How to Grow Exbury Azalea 'Homebush'

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Exbury Azalea 'Homebush'

Rhododendron 'Homebush'

shrub

Exbury Azalea 'Homebush' is a deciduous flowering shrub renowned for its vibrant double pink flowers that bloom prolifically in spring. This hybrid azalea grows into a compact, rounded form and is prized by gardeners for its stunning floral display and manageable size. It belongs to the Exbury Hybrid group, known for exceptional hardiness and garden performance.

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Example Exbury Azalea 'Homebush' timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Exbury Azalea 'Homebush'

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Exbury Azalea 'Homebush'

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Exbury Azalea 'Homebush' dates for your own zip code.

Growing Conditions

☀️
Sun: Partial shade, 4-6 hours of filtered sunlight daily; tolerates full sun in cooler climates but prefers afternoon shade in hot regions
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Water: Keep soil consistently moist but not waterlogged. Water deeply during dry periods, especially during growing season and bloom time. Mulch to retain moisture. Avoid hard water; rainwater is preferable.
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Spacing: 36 inches
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Days to maturity: 2-3 years to mature flowering size; established size reached in 5-7 years
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Planting depth: Plant at same depth as root ball; do not bury stem. Azaleas are shallow-rooted.

Soil

Type: Well-draining acidic loamy soil with organic matter
pH: 4.5-6.0
Amendments:
Peat moss or coconut coir Composted bark Pine needles Leaf mold Sulfur to lower pH if needed

Growing Zones

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Thrives in zones 5-8; hardy to zone 4b with winter protection

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

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Growth Stages

1

Establishment

First year

Young plant focuses on root development and establishing branch structure. Foliage is sparse initially.

Water regularly to keep soil moist. Prune lightly to shape. Avoid fertilizing excessively.

2

Vegetative Growth

2-3 years

Shrub develops its rounded form, producing increasing foliage and branch density. No flowers yet or minimal flowering.

Prune after flowering to maintain shape. Apply acidic fertilizer (rhododendron/azalea formula) in spring. Mulch heavily.

3

Pre-flowering

Late summer through winter

Mature branches set flower buds in late summer/early fall. Buds are visible but dormant throughout winter.

Reduce nitrogen fertilizer to promote blooming. Ensure winter moisture (evergreen mulch). Protect from harsh winter winds.

4

Flowering

3-4 weeks in spring

Dense clusters of double pink flowers cover the shrub in mid to late spring. Peak bloom lasts 2-3 weeks.

Do not prune during bloom. Deadhead spent flowers if desired (encourages energy conservation). Keep soil moist.

5

Post-flowering & Summer Growth

Late spring through summer

Flowers fade; plant enters period of new vegetative growth and sets buds for next year. Foliage deepens in color.

Prune immediately after flowering to shape. Apply balanced or acidic fertilizer. Maintain consistent moisture.

Companion Planting

Plan your garden →

Plant with:

Rhododendrons (other varieties) Kalmia latifolia (Mountain laurel) Pieris japonica (Japanese andromeda) Hosta species (shade underplanting) Helleborus (Christmas rose) Fern species Heuchera (Coral bells) Astilbe

Avoid planting near:

Black walnut trees (juglone toxicity) Shallow-rooted trees competing for moisture Plants preferring alkaline soil Heavy clay soil areas with poor drainage Windswept locations with drying winds

Common Pests

  • Spray with insecticidal soap or horticultural oil; increase humidity; prune affected branches

  • Hand-pick caterpillars; prune affected shoots; use Bacillus thuringiensis (Bt) if needed

  • Increase humidity with misting; spray with water; use miticide if severe

  • Spray undersides of leaves with insecticidal soap; ensure good air circulation

  • and

    Ensure excellent drainage; avoid overwatering; apply fungicide to soil if needed; improve air circulation

Uses

🍳

Edible flowers for garnish

Culinary

Azalea flowers are non-toxic and occasionally used as garnish for salads or desserts. Ensure no pesticides have been applied. [source]

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Ornamental landscaping

Household

'Homebush' is primarily valued as an ornamental shrub for its spectacular double pink spring blooms. Ideal for borders, woodland gardens, foundation plantings, and accent displays. [source]

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Cut flowers for arrangements

Household

Vibrant pink flower clusters make excellent long-lasting cut flowers for spring arrangements and bouquets, providing color indoors. [source]

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Nectar and pollen source

Wildlife

The abundant flowers attract pollinators including bees, hummingbirds, and other beneficial insects, supporting local ecosystems. [source]

💊

Traditional herbal use

Medicinal

Rhododendrons and azaleas have been used in traditional medicine in some cultures, though modern medicinal applications are limited and require caution. [source]

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

Harvest Tips

Azaleas are ornamental flowering plants, not harvested for food. Cut flowers can be enjoyed indoors by removing stems at a 45-degree angle and placing in acidic water (add vinegar to tap water). Deadheading spent blooms immediately after flowering improves next year's display.

Fun Facts

  • 🌱 Exbury Azaleas were developed in the early 1900s by the Rothschild family at Exbury, a famous estate in England, combining tender Mollis hybrids with hardy Ghent hybrids.
  • 🌱 'Homebush' is notable for its fully double flowers (petals covering the stamens), creating a peony-like appearance unusual among azaleas, and is named after a location in Australia.
  • 🌱 Azaleas are actually a type of rhododendron; the distinction is somewhat arbitrary, with most deciduous forms called azaleas and most evergreen forms called rhododendrons.

Gardening Terms

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