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Climbing hydrangeas (Hydrangea petiolaris) originally come from Asian forests. However, they are hardy here too and can grow to several meters in height. They usually flower white and climb with the help of adhesive roots.
Cordifolia
This cultivated form does not grow as large as its relatives. It is therefore also suitable for small gardens or as a decoration for terraces and balconies. If it is not mounted on a trellis, it remains around 60 cm small and grows spherically. However, their adhesive roots also allow them to green house walls. Unlike ivy, climbing hydrangeas do not tend to penetrate deep into the masonry. They are therefore more suitable as permanent house greening.
- Location: shady or semi-shady, root area cool and moist
- Size: climbing up to 3 m, otherwise remaining small
- Flowering time: June to July
- Flower color: creamy white
- Foliage: only deciduous, attractive red-brown shoots in winter
miranda
This type of climbing hydrangea also remains rather small. With a suitable climbing aid, however, it can grow several meters in height. The attractive foliage makes a good privacy screen in the garden. On the balcony or terrace, the plant is content with a larger tub and then needs a sheltered location without blazing sun, otherwise the soil dries out too quickly.
- Location: shady, cool, damp, no waterlogging, semi-shade is tolerated
- Size: up to 3 m high, growth without climbing aid remains smaller, then it also covers the ground
- Flowering time: June to July, forms particularly large flowers
- Flower color: creamy white
- Leaf decoration: yellow variegated, deciduous
Semiola
This variety is a new breed that is characterized by its evergreen foliage and the ability to grow up to 250 cm high without a climbing aid. It is important that this climbing hydrangea needs winter protection if very severe frost is to be expected. Otherwise, she throws off her leaves and can even freeze to death. The first flowers open after 2 to 3 years of standing. This climbing hydrangea then flowers regularly and profusely.
- Location: prefers semi-shade, but also sunny, soil as moist and shady as possible
- Size: up to 250 cm high and 150 cm wide, can be used as a ground cover
- Flowering time: May to June
- Flower color: white
- Foliage decoration: evergreen, deciduous in cold winters, copper-red shoots in spring
Notice: If this variety is to grow in a certain form, it needs a corresponding climbing aid to guide it and an annual pruning to shape it.
Silver Lining
This cultivated form of the climbing hydrangea is not only very long-lived, it also climbs the highest. For this, it must be planted freely in the garden. Although it is suitable as a container plant, it remains much smaller due to the narrow root space. This variety does not need climbing aids, its adhesive roots are strong enough to climb up suitable walls or fences without causing any damage. This variety is characterized by its insect friendliness.
Climbing Hydrangea, Hydrangea petiolaris
- Location: semi-shady preferred, but also tolerates sun or full shade, moist soil, avoid waterlogging
- Size: freely growing up to 15 m high and 2 m wide, otherwise remaining smaller, upright habit up to about 2 m
- Flowering time: May to June
- Flower color: white
- Foliage decoration: bright green, white edge, deciduous
Notice: All climbing hydrangeas like little lime and a shady soil area, as they are shallow-rooted and have a high water requirement.