Flowering TreesJackmanii Clematis
Clematis 'Jackmanii'
Jackmanii Clematis (Clematis 'Jackmanii') 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
- Contact dermatitis, Poisonous to humans, Problem for cats, Problem for children, Problem for dogs, Problem for horses
- Native to
- N. America, Europe, India, Australia, China, Japan, New Zealand
In the landscape
Data sources
Freeze survival
Will it survive your winters?
Hardiness zones show a normal bad winter. We check the worst one — Jackmanii Clematis is hardy to about -30°F (estimated from USDA zone 4), so we'll score it against the real coldest nights your area has actually had.
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.
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