Hydrangea Seemannii, also known as the ‘Climbing Hydrangea’, is a captivating and relatively lesser-known species of hydrangea that is admired for its unique and exotic appearance. This evergreen hydrangea features large, leathery leaves with a glossy texture, creating a lush, tropical feel in the garden. The plant produces clusters of small, star-shaped flowers which emerge in summer and persist into autumn.
Hydrangea seemannii typically grows to a height of about 12 metres and can spread up to 4 metres, making it suitable for use as a dramatic backdrop in garden beds, as a specimen plant, or even as a large hedge or screen. Its vining habit allows it to be trained on trellises or allowed to sprawl as a ground cover.
Hydrangea Seemannii
To ensure your Hydrangea seemannii thrives, plant it in a location that receives full sun, partial shade to full shade. This plant prefers well-drained soil enriched with organic matter and can adapt to various soil types, including loamy or sandy soils. Regular watering is crucial, especially during dry spells, to keep the soil consistently moist but not waterlogged.
Applying a layer of mulch around the base of the plant helps retain soil moisture, suppress weeds, and regulate soil temperature. Fertilise in early spring with a balanced, all-purpose fertiliser or a slow-release fertiliser to support healthy growth and flowering.
Pruning should be done in late winter or early spring before new growth begins. This Hydrangea blooms on old wood, so avoid cutting back too severely. Instead, remove any dead or damaged wood and lightly shape the plant to maintain its form and encourage healthy flowering.
