Clematis Species, Passion Flower Clematis
Clematisflorida var. sieboldiana

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee)
Genus: Clematis (KLEM-uh-tiss)
Species: florida var. sieboldiana

Synonym:Clematis bicolor

Synonym:Clematis siboldii

Synonym:Clematis florida var. bicolor

Height

10-12 ft. (3-3.6 m)

Spacing

24-36 in. (60-90 cm)

Hardiness

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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Sun Exposure

Sun to Partial Shade
Light Shade

Danger

All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color

Pale Yellow
Pale Green
Medium Purple

Bloom Time

Mid Summer
Late Summer/Early Fall

Other details

Unknown

Propagation Methods

From softwood cuttings
From semi-hardwood cuttings
By simple layering
By serpentine layering

Seed Collecting

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

Flower Fragrance

Slightly Fragrant

Patent Information

Non-patented

Group

Late Large-flowered

Bloom Shape

Semi-Double
Flat

Pruning Groups

Group 2 - Repeat bloomers; prune immediately after flowering

Bloom Diameter

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

Foliage Color

Unknown

Bloom Characteristics

Flowers are good for cutting

Water Requirements

Average Water Needs; Water regularly; do not overwater

Where to Grow

Grow outdoors year-round in hardiness zone