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John Warren Clematis*

Clematis 'John Warren'

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John Warren Clematis (Clematis 'John Warren') at Flagg's Garden Center

John Warren Clematis flowers

John Warren Clematis flowers

(Photo courtesy of NetPS Plant Finder)

* This is a "special order" plant - contact store for details

Height:  10 feet

Spread:  24 inches

Sunlight:  full sun 

Hardiness Zone:  4a

Description:

A climber with the largest and most charming flowers imaginable; shades of soft pink and violet alternate in bars along the petals around a rich red center; may bloom again in late summer

Ornamental Features

John Warren Clematis features bold shell pink star-shaped flowers with violet overtones, red eyes and red anthers at the ends of the branches from early to late summer. It has green deciduous foliage. The compound leaves do not develop any appreciable fall color.

Landscape Attributes

John Warren Clematis is a multi-stemmed deciduous woody vine with a twining and trailing habit of growth. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.

This is a relatively low maintenance woody vine. It is a Type 2 clematis, which means 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. It has no significant negative characteristics.

John Warren Clematis is recommended for the following landscape applications;

  • Accent
  • Hedges/Screening
  • General Garden Use
  • Container Planting

Planting & Growing

John Warren Clematis will grow to be about 10 feet tall at maturity, with a spread of 24 inches. As a climbing vine, it tends to be leggy near the base and should be underplanted with low-growing facer plants. It should be planted near a fence, trellis or other landscape structure where it can be trained to grow upwards on it, or allowed to trail off a retaining wall or slope. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 20 years.

This woody vine should only be grown in full sunlight. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. Consider applying a thick mulch around the root zone in both summer and winter to conserve soil moisture and protect it in exposed locations or colder microclimates. This particular variety is an interspecific hybrid.

John Warren Clematis makes a fine choice for the outdoor landscape, but it is also well-suited for use in outdoor pots and containers. Because of its spreading habit of growth, it is ideally suited for use as a 'spiller' in the 'spiller-thriller-filler' container combination; plant it near the edges where it can spill gracefully over the pot. It is even sizeable enough that it can be grown alone in a suitable container. Note that when grown in a container, it may not perform exactly as indicated on the tag - this is to be expected. Also note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 

* This is a "special order" plant - contact store for details

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Accent  Screening  Garden  Container 
Applications
Flowers  Attracts Wildlife 
Ornamental Features