Clematis ‘Mrs. George Jackman’ Early Large-Flowered Group

white early large-flowered clematis

  • © Joy Creek Nursery

Outstanding Qualities

This beautiful satiny white clematis produces large semi-double flowers 6 to 7 inches wide in early summer followed by large single flowers in late summer to early fall. A tuft of brown stamens in the center of the bloom is a nice contrast to the pale and creamy flowers. This old cultivar is great for smaller gardens or can be grown in a container.

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: cream, white

Sun/Light Exposure: full sun

Water Requirements: regular watering

Seasonal Interest: flowers in early summer with a second flush of blooms in late summer to early autumn

Wildlife Associations: bees, butterflies

Colors & Combos

Great Color Contrasts: blue, bronze, burgundy, purple, red

Great Color Partners: brown, lavender, pink, silver

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.