(FOR SPRING 2025) John Warren Clematis (very large flowers; blooms all summer)

John Warren Clematis

Flower Size: 8-10″ (20-25cm)
Flowering Period: June-Sept
Mature Height: 8-10′ (2.5-3m)
Pruning Group: B2
Planting Aspect: Sun/ Partial Shade
USDA Zone: 4a

A climber with the largest and most charming flowers imaginable.

Attractive, very large pink flowers with carmine edges and veining. The 8-10″ (20-25cm) flowers are produced from June to September.

This is a relatively low maintenance woody vine. It will bloom primarily on old wood of the previous season, with a second flush later in summer. Dead and weak vines should be removed in late winter, and remaining vines should be trimmed back to the first buds that are seen to remove dead stems.

It is a good choice for attracting hummingbirds to your yard.