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How to Grow Wisley Red

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Wisley Red

Photinia × fraseri 'Wisley Red'

shrub

Wisley Red is a compact, ornamental evergreen shrub prized for its vibrant red new growth that matures to deep burgundy-green. This hybrid photinia cultivar is excellent for hedging, screening, and specimen planting in temperate climates. It combines attractive foliage with a tidy, manageable growth habit.

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Example Wisley Red timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Wisley Red

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Wisley Red

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

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

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily (partial shade tolerated in very hot climates)
💧
Water: Moderate water needs; water regularly during establishment and drought. Prefers consistent moisture but not waterlogged conditions. Drought-tolerant once established.
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Spacing: 24 inches
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Days to maturity: N/A (ornamental shrub; full landscape size 3-5 years)
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Planting depth: Same depth as root ball; avoid planting deeper than soil line

Soil

Type: Well-draining loamy to sandy soil
pH: 6.0-7.0
Amendments:
Compost Aged bark mulch Perlite for heavy clay soils

Growing Zones

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Thrives in zones 8-10; tolerates zone 7b with winter protection

8a 8b 9a 9b 10a

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Growth Stages

1

Establishment

4-8 weeks

Young transplant with initial root system development and early red foliage emergence

Water regularly to keep soil consistently moist. Mulch around base with 2-3 inches of bark. Avoid fertilizing for 4-6 weeks after planting.

2

Vegetative Growth

Spring through early summer

Active branch and leaf development; bright red new growth appears throughout growing season

Prune lightly to shape and encourage branching. Remove any crossing or weak branches. Apply balanced fertilizer in spring.

3

Summer Maturation

Mid-summer through fall

New red foliage gradually matures to dark burgundy-green; plant reaches desired shape

Maintain consistent watering during hot periods. Summer pruning acceptable but avoid heavy cutting. Monitor for pests.

4

Dormancy/Winter

November through February

Growth slows significantly; foliage deepens in color; some red tints may intensify in cooler temperatures

Reduce watering frequency but maintain moisture during dry spells. No fertilizer needed. Minimal pruning except deadwood removal.

Companion Planting

Plan your garden →

Plant with:

Buxus (boxwood) Ilex (holly) Escallonia Euonymus Viburnum Lonicera (honeysuckle) Callistemon (bottlebrush)

Avoid planting near:

Juglans (black walnut - produces juglone) Plants preferring acidic, consistently wet soils

Common Pests

  • Remove affected foliage; improve air circulation; apply fungicide if severe; avoid overhead watering

  • Inspect regularly; remove with pruning if light infestation; apply horticultural oil or insecticidal soap in spring

  • Ensure good air circulation; apply sulfur or neem oil; reduce nitrogen fertilizer

  • Increase humidity through regular misting; spray with water or miticide in severe cases

Uses

🌿

Screening & Hedging

Ornamental

The compact growth and attractive red-to-burgundy foliage makes Wisley Red ideal for privacy hedges, windbreaks, and garden screening. Multiple plants can be pruned into formal or informal hedges. [source]

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Specimen & Focal Point

Ornamental

Single plants showcase vibrant seasonal color changes, particularly striking red new growth in spring. Excellent for garden entrances and landscape focal points. [source]

🎨

Floral Arrangements

Craft

The attractive red and burgundy foliage adds texture and color to cut flower arrangements and landscape design compositions. [source]

🦋

Wildlife Habitat

Wildlife

Dense foliage provides shelter and nesting sites for birds and beneficial insects. Compact growth structure offers protection from predators. [source]

Harvest Tips

N/A (ornamental foliage plant). Prune for shape and size management in late winter to early spring; remove up to 1/3 of plant material. Cut stems may be used in floral arrangements.

Fun Facts

  • 🌱 Wisley Red is a cultivar of Photinia × fraseri, a hybrid between Photinia serratifolia and Photinia glabra, bred at the RHS Garden Wisley in England.
  • 🌱 The bright red new growth is a natural defense mechanism; the red pigment (anthocyanin) provides UV protection to tender new leaves before they harden.
  • 🌱 Wisley Red is more disease-resistant than the parent species Red Tip Photinia, which is notorious for photinia leaf spot in humid climates.

Gardening Terms

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

Cultivar Full Sun Hybrid Mulch Partial Shade pH Transplant
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