Japanese hydrangea vine

Japanese hydrangea vine prefers moist, well-drained soil and should be watered when the top 1 to 2 inches of soil feels dry. This typically requires water once or twice a week from spring to autumn. During the winter months when temperatures are cooler, watering needs can be reduced to every 2 to 3 weeks as the vine is semi dormant. When watering, apply enough water so that it seeps down to the plant's roots and never allow the soil to become soggy or overly wet.

Japanese hydrangea vine requires full sun to part shade for best flowering. In general, 5 or more hours of direct sunlight per day is needed to encourage the plant to flower. Morning sun is best, as it will dry excess moisture on the foliage better than light coming from the hotter afternoon sun. The vine will tolerate more shade in warmer climates.

Japanese hydrangea vine should be pruned annually in early spring, before new growth begins. As a general rule, prune the vine to control its size and shape, encourage healthy growth, and to remove any dead, damaged, or diseased plant material. It may be necessary to do a hard prune occasionally to control size or shape, but because Schizophragma hydrangeoides blooms on new wood, prune too severely and you will lose flowers. When pruning, avoid cutting back branches too far into the old wood of the plant to prevent permanent damage to the vine.