Hydrangea petiolaris - Climbing Hydrangea A charming self clinging climber that will thrive even on a north facing wall. In midsummer the white lacecap-style hydrangea flowers cover the plant, while the leaves turn yellow in autumn. Will grow best in partial shade in a sheltered position in soils rich in organic matter. Position: Full sun to partial shadeSoils: Moist, well-drainedHardiness: Fully hardySize: Can reach 10 - 20 ft