Hydrangea anomalia ssp petiolaris / Climbing Hydrangea / Seeds

(Code: B&T_094)

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Hydrangea anomalia ssp petiolaris / Climbing Hydrangea / Seeds

An excellent climber for a north or east facing wall. The Climbing Hydrangea has glossy green leaves and large flat top white flowers in June and July.  Plants climb up to 10m or more, clinging on to walls, fences and tree trunks. 

Climbing Hydrangeas grow in sun to full shade. They grow in most moist and well drained soils. They are slow to grow at first, but grow well once established.
 

Pack of approx 500 small seeds.  Sow in autumn/winter outside or sow anytime including several weeks in a fridge.  Sowing instructions and a colour photo are printed on the packet.

See how your seeds are packed.


Hardiness Hardy deciduous perennial climber (RHS Hardiness H5)
Flowers June and July
Height 10 - 15m
Spread 3m
Conditions  Sun and shade and moist well-drained soil
Sow

Sow October-January/February in moist seed compost, and overwinter in a cold frame or outside wall, with a glass cover.  The cold breaks seed dormancy.  Seeds germinate over several months in the spring.  Or sow March-September in a tray of seed compost.  Cover very lightly with compost.  Place in a fridge for a month, then out to room temperature.  Do not exclude light.  Seeds emerge one by one over a couple of months or more.  Pot on as seedlings emerge and plant out after the last frost in a sunny or shady fertile well-drained spot. 

Grow Keep young plants well watered while they establish themselves.  Plants do not need pruning unless they outgrow themselves. They flower on growth from the previous year, so trim lightly any wayward stems if needed after flowering in late summer. Some plants take several years to flower.  Plants can be helped to flower with application of a high phosphorous and low nitrogen fertilizer.