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Clematis 'Queen of Holland'

Clematis integrifolia

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Species: integrifolia (in-teg-ree-FOH-lee-uh) (Info)
Cultivar: Queen of Holland
Hybridized by Wim Snoeijer
» View all varieties of Clematis




4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)


4-6 ft. (1.2-1.8 m)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Bloom Color:


Flower Fragrance:

No fragrance

Bloom Shape:



Bloom Diameter:

Medium - 2 to 5 inches (5 to 12 cm)

Bloom Time:

Mid Summer

Late Summer/Early Fall

Sun Exposure:

Sun to Partial Shade

Other details:

Unknown - Tell us


Unknown - Tell us

Pruning Groups:

Group 3 - Summer/Fall bloomers; prune hard in early spring

Patent Information:

Unknown - Tell us

Propagation Methods:

By serpentine layering

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Requires consistently moist soil; do not let dry out between waterings

Where to Grow:

Unknown - Tell us


This plant has been said to grow in the following regions:

Ellicott City, Maryland

Gardeners' Notes:

No details have been posted.