Jackmanii Clematis

Clematis ‘Jackmanii’

Jackmanii Clematis is a medium-growing flowering tree, hardy in USDA zones 4-8, that matures to about 8-10 ft × 2-3 ft. It does best in full sun and part shade with medium water needs in well-drained and moist soil. Expect blue, yellow and pink blooms in summer and fall. It attracts bees, butterflies and hummingbirds, stands up well to black walnut, deer and rabbits, grows happily in containers.

USDA zones: 4-8
Sun: Full sun, Part shade
Water: Medium
Mature size: 8-10 ft × 2-3 ft
Spacing: 12 inches-3 feet
Growth rate: Medium
Maintenance: Low
Soil: Well-drained, Moist
Foliage: Green
Bloom color: Blue, Yellow, Pink, Purple, Red, Variegated, White
Bloom season: Summer, Fall
Attracts: Bees, Butterflies, Hummingbirds
Tough against: Black walnut, Deer, Rabbits
Watch out for: Can irritate skin on contact
Toxic to: People, Children, Dogs, Cats, Horses
Native to: N. America, Europe, India, Australia, China, Japan, New Zealand

Freeze survival

Will it survive your winters?

We score Jackmanii Clematis’s freeze-trouble range against the real coldest nights your area has recorded.

Powered by ~35 years of daily lows from the nearest NOAA weather station. A risk read, not a guarantee — a sheltered spot or mature plant beats the odds.