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How to Grow Rubicunda

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Rubicunda

Photinia × fraseri 'Rubicunda'

shrub

Rubicunda is a hybrid evergreen shrub prized for its striking red new growth that matures to glossy green foliage. It grows as a dense, upright shrub reaching 8-12 feet tall and is commonly used for screening, hedging, and ornamental purposes. The plant occasionally produces small white flowers in spring followed by red berries that age to black.

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Example Rubicunda timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Rubicunda

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Rubicunda

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

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

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily (more sun intensifies red foliage coloration)
💧
Water: Moderate watering; keep soil consistently moist but not waterlogged during establishment. Once established, relatively drought-tolerant but performs best with regular watering during dry periods.
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Spacing: 24 inches
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Days to maturity: Not applicable (woody shrub); reaches ornamental maturity in 3-4 years
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Planting depth: Plant at same depth as root ball; do not bury stem

Soil

Type: Well-draining loamy to sandy soil
pH: 6.0-7.0
Amendments:
Compost or aged manure at planting Perlite or sand if soil is heavy clay Mulch layer to retain moisture

Growing Zones

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Thrives in zones 8-10, with marginal success in zone 7b

7b 8a 8b 9a 9b 10a

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Growth Stages

1

Establishment

6-12 months

Young transplant developing root system; foliage is tender with red new growth.

Water frequently to keep soil consistently moist. Provide afternoon shade in hot climates. Avoid heavy pruning first year.

2

Vegetative Growth

1-2 years

Plant puts on size, producing multiple new shoots with red foliage tips that mature to dark green.

Light pruning to shape; remove dead or crossing branches. Fertilize in spring with balanced fertilizer.

3

Dense Canopy

Ongoing after year 2

Shrub fills out with dense foliage; new growth flushes produce vibrant red tips throughout growing season.

Prune after new growth hardens (late spring/early summer) to maintain shape. Avoid pruning in fall which can stimulate tender new growth vulnerable to frost.

4

Flowering

2-4 weeks in spring

Small, creamy-white flowers appear in spring clusters among the foliage.

Minimal intervention needed. Flowers are not showy but attract pollinators.

5

Fruiting & Maturity

Fruit present fall through winter

Small red berries develop and mature to black; plant maintains ornamental appeal year-round.

No special care required. Berries persist into winter and provide wildlife food.

Companion Planting

Plan your garden →

Plant with:

Abelia Nandina Euonymus Boxwood Juniper Loropetalum Japanese maple (filtered shade)

Avoid planting near:

Crabapple (susceptible to same fire blight) Apple trees Quince Hawthorn

Common Pests

  • Remove infected branches 12 inches below visible damage. Sterilize tools between cuts. Avoid overhead watering. Prune only in dry weather.

  • Improve air circulation through pruning. Remove affected leaves. Apply fungicide if severe. Avoid wetting foliage.

  • Spray with horticultural oil in late winter before growth starts. Monitor new growth and treat as needed.

  • Increase humidity around plant. Spray with water to dislodge. Use miticide if infestation is severe.

Uses

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Privacy screening & hedging

Household

Rubicunda's dense, fast-growing habit makes it ideal for creating living screens and formal hedges. The year-round foliage provides excellent privacy with minimal maintenance compared to deciduous alternatives. [source]

🎨

Cut foliage arrangements

Craft

The striking red new growth and dark green mature foliage are highly valued in floral design and cut arrangements. Branches can be cut and used fresh or conditioned for longer vase life. [source]

🦋

Food and habitat for birds

Wildlife

The persistent black berries provide essential winter food for birds, while the dense canopy offers shelter and nesting sites for various songbird species. [source]

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Landscape ornamental

Household

Prized as an accent plant or focal point in formal gardens, Rubicunda's contrasting red and green foliage creates year-round visual interest without flowers. [source]

Harvest Tips

Not typically harvested. Prune for shape in late spring after new growth hardens. Trim hedges in summer. Remove any diseased wood immediately.

Fun Facts

  • 🌱 Photinia × fraseri is a hybrid cross between Photinia serrulata (Chinese photinia) and Photinia glabra (Japanese photinia), combining desirable traits from both parent species.
  • 🌱 The intensity of red coloration in new growth is enhanced by cool temperatures and full sunlight; plants in shade or warm climates produce less dramatic red tones.
  • 🌱 Despite its common name 'Red Tip Photinia,' Rubicunda was specifically selected as a disease-resistant cultivar with improved resistance to fire blight compared to other Photinia hybrids.

Gardening Terms

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

Full Sun Hybrid Transplant
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