How to Grow Delilah Rose

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Delilah Rose

Rosa 'Delilah'

shrub

Delilah is a modern shrub rose known for its deep crimson-red blooms with a velvety texture and rich fragrance. This English-style rose produces clusters of full, quartered flowers on a compact, disease-resistant plant. It's an excellent choice for borders, containers, and cutting gardens.

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Example Delilah Rose timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Delilah Rose

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Delilah Rose

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

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

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily minimum (8+ hours ideal for best blooming)
💧
Water: Deep watering 1-2 times per week, keeping soil consistently moist but not waterlogged. Reduce watering in fall. Water at soil level to avoid fungal issues on foliage.
📏
Spacing: 24-36 inches
📅
Days to maturity: Blooms begin 8-12 weeks after planting; reaches full maturity in 2-3 years
🌱
Planting depth: Graft union should be 1-2 inches below soil level in cold climates, at or slightly above in warmer zones

Soil

Type: Well-draining loamy soil rich in organic matter
pH: 6.0-6.5
Amendments:
Compost aged manure perlite for drainage bone meal

Growing Zones

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Thrives in zones 5-9, with best performance in zones 6-8

5b 6a 6b 7a 7b 8a 8b 9a 9b

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Growth Stages

1

Establishment

4-8 weeks

Newly planted rose focusing on root development with minimal flowering

Water deeply and regularly; apply mulch; pinch off flower buds to encourage strong root system; protect from extreme weather

2

Vegetative Growth

6-12 weeks

Plant develops new canes and foliage; begins forming flower buds

Continue regular watering; apply balanced fertilizer every 4-6 weeks; prune to shape plant; monitor for pests and diseases

3

Flowering

6-8 weeks per flush (repeating through season)

Produces clusters of deep crimson-red quartered blooms with strong fragrance

Deadhead spent blooms to encourage continuous flowering; feed with rose fertilizer every 3-4 weeks; maintain consistent moisture

4

Summer Dormancy

4-6 weeks in hot climates

May experience reduced blooming during extreme heat

Maintain watering; provide afternoon shade in very hot climates; avoid heavy pruning

5

Fall Blooming & Hardening Off

6-10 weeks

Resumes flowering as temperatures cool; plant prepares for dormancy

Reduce fertilizing in late summer; allow last bloom cycle; stop deadheading in late fall to signal dormancy; apply winter mulch

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Walnut trees (juglone toxicity) Fennel Cabbage family plants in very close proximity

Common Pests

  • Hand-pick in early morning; use row covers; apply neem oil or insecticidal soap; avoid traps near roses

  • Spray with strong water stream; apply insecticidal soap; introduce ladybugs; use neem oil

  • Increase humidity; spray with water; apply miticide or neem oil if severe; improve air circulation

  • Ensure good air circulation; avoid overhead watering; apply sulfur or fungicidal spray; remove infected leaves

  • Remove infected leaves; water at soil level only; apply fungicide; improve air circulation; select disease-resistant varieties

Uses

🍳

Edible Petals & Rose Water

Culinary

Deep red petals are edible and can be used to garnish desserts, salads, and beverages. Rose petals and blooms can be infused into water, tea, or simple syrup for a floral flavor. [source]

💊

Traditional Rose Hip & Petal Remedies

Medicinal

Roses contain vitamin C and antioxidants. Rose petals have been traditionally used in herbal teas to support immune health and wellness, though evidence is largely traditional. [source]

🏠

Cut Flowers & Arrangements

Household

Delilah's long stems, full quartered blooms, and rich crimson color make it ideal for fresh floral arrangements, wedding bouquets, and cut flower displays that last 8-10 days in water. [source]

🎨

Dried Petals & Potpourri

Craft

Fragrant petals can be dried and used in potpourri, sachets, and craft projects. The deep color holds reasonably well when dried, making it attractive for decorative arrangements. [source]

🦋

Pollinator Support

Wildlife

Roses attract bees, butterflies, and other pollinators. The open flower form provides good access to nectar and pollen, supporting local pollinator populations in the garden. [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 (8-10 days). Use sharp pruning shears and cut at 45-degree angles above outward-facing buds. Remove lower leaves that would sit below waterline. Change water daily and recut stems every few days. Deadhead spent blooms throughout season to encourage continuous flowering.

Fun Facts

  • 🌱 Delilah is part of the David Austin English Roses collection, bred for old-fashioned charm combined with modern disease resistance and repeat flowering.
  • 🌱 The name 'Delilah' references the biblical figure, and the rose's deep crimson color symbolizes deep love, passion, and desire in the traditional rose color language.
  • 🌱 Unlike many ornamental roses, Delilah produces hips in fall (if not deadheaded), which provide food for birds and wildlife while adding seasonal interest to the garden.

Gardening Terms

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

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