Clematis Montana Grandiflora

Montana Grandiflora Clematis

Clematis montana ‘Grandiflora’ is a spectacular, fast-growing spring clematis renowned for its masses of large, pure white flowers that smother the vine in mid to late spring. With exceptional vigor, it’s ideal for quickly covering large structures and creating dramatic seasonal impact.


Plant Profile
Type: Deciduous flowering vine

Mature Size:



Width: 10–15+ ft



Height: 20–30+ ft



Bloom:



Large (4–6 in.) open white flowers



Light, pleasant fragrance



Heavy bloom in mid to late spring



Foliage: Medium green; emerges bronze-tinged and matures to green

Zones: 4a–9b
Light: Full sun to partial shade
Soil: Moist, well-drained soils; adaptable
Water: Moderate; drought tolerant once established

Pruning Group: Group 1 (blooms on old wood)


Features & Uses


Form: Extremely vigorous, twining climber with a broad, cascading habit



Ideal for pergolas, large arbors, fences, walls, barns, and mature trees



One of the most dramatic spring-blooming clematis



Excellent for quickly screening or softening large structures



Attractive seed heads follow flowering




Care Notes


Minimal pruning required; prune only after flowering if size control is needed



Avoid hard pruning or fall pruning, which removes next year’s blooms



Provide very strong support due to rapid growth and mature size

Plant type

Vine

Height

20-30'

Width

10-15'

Hardiness zones

4–9

Sunlight

Full Sun, Partial Shade

Bloom time

Early Fall, Fall, Late Summer, Summer

Flower color

White

Leaf color

Green

Fall color

Green

Attracts

Bees butterflies birds

Soil

Moist well-drained

Shape

Climbing

Fragrant

Yes

Drought tolerant

No