Hydrangea macrophylla 'Shamrock'  |
| Family | Hydrangeaceae |
| Plant Type | deciduous shrub |
| Zone | USDA: 5a - 9b RHS: H - FH EGF: H1 - H5 Australia: 1 - 3 |
| Care Level | medium |
| Height | 0.9 - 1.2 m (3 - 4 ft) |
| Spread | 0.9 - 1.2 m (3 - 4 ft) |
| Light | partial shade |
| Soil Moisture | average, well-drained |
| Soil Type | |
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| Description | Hydrangea macrophylla 'Shamrock' (bigleaf hydrangea) bears showy flowers during early summer to mid summer. |