How to Grow Pink Double Delight Hydrangea

Pink Double Delight Hydrangea

Hydrangea macrophylla 'Pink Double Delight'

shrub

Pink Double Delight is a mophead hydrangea cultivar prized for its full, double flowers that bloom in shades of pink to rose-red, depending on soil pH and light conditions. This deciduous woody shrub grows 3-5 feet tall and wide, making it an excellent choice for foundation plantings, borders, and container gardening. The flowers persist for months and dry beautifully for arrangements.

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Example Pink Double Delight Hydrangea timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Pink Double Delight Hydrangea

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Pink Double Delight Hydrangea

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Pink Double Delight Hydrangea dates for your own zip code.

Growing Conditions

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Sun: Partial shade, 4-6 hours of morning sun; afternoon shade essential in zones 8-9 to prevent leaf burn and stress
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Water: Consistent moisture; water deeply 1-2 times weekly, keeping soil evenly moist but not waterlogged. Increase frequency during hot, dry periods and flowering season. Mulch to retain moisture.
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Spacing: 36 inches
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Days to maturity: Blooms the first year for most nursery plants; 2-3 years for seed-grown plants to reach mature flowering size
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Planting depth: Plant at same depth as root ball; top of root ball should be level with ground surface

Soil

Type: Well-draining, humus-rich loamy soil
pH: 5.5-6.5 for pink flowers; avoid highly acidic soil which shifts color toward blue
Amendments:
Peat moss or coconut coir for organic matter Compost for nutrients and structure Perlite for drainage if soil is heavy clay Avoid aluminum sulfate, which promotes blue coloring

Growing Zones

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Thrives in zones 5b-9a; best performance in zones 6-8

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

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Growth Stages

1

Establishment

2-4 weeks

New plant with initial leafing and root development, 2-4 weeks after planting

Water deeply and regularly; apply 2-3 inches of mulch; avoid fertilizing the first month to prevent salt burn on tender roots

2

Vegetative Growth

6-8 weeks

Vigorous shoot and leaf development throughout spring and early summer; stems gradually thicken and branch

Maintain consistent moisture; apply balanced slow-release fertilizer in spring; prune wayward growth to shape; monitor for spider mites in hot conditions

3

Bud Formation

3-4 weeks

Flower buds appear at shoot tips in mid-to-late summer; buds swell and show pink coloration

Reduce nitrogen fertilizer; continue watering; avoid pruning after July to prevent removing flower buds; early morning watering reduces powdery mildew risk

4

Flowering

8-12 weeks

Full double pink flowers open in mid-summer through fall; flowers gradually deepen in color and papery texture develops

Water at base to avoid wetting foliage; deadhead spent clusters if desired to encourage side blooms; monitor soil pH to maintain pink color; provide afternoon shade in hot climates

5

Dormancy

3-4 months

Leaves fade to bronze or burgundy tones in fall; stems harden off and plant enters winter rest

Reduce watering as growth slows; do not prune; apply fall mulch layer; in zones 5-6, consider burlap wrapping for wind protection; canes may be cut back in early spring before growth begins

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Black walnuts (produce juglone toxin) Plants preferring dry conditions like sedums and lavender Aggressive, shallow-rooted competitors like some tree roots

Common Pests

  • Increase humidity with regular misting; spray with water to dislodge; use insecticidal soap or horticultural oil if severe; avoid overhead watering which creates disease risk

  • Hand-pick beetles in early morning and drop into soapy water; use kaolin clay spray to deter; avoid traps near the plant as they attract more beetles; apply systemic insecticide in soil in spring for larval control

  • Ensure good air circulation and afternoon shade; water at soil level, not foliage; apply sulfur fungicide or neem oil at first sign; reduce nitrogen fertilizer which promotes tender, susceptible growth

  • Spray forcefully with water to dislodge; use insecticidal soap or horticultural oil; encourage natural predators like ladybugs; avoid over-fertilizing with nitrogen

  • Remove infected leaves; improve air circulation; avoid wetting foliage; apply copper or sulfur fungicide; water only at the base of plant; mulch to prevent soil splash

Uses

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Fresh and dried floral arrangements

Household

Pink Double Delight flowers are prized for cutting fresh for bouquets and as a long-lasting dried flower. The double blooms are full and showy, and the flowers darken to deeper pink or even burgundy tones as they age, providing color variation in arrangements. [source]

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Foundation and landscape plantings

Household

This compact mophead cultivar is ideal for foundation borders, mixed shrub beds, and specimen plantings. Its moderate size, reliable blooming, and attractive form make it a versatile landscape choice. [source]

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Container and patio gardening

Household

Pink Double Delight is well-suited to large container cultivation on patios and decks, where its blooms can be appreciated at eye level. Container growing also allows easy pH adjustment for color control. [source]

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Traditional herbal remedies

Medicinal

Hydrangea species have been used in traditional Chinese and Native American medicine for kidney and urinary tract support, though scientific evidence is limited. The root and leaves are the parts historically used. [source]

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Pollinator and beneficial insect support

Wildlife

Hydrangea flowers attract bees, butterflies, and other pollinators, supporting garden biodiversity. The plant also provides nesting material for birds. [source]

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

Harvest Tips

For fresh arrangements, cut flower clusters in the morning when stems are fully hydrated; cut at an angle just above a leaf node. For dried flowers, leave clusters on the plant until papery texture develops in late summer or fall (6-8 weeks post-bloom), then cut and hang upside down in a warm, dark, well-ventilated location for 2-3 weeks. Do not deadhead if you want dried flowers.

Fun Facts

  • 🌱 Hydrangea flower color is pH-dependent: in acidic soils (pH below 6.0) the aluminum in soil becomes more available and flowers shift toward blue; in neutral to slightly alkaline soils (pH 6.5+) flowers remain pink. This makes Pink Double Delight a 'pH indicator' plant—its color literally reflects soil chemistry.
  • 🌱 The name 'Hydrangea' comes from Greek 'hydro' (water) and 'angos' (vessel), referring to the cup-shaped seed capsules. The common name 'hortensia' used in some countries comes from the Latin 'hortensis' meaning 'of the garden.'
  • 🌱 Double-flowered hydrangeas like Pink Double Delight have sterile florets (no reproductive parts), making the flowers longer-lasting since the plant doesn't expend energy on seed production—all the plant's resources go into maintaining the spectacular blooms.

Gardening Terms

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

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