Climbing hydrangeas are flowering deciduous vines. These plants are true climbers, using the holdfasts (suckers) on their branches to scale walls and other structures. These large plants sometimes reaching 50 feet tall or more at maturity. In early summer, they produce fragrant, lacy ("lace-cap"), flat-topped, white flower heads. These lace caps can be 5 inches or more in width and are composed of showy flowers on the outside and less-than-showy flowers on the inside.When they dry out, the flower heads turn reddish-brown. Some gardeners cut off the dried flower heads for use in crafts. The leaves are a medium-green color during the summer and turn yellowish in autumn. However, these plants are not grown for their fall-foliage color. The plants' peeling bark provides some winter interest.
Climbing-hydrangea Care
Hydrangea Anomala Ssp. Petiolaris
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Humidity
Normal
Lighting
Full Sun
Temperature
18°C - 24°C
Hardiness zone
4 - 9
Difficulty
Medium
Hibernation
Cold Period
How to Care for the Plant
Water
As with other hydrangea plants, this species likes constantly moist soil. Place it where it will get watered about 1 inch weekly, or even more often in hot weather. The Greek root hydr- in the name, hydrangea refers to water, and angeon comes from the Greek for "vessel."
Fertilizer
Fertilize this plant in the spring before the leaves begin to bud. Granular fertilizer with a high phosphorous count will create beautiful blooms on your hydrangeas. You can also fertilize again after the flowers have bloomed in the summer.
Sunlight
Relatively few hardy flowering vines tolerate shade, but climbing hydrangea is one of them. In fact, in hot climates, they actually prefer a location with at least partial shade. Elsewhere, they typically will do alright in more sunny areas, if adequately watered. Climbing hydrangeas that do get more sun tend to bloom better.
Soil
Plant climbing hydrangea in soil that drains well and contains plenty of compost. Aim for a soil pH that is slightly acidic, and keep the soil evenly moist. Apply a 3-inch layer of mulch to help retain water in the ground around the root zone.
Temperature
This plant does well in temperate climates but it doesn't like hot, humid conditions. It can be damaged by sunburn and prefers daytime temperatures around 70 degrees Fahrenheit and night temperatures around 60 degrees. It will set buds only if there are six weeks of temperatures below 65 degrees. A sudden frost can damage the buds and you may not see flowers the next year.
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