Climbing Hydrangea
Hydrangea petiolaris
Climbing Plants Difficulty: Moderate
📖 About this plant
A majestic, slow-growing deciduous vine that clings to walls and structures with aerial rootlets, producing enormous flat-topped clusters of fragrant white flowers in early summer. Its large, heart-shaped dark green leaves turn yellow in fall, and the peeling cinnamon-brown bark provides winter interest. One of the few vines that thrives in shade and north-facing walls.
🧑🌾 Care requirements
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Light
Partial shade (4-6 hrs)
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Water
Every 1-2 weeks
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Humidity
Moderate to high (50-70%)
🌡️
Temperature
5-25°C
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Soil
Rich, moist, well-draining loam; prefers slightly acidic soil; pH 5.5-6.5
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Fertilizer
Balanced slow-release fertilizer (10-10-10) in early spring and mid-summer
📋 Plant facts
- 🌍 Origin
- Japan, South Korea, Sakhalin Island
- 📏 Max height
- 300-700 cm
- 📐 Spread
- 100-300 cm
- 🕰️ Bloom time
- Summer
- 🎨 Bloom color
- White
- 🍃 Foliage color
- Green
- ⏳ Lifespan
- Perennial
- 📈 Growth rate
- Slow
- ☠️ Toxicity
- Toxic — leaves and buds contain hydrangin (cyanogenic glycoside); can cause vomiting and diarrhea in pets and humans if ingested
- 🌱 Propagation
- Semi-hardwood cuttings in late summer, layering of low stems, or stem tip cuttings
🛡️ Health & Safety
⚠️ Not pet safe
☠️ Toxic
Toxic — leaves and buds contain hydrangin (cyanogenic glycoside); can cause vomiting and diarrhea in pets and humans if ingested
Common issues
- Very slow to establish — may take 3-5 years to flower, Needs sturdy support for mature weight, Powdery mildew in poor air circulation
💡 Care tips
- Produces large lacecap white flowers in early summer,Self-clinging aerial roots attach to walls and fences,Slow to establish but becomes a magnificent specimen over time,Tolerates more shade than most flowering climbing vines
🪴 Add to My Plants
One click — added instantly. Watering every 11 days, fertilizing every 30 days.
