How to Grow New York Aster 'Crimson Brocade'

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New York Aster 'Crimson Brocade'

Symphyotrichum novi-belgii 'Crimson Brocade'

flower

A compact, semi-double flowering aster cultivar producing rich crimson-red blooms with a distinctive brocade texture. This fall-blooming perennial reaches 18-24 inches tall and creates a dramatic display of double flowers in autumn gardens. 'Crimson Brocade' is a reliable performer for borders, containers, and cutting gardens.

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Example New York Aster 'Crimson Brocade' timeline · Pittsburgh, PA (Zone 6b)

  1. Plant New York Aster 'Crimson Brocade'

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First New York Aster 'Crimson Brocade' blooms

    Around Jul 16

    ≈ 90 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact New York Aster 'Crimson Brocade' dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily (morning sun preferred to reduce fungal issues)
💧
Water: Moderate, consistent moisture; water at soil level to keep foliage dry. Allow soil to dry slightly between waterings. Reduce watering in late season to promote flowering.
📏
Spacing: 18 inches
📅
Days to maturity: 90-120 days from transplant to first flowers
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Planting depth: Surface sow seeds or plant transplants at same depth as container

Soil

Type: Well-draining loamy soil with moderate fertility
pH: 6.0-7.0
Amendments:
Compost or well-rotted organic matter Perlite or coarse sand for drainage improvement Balanced slow-release fertilizer at planting

Growing Zones

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Thrives in zones 3-8, with best performance in cooler climates (zones 4-6)

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

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Growth Stages

1

Seedling

2-3 weeks

Tiny green cotyledons emerge; first true leaves appear within 1-2 weeks

Keep soil consistently moist but not waterlogged. Provide bright indirect light. Thin seedlings to proper spacing once true leaves appear.

2

Vegetative Growth

6-8 weeks

Plant develops sturdy stems and lance-shaped foliage; forms bushy mound shape

Pinch back stem tips in early summer (before July 15) to encourage branching and fuller form. Water moderately. Apply balanced fertilizer every 3-4 weeks.

3

Bud Formation

3-4 weeks

Distinctive crimson buds begin forming at stem tips; buds appear tightly packed and velvety

Reduce nitrogen fertilizer to avoid excessive leaf growth at expense of flowers. Maintain consistent soil moisture. Improve air circulation by thinning crowded stems if needed.

4

Flowering

4-6 weeks

Abundant semi-double, brocade-textured crimson flowers fully open, creating dense clusters of blooms

Deadhead spent flowers to encourage continued blooming. Water at soil level to prevent fungal diseases on petals. Stake if winds are strong.

5

Seed Maturation & Dormancy

Through winter

Flowers fade; seed heads develop if flowers are not deadheaded; plant enters winter dormancy

Allow some flowers to develop seeds for wildlife. Cut back dried stems to 3-4 inches after first hard frost. Apply winter mulch in zones below 5.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fennel Dill Black walnut trees Highly aggressive spreading plants (some bamboos)

Common Pests

  • Ensure good air circulation; water at base only; spray with sulfur or neem oil if needed; resistant cultivars available

  • Remove infected plants showing yellowing and stunting; control leafhopper vectors with insecticidal soap; plant resistant varieties

  • Hand-pick early morning; use beetle traps at distance from plants; apply neem oil or spinosad if infestation is severe

  • Increase humidity with morning watering; spray with water to dislodge; use miticide only if severe; encourage predatory insects

  • Spray with strong water stream; use insecticidal soap; encourage ladybugs and parasitic wasps

Uses

🍳

Edible Flower Garnish

Culinary

Crimson aster flowers can be used as colorful, pesticide-free garnish for salads and desserts. The petals have a slightly bitter taste and add visual appeal to gourmet presentations. [source]

🏠

Cut Flower Arrangements

Household

Excellent long-lasting cut flower that holds color and form in arrangements for over a week. The semi-double texture provides depth and visual interest to fall floral designs. [source]

🦋

Pollinator Support

Wildlife

Provides crucial late-season nectar and pollen for migratory monarch butterflies and native bees preparing for winter. Fall-blooming asters are essential for wildlife survival before migration. [source]

💊

Traditional Herbal Remedy

Medicinal

Aster species have been used in traditional herbalism for respiratory support and inflammation reduction. Flowers can be dried and steeped into tea for traditional wellness purposes. [source]

🎨

Dried Flower Arrangements

Craft

Flowers dry exceptionally well and retain color intensity, making them ideal for permanent arrangements, wreaths, and craft projects. Hang dry upside-down in bundles in a warm, dark location. [source]

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

Harvest Tips

Cut flowers in early morning when buds are just opening for longest vase life (7-10 days). Remove lower foliage before arranging. Re-cut stems at 45-degree angle and refresh water every 2-3 days. For seed collection, allow spent flowers to dry completely on plant, then cut seed heads and store in cool, dry location.

Fun Facts

  • 🌱 'Crimson Brocade' was bred from Symphyotrichum novi-belgii, native to eastern North America, specifically the New York coastal regions—hence the common name New York Aster.
  • 🌱 The brocade texture refers to the layered, intricately patterned petals that create a rich fabric-like appearance, which brocade is a ornamental woven fabric with an embossed pattern.
  • 🌱 Asters bloom just as daylight hours decrease to 12 hours, making them excellent fall indicators; their name comes from the Greek word 'aster' meaning 'star' because of their star-shaped flower clusters.

Gardening Terms

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