Growth Rate
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- Speed: Climbing Hydrangea has a moderate to slow growth rate in its early years, but once established, it can grow vigorously, reaching heights of 30-50 feet or more. It may take a few years to become well-established, but once it does, it will grow reliably each year.
- Mature Growth: At maturity, Hydrangea anomala subsp. petiolaris can reach a height of 30-50 feet and a spread of 5-6 feet when grown as a climbing vine. It can also be trained as a ground cover, where it can spread horizontally up to 10 feet. Its ability to climb vertical structures makes it an ideal choice for covering large areas.
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Colorful leaves
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Flowering
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Yes |
Bloom Color
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Disease resistant
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Yes |
Cold Tolerant
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Yes |
Heat Tolerant
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No |
Drought Tolerant
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No |
Deer Resistant
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No |
Edible
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No |
Wildlife Attraction
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Climbing Hydrangea attracts pollinators such as bees and butterflies with its nectar-rich flowers. The dense foliage also provides shelter and nesting sites for small birds and insects. Additionally, the plant’s flowers are lightly fragrant, adding sensory appeal to the garden. |
Self-pollinating
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Seasonality
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Climbing Hydrangea is a deciduous perennial vine, with its leaves emerging in spring, flowering in late spring and summer, and going dormant in winter. In winter, its peeling bark provides additional visual interest. |
Ideal For
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– Climbing vertical surfaces (walls, fences, tree trunks) – shaded arbors and pergolas – woodland gardens – espalier against masonry – large-scale groundcover on slopes when unsupported |
Leaf Description
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The foliage of Climbing Hydrangea is made up of dark green, heart-shaped leaves that grow densely along the vine, providing lush coverage for walls or fences. In fall, the leaves turn a soft yellow before dropping, creating a seasonal shift in color. During the winter months, the vine’s peeling cinnamon-brown bark becomes more prominent, adding texture and interest to the landscape. |
Flower Description
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- Flowering Season: Hydrangea anomala subsp. petiolaris blooms in late spring to early summer, typically from May to July. The flowers are large, showy clusters of white lacecap blooms that last for several weeks.
- Flower Description: The flowers of Climbing Hydrangea are delicate, white lacecap blooms with a central cluster of fertile flowers surrounded by larger, showy sterile flowers. Each flower cluster can grow up to 8-10 inches wide, creating a bold, yet elegant display. The flowers are fragrant and attract pollinators like bees and butterflies, adding life and movement to the garden.
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Planting Instructions
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- When to Plant: Plant in early spring or fall to allow the vine to establish its roots before the hot summer or cold winter months.
- How to Plant: Choose a location with vertical support, such as a trellis, fence, or wall. Dig a hole twice as wide as the root ball and plant at the same depth as it was in the container. Space plants 5-10 feet apart to allow for their mature size.
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Pruning & Maintenance
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Minimal pruning is needed for Climbing Hydrangea. Prune after flowering in late summer to remove dead or damaged branches and control its size if necessary. Avoid heavy pruning, as this can reduce flowering the following year. Light shaping can be done to maintain its structure. |
Water Needs
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Climbing Hydrangea prefers moist, well-drained soil. Water regularly during the first growing season to help the plant establish a strong root system. Once established, it is fairly drought-tolerant but performs best with consistent moisture, especially during dry spells. Avoid waterlogged conditions, as they can lead to root rot. |
Light Needs
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This hydrangea thrives in partial shade but can tolerate full sun if the soil is kept consistently moist. It performs best in locations that receive morning sun and afternoon shade, as too much direct sunlight can scorch the leaves. |
Harvesting
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The beautiful white flower clusters can be cut and used in fresh floral arrangements. They add elegance and texture to bouquets. Additionally, the flowers can be dried for use in dried floral displays. |
Fertilizing
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Fertilize in early spring with a balanced, slow-release fertilizer or compost to encourage healthy growth and abundant flowering. A second light application of fertilizer after flowering can help maintain plant vigor. |
Additional Care Tips
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- Mulching: Apply a 2-3 inch layer of mulch around the base of the plant to help retain moisture, suppress weeds, and regulate soil temperature.
- Soil: This hydrangea prefers rich, well-drained soil with a slightly acidic to neutral pH. It can adapt to a variety of soil types as long as the soil drains well.
- Support: Provide a sturdy vertical structure, such as a wall, fence, or trellis, for the plant to climb. The vine attaches itself using aerial roots, so ensure the surface is suitable for this type of attachment.
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Pollination
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The flowers of Hydrangea anomala subsp. petiolaris are pollinated by bees and other beneficial insects. While the plant is grown primarily for its ornamental value, the flowers provide a valuable nectar source for pollinators during the blooming season. |
Companion Plants
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– Hosta – loves shade and moisture; large foliage contrasts beautifully with the climbing hydrangea’s leaves
– Ferns (e.g., Dryopteris, Athyrium) – add fine-textured, shade-loving greenery underneath or nearby
– Astilbe – feathery flower plumes and similar moisture needs make a soft pairing
– Brunnera macrophylla – heart-shaped leaves and spring flowers thrive in similar woodland conditions
– Heuchera – colorful foliage and shade tolerance provide excellent seasonal contrast
– Tiarella (Foamflower) – compact, ground-level filler with spring blooms
– Pulmonaria – speckled foliage and early-season flowers underplant beautifully with hydrangeas
– Epimedium – drought-tolerant once established, ideal for dry shade beneath climbing hydrangea
– Carex (Sedge) – low-maintenance, grass-like form for textural interest |