Clematis ‘Niobe’ Early Large-Flowered Group

red early large-flowered clematis

  • © Joy Creek Nursery

Outstanding Qualities

This cultivar is well-known as the closest to a true red-flowered clematis as these vines can be. In early summer large 5 to 6 inch flowers open a velvety ruby red maturing to a dark wine red. The burgundy tones and flashy red highlights are simply amazing. In late summer to early autumn a second show of these lovely flowers appear again. In the center of the bloom is a tuft of golden yellow stamens that glow against the dark bloom. This is an excellent vine for small gardens or containers.

Quick Facts

Plant Type: vine

Foliage Type: deciduous

Plant Height: 8 ft. 0 in. (2.44 meters)

Plant Width/Spread: 8 ft. 0 in. (2.44 meters)

Plant Height-Mature: 12 ft. 0 in. (3.66 meters)

Plant Width-Mature: 12 ft. 0 in. (3.66 meters)

Hardiness: USDA Zones 4 to 9

Flower Color: red

Sun/Light Exposure: full sun

Water Requirements: regular watering

Seasonal Interest: flowers in early summer with a second flush in late summer to early fall

Wildlife Associations: bees, butterflies

Colors & Combos

Great Color Contrasts: cream, orange, yellow

Great Color Partners: bronze, burgundy, red, violet

Culture Notes
This clematis will grow best in full sun. Provide a location with rich well-drained soil where it can be regularly watered during dry weather. Plant vines that are well rooted and at least two years old. In our climate planting too deeply can smother the roots, especially in heavy soils. Set young plants at the same depth they were in their nursery pots. Clematis are heavy feeders and appreciate fertilizing in spring. This clematis will blooms on old stems and on new growth, so it is best to only prune lightly in late spring to early summer once the first flush of flowers have finished. Remove congested or tangled growth and thin to the strongest stems. Well established, overgrown plants can be cut back to 12 inches tall in winter to remove large tangles, allowing robust new stems to fill out the plant, but it will not flower the next year.
Geek Notes
Raised in Poland by Vladyslaw Noll in 1970. Awarded the RHS Award of Garden Merit (AGM)