Happy Jack® Purple Clematis

Happy Jack® Purple is the clematis cultivar ‘Zojapur’ (USPP20343), a deciduous climbing vine with large purple flowers. [Proven Winners’ exact product page](https://www.provenwinners.com/plants/clematis/happy-jack-purple-clematis-x) lists zones 4–9, mature height of 6–8 feet, and spread of 3–4 feet. [Spring Meadow Nursery](https://springmeadownursery.com/plantfinder/happy-jack-purple-15430) independently lists the same cultivar and its flowering habit. ## Flowers and placement The purple to plum-toned flowers appear in summer. This vine flowers on both old and new wood and can cover a trellis, fence, or other sturdy support. Use it in a mixed border or container where the flowers can be seen at eye level. ## Growing conditions Plant in full sun or part sun. The breeder recommends average water and cool, moist, well-drained soil around the roots. The existing 2 m height and 1 m spread are consistent with the published approximate dimensions. The lower hardiness limit is corrected to zone 4, which both exact-selection sources support. ## Maintenance In spring, prune the stems back to about 2 feet. Keep the root zone cool with mulch or nearby low plants, and guide new growth onto its support.