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How to Grow Comte de Chambord

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Comte de Chambord

Rosa 'Comte de Chambord'

shrub

Comte de Chambord is a historic Portland rose known for its intensely fragrant, quartered double flowers in deep pink with mauve undertones. This compact shrub produces blooms repeatedly throughout the growing season and is prized by gardeners seeking classic Victorian rose character with modern repeat-flowering habit. It combines old-fashioned rose aesthetics with improved disease resistance and reliable performance.

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Example Comte de Chambord timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Comte de Chambord

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Comte de Chambord

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

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

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily; afternoon shade beneficial in hot climates above zone 8
💧
Water: Regular, consistent watering (1-1.5 inches per week); deep watering at soil level to keep foliage dry and prevent disease; reduce watering in winter dormancy
📏
Spacing: 36 inches
📅
Days to maturity: First blooms appear 8-12 weeks after planting; full plant maturity 2-3 years
🌱
Planting depth: Bud union should be at or 1-2 inches below soil surface (depending on zone; deeper in cold zones for winter protection)

Soil

Type: Well-draining loamy soil rich in organic matter
pH: 6.0-6.5
Amendments:
Compost Aged manure Peat moss or coconut coir Bone meal

Growing Zones

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Thrives in zones 5-9; performs best in cooler climates with moderate humidity

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

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Growth Stages

1

Establishment

3-6 weeks

Recently planted bare-root or container rose; visible canes with emerging red shoots and young leaves

Water gently and frequently; avoid fertilizing for 4-6 weeks; mulch around base keeping 6 inches clear of stems; protect from strong winds

2

Vegetative Growth

6-10 weeks

Bushy growth with dark green foliage; plant develops a compact mounding habit, typically 3-4 feet tall and wide

Apply balanced fertilizer every 4-6 weeks; deadhead any early flower buds to encourage framework development; prune out weak or crossing canes in spring

3

First Bloom Cycle

4-6 weeks

Abundant quartered double flowers appear in clusters; deep pink blooms with strong fragrance

Continue regular feeding; deadhead spent blooms to encourage continuous flowering; monitor for powdery mildew and black spot

4

Repeat Flowering

12-20 weeks (seasonal)

Successive flushes of blooms throughout growing season; plant maintains foliage and produces flowers until frost

Maintain consistent watering and feeding schedule; deadhead regularly; prune lightly between bloom cycles to shape plant; reduce fertilizing in late summer

5

Dormancy

3-4 months

Foliage fades and drops in fall; canes become woody and hardened; plant enters winter rest

Stop fertilizing by late August; reduce watering frequency; prune in early spring before growth begins; provide winter mulch in zones 5-6

Companion Planting

Plan your garden →

Plant with:

Lavender Catmint (Nepeta) Salvia Geranium Boxwood Alliums Bearded Iris Delphiniums

Avoid planting near:

Juglans (Black walnut) Other roses directly adjacent (allow air circulation) Dense evergreen screens (blocks air flow, promotes disease)

Common Pests

  • Ensure good air circulation; avoid overhead watering; spray with sulfur or potassium bicarbonate fungicide; remove infected leaves; improve plant vigor with consistent feeding

  • Remove infected leaves promptly; water at soil level only; apply copper-based fungicide or neem oil at first signs; improve air circulation; mulch to prevent soil splash

  • Spray with strong water stream; apply insecticidal soap; encourage natural predators; use neem oil; prune out heavily infested shoots

  • Handpick in early morning; use pheromone traps away from roses; apply neem oil; avoid imidacloprid which can harm beneficial insects

  • Increase humidity; spray foliage with water; apply miticide or horticultural oil; remove heavily infested leaves

Uses

🍳

Rose petals for tea and infusions

Culinary

The fragrant petals of Comte de Chambord can be dried and steeped in hot water to create a delicate rose tea, or used to infuse syrups, honey, and cocktails. Rose tea is known for its floral aroma and is used in traditional wellness beverages. [source]

🎨

Cut flowers and floral arrangements

Craft

These exceptional quartered blooms are highly prized by florists and arrangers for their romantic form and deep coloring. They are perfect for wedding bouquets, garden-style arrangements, and Victorian-inspired floral designs. [source]

💊

Traditional herbal remedy

Medicinal

Rose petals and hips contain vitamin C and antioxidants traditionally used to support immune function and skin health. Historical herbalism uses rose infusions for digestive and calming properties. [source]

🏠

Natural fragrance and rose water production

Household

Fresh petals can be distilled to create rose water for skincare, cooking, and household perfuming. Dried petals retain fragrance for potpourri and sachets. [source]

🦋

Pollinator garden support

Wildlife

The abundant flowers attract bees, hoverflies, and butterflies, making this rose valuable for supporting pollinator populations in ornamental gardens. The dense flower form provides shelter for beneficial insects. [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 blooms in early morning after dew dries; cut at 45-degree angle above outward-facing leaf set with 3+ leaflets; remove lower foliage below waterline; place immediately in cool water with floral preservative; blooms last 5-7 days in a vase; deadhead spent flowers on plant to encourage more blooms; Comte de Chambord produces its most fragrant blooms in mid-season and can be cut continuously throughout the growing season

Fun Facts

  • 🌱 Comte de Chambord was first registered in 1860 and is named after the Château de Chambord in France's Loire Valley, one of the most iconic Renaissance castles in Europe.
  • 🌱 This rose is classified as a Portland rose, a hybrid class that revolutionized gardening by being one of the first roses to combine old-fashioned flower form with reliable repeat blooming—a trait highly unusual before the 19th century.
  • 🌱 The intensely fragrant blooms contain over 300 aromatic compounds; modern genetic analysis has shown this variety has one of the highest concentrations of rose oxide and other volatile fragrance compounds among heritage roses.

Gardening Terms

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

Deadhead Full Sun Mulch
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