About

Clematis 'Helios' is a deciduous vine that can reach heights of 1 to 2.2 meters. Its leaves are arranged oppositely and consist of green leaflets attached to twining stems. The plant produces bright yellow flowers that emit a coconut fragrance. These flowers begin as lantern-shaped buds before expanding into flat star-like blossoms. Blooming occurs from summer into autumn, and the plant subsequently develops fluffy, silver seed heads in the fall.

About the genus

Clematis includes a variety of plants, ranging from deciduous and evergreen shrubs to herbaceous perennials. Many of these species are climbers, utilizing twining leaf stalks for support, and they frequently produce prominent flowers. In the fall, certain varieties develop appealing fluffy seed heads.

Plant details

Height

1.5-2.5 metres

Spread

1.5-2.5 metres

Toxicity

Skin, irritant., Wear, gloves, and, other, protective, equipment, when, handling., Pets, (rabbits):, Harmful, if, eaten., For, further, information, and, contact, numbers, regarding, pets,, see, the, HTA, guide, to, potentially, harmful, plants

Care notes

Cultivation

Plant in a moisture-retentive, well-drained soil, with the roots and base of the plant kept cool and shaded by other plants or a layer of pebbles at the base. Plant with the crown 5-8cm (2-3in) deep to encourage new shoots to grow from below ground level. See clematis cultivation

Pruning

See clematis pruning: group three

Propagation

Propagate by layering or semi-hardwood cuttings

Pest resistance

May be susceptible to aphids, capsid bug, slugs and snails

Disease resistance

May be susceptible to honey fungus (rarely), clematis wilt and clematis slime flux