

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Example Pewter Lace Cirrus timeline · Pittsburgh, PA (Zone 6b)

Plant Pewter Lace Cirrus
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Pewter Lace Cirrus
Around May 17

≈ 30 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Pewter Lace Cirrus dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily; tolerates light afternoon shade in very hot climates

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Water: Moderate; allow soil to dry between waterings. Reduce watering in winter. Avoid waterlogging, which causes root rot.

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Spacing: 12-18 inches

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Days to maturity: 30-60 days to ornamental maturity

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Planting depth: Surface sowing or 1/8 inch; seeds need light to germinate

Soil

Type: Well-draining sandy loam or potting soil

pH: 6.0-7.0

Amendments:

Perlite Coarse sand Compost

Growing Zones

Find your zone →

Thrives in zones 9b-11; grown as an annual in cooler zones

9b 10a 10b 11a 11b

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Growth Stages

Seedling

2-3 weeks

Tiny plants with first true leaves emerging; very delicate and susceptible to damping off.

Keep soil moist but not waterlogged; provide bright light; ensure good air circulation. Start seeds indoors 8-10 weeks before last frost.

Vegetative Growth

4-6 weeks

Rapid expansion of finely divided foliage; plant develops bushy form with characteristic silvery-white coloring.

Maintain consistent moisture; pinch growing tips to encourage branching. Begin hardening off 1-2 weeks before transplanting outdoors.

Establishment

2-3 weeks

Plant reaches full size with mature dissected foliage creating full lace-like appearance; growth slows.

Reduce watering frequency; allow soil to dry slightly between waterings. Deadhead any flowers to maintain foliage focus.

Mature Flowering

Throughout growing season if allowed

Small, inconspicuous pale yellow daisy-like flowers appear above foliage; not ornamentally significant.

Remove flower buds or spent flowers to maintain neat appearance and redirect energy to foliage. Optional.

Decline (Cold)

Variable; depends on first frost date

Foliage loses vigor and color when temperatures drop below 50°F; plant deteriorates in frost.

In zones 9-11, reduce watering and allow dormancy or bring containers indoors. In colder zones, treat as annual and replace seasonally.

Companion Planting

Plan your garden →

Plant with:

Purple Heart Begonias Impatiens Coleus Salvia Geraniums Sweet Potato Vine Marigolds

Avoid planting near:

Plants requiring consistently moist soil Frost-tender tropicals competing for space Very tall plants that shade it

Common Pests

Spray with insecticidal soap or neem oil; increase air circulation; use yellow sticky traps
Mist foliage regularly; spray with miticide or insecticidal soap; maintain humidity
Remove by hand with alcohol-soaked cotton swab; spray with neem oil or insecticidal soap
Ensure good air circulation; avoid overhead watering; apply sulfur dust or fungicide if necessary

Uses

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Container & Bedding Accent

Household

Pewter Lace Cirrus is ideal as a filler or thriller in container gardens, adding silvery texture and contrast to mixed plantings. Its fine foliage creates an elegant, sophisticated look in outdoor displays. [source]

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Fresh Floral Arrangements

Craft

The feathery, silvery foliage is beautiful in cut arrangements, complementing colorful flowers and adding texture and airiness to bouquets. [source]

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Garden Design Contrast

Household

Use as a foil for dark-foliaged or brightly colored plants; the silvery tone brightens shaded areas and provides visual rest between vibrant plantings. [source]

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Houseplant or Tender Perennial

Household

In cooler climates, grow as an annual houseplant on a bright windowsill, or maintain in a greenhouse over winter and replant outdoors seasonally. [source]

Harvest Tips

This is an ornamental foliage plant, not harvested in traditional sense. Pinch stems regularly to maintain compact form and promote bushiness. Cuttings can be taken year-round for propagation; root in moist sand or perlite under bright light.

Fun Facts

🌱 Senecio cineraria has been used in traditional Mediterranean gardens for centuries and is sometimes called 'Dusty Miller,' though true Dusty Miller is Artemisia stelleriana.
🌱 The silvery coloration comes from tiny hairs on the leaf surface that reflect light and reduce water loss—an adaptation to bright, dry conditions.
🌱 Pewter Lace Cirrus is a vegetatively propagated cultivar, meaning all plants are genetically identical clones, ensuring consistent foliage texture and form.

Gardening Terms

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

Annual Damping Off Deadhead Full Sun Hardening Off Perennial Transplant True Leaves

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