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flowerPerennial
Hydrangea
Hydrangea macrophylla
Also known as: bigleaf hydrangea, hortensia
Showy shrub with large mophead or lacecap flower clusters. Bloom color influenced by soil pH — acidic for blue, alkaline for pink.
Growing Requirements
SunPart Sun
WaterHigh
Soil Type
Soil Drainage
Soil pH
Plant Spacing48–72″
Row Spacing60–96″
Planting Depth—
Height36–72″
Spread36–72″
✓ Container Friendly✗ Not Raised Bed Friendly
Planting Schedule
Transplant Outdoors
1–9 weeks after last frost
Fall Sow
6–8 weeks before first frost
Days to Harvest
365–730 days
Zone Suitability
USDA Hardiness Zones
1
2
3
4
5
6
7
8
9
10
11
12
13
Zones 5–9
Can overwinter in appropriate zones
Perennial in zones 5–9
Blue flowers in acidic soil (below 6.0), pink in alkaline. Many bloom on old wood — prune after flowering. Protect buds from late frost in zone 5.
Companion Plants
No companion data available for this plant yet.