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Clematis henryi

Scientific Name: Clematis henryi

Family: Ranunculaceae

Category: Dicot

Growth:

Duration:

Other Names:

       

Clematis 'Henryi'

Clematis 'Henryi' is a classic and popular clematis variety known for its elegant and impressive flowers. Often referred to simply as Clematis 'Henryi', this cultivar has earned its place as a garden favorite for over a century.

Considerations for Pets

  • As a climbing vine, Clematis 'Henryi' may require support structures like trellises, which could pose a minor entanglement risk for small animals.

Taxonomy and Nomenclature

  • Scientific Name: Clematis 'Henryi'
  • Common Name: Clematis 'Henryi', Queen of the Vines
  • Family: Ranunculaceae (implied, as Clematis belongs to this family)
  • Section: Connatae
  • Subsection: Henryanae
  • Synonyms:
    • Clematis henryi Oliv. (accepted name)
    • Clematis henryi var. leptophylla Hayata (Synonym, L)
    • Clematis henryi var. mollis W.T.Wang (Synonym, L)

Distribution and Habitat

  • The species *Clematis henryi* is native to China, specifically W. Hubei, Sichuan, and Guizhou.
  • Cultivar 'Henryi' is widely cultivated in gardens.

Morphological Characteristics and Growth Habits

  • Clematis 'Henryi' is a vigorous climber, reaching heights of 8 to 20 feet (approximately 3-6 meters).
  • It produces large, creamy-white to pure white flowers that are 6-8 inches in diameter.
  • Flowers feature chocolate brown or purple-violet anthers, providing a striking contrast.
  • The plant has deep green foliage.
  • It is a fast-growing variety.

Flowering Period

  • Blooms from May-June and again from June to September, providing a long season of interest.

Cultivation

  • Easily grown in fertile, medium moisture, well-drained soil.
  • Prefers full sun to part shade, with roots shaded from the sun.
  • Hardy in zones 4-11 (implied from descriptions).

Pruning

  • 'Henryi' is a Group II Clematis for pruning purposes.
  • In early spring, cut back the vine 6 or 8 inches to the nearest pair of strong leaf buds on last year's wood.
  • Remove dead stems before growth begins in early spring.

Historical Information

  • Raised in 1870 by Isaac Anderson-Henry in Scotland.
  • It was one of the early hybrids created to produce the largest possible flowers on clematis.
  • Has received the Royal Horticultural Society’s Award of Garden Merit.

Resources and Further Information

  • Royal Horticultural Society (RHS)
  • Germplasm Resources Information Network (GRIN)
  • International Plant Names Index
  • Catalogue of Life China
  • Wikimedia Commons