Bigleaf hydrangea
Hydrangea macrophylla
- Size
- 1.2 m tall, 1.2 m across
- Light
- Part sun, shade
- Hardy to
- -20 degrees
- Flowers
- June to August
- Border planting
- Shade
- Flowers for weeks
- Takes shade
Safety
- Can cause illness if eaten; keep it away from small children.
- Can upset a dog that chews it.
- Can upset a cat that chews it.
Reviewed and approved for Poland by a qualified gardener with thirty years of practice, 22 September 2026.
What it needs, what it becomes
- Type
- Shrubs
- Family
- Hydrangeaceae
- Size when mature
- 1.2 m tall, 1.2 m across
- Light
- Part sun, shade
- Moisture
- Moist, medium
- Soil
- loam, clay
- Soil pH
- 4.5 to 6.5
- Hardy to
- -20 degrees
- Flowers
- June to August
- For pollinators
- Some
- Water
- High water
- Upkeep
- Some
- Growth
- Steady
- In Europe
- Introduced
- Spreading risk
- None known
- If eaten
- People: Can cause illness · Dogs: Can cause illness · Cats: Can cause illness
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