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Beauty Bush

Kolkwitzia amabilis

Accession Number
The alpha-numeric value assigned to a plant when it is added to the living collection as a way of identifying it.
Accession Date
The year the plant’s accession number was assigned.
Common Name
The non-scientific name for the plant.
Scientific Name
The scientific name describes the species of an organism. The first word is the plant's scientific genus and the second is the specific epithet. This two-word binomial is sometimes followed by other taxonomic descriptors, including subspecies (denoted by "ssp."), variety (denoted by "var."), form (denoted by "f." or "forma"), and cultivar (denoted by single quotation marks).
Plant Family
The family to which the plant belongs.
Propagation Material
The first part (material code) describes the material used to create the plant. The most common codes are "SD" (seed), "EX" (existing plant), "PT" (plant), "CT" (cutting), "SC" (scion), "SG" (seedling), and "GR" (graft). The second part describes the lineage the plant is derived from. The last part describes the year of propagation.
Collection Data
The first part indicates provenance (place or source of origin) using a letter code ("W" = wild, "G" = garden, "Z" = indirect wild, "U" = uncertain). The second part lists the plant source. For wild-collected material, the collector, collection number, and country are given.
The location of the plant on the landscape.
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Kolkwitzia amabilis
SD - LINEAGE 54-2017 - 2017
23 FEB 2017
Beauty Bush

Kolkwitzia amabilis is an exceedingly rare shrub that is known for its profusion of blooms in early summer.

Arboretum visitors who venture up Bussey Hill road just past the Lilac collection, in late May to early June, have the opportunity to see a young planting of Kolkwitiza amabilis (54-2017*B) also known as beautybush.  This shrub in the honeysuckle family (Caprifoliaceae) is a monotypic genus and garners its common name from the profusion of blossoms that display their full floral elegance in late spring or early summer. Individual flowers, appearing after foliage, are carmine-pink as the corolla expands eventually bursting into their distinctive five-lobed white flowers, beset with a bearded orange reticulate throat. While these shrubs, grown from seed since 2017, are currently diminutive in their stature they have the capacity to grow up to 3 meters (10 ft) in height with a multi-stemmed, fountain-like form and notable shaggy exfoliating bark. For comparison, a near centenarian example of the species (Accession # 18090*A) can be viewed just a few feet away.

Kolkwitzia amabilis is an exceedingly rare shrub found in the wilds of central China with only two known collections of seed germplasm and subsequent introductions into North America. The first collection was made by plant explorer Earnest Henry Wilson who collected seeds of K. amabilis in 1901 in the mountains in Hubei, China. These seeds were sent first to Veitch and Sons nursery in England before making their way to the Arnold Arboretum in 1907 as plants. This marked the first introduction of this species into cultivation in North America and it became a perennial favorite of Wilson, who often lauded its beauty and merit.

Ninety-three years later in 1994, the second introduction of Kolkwitzia amabilis was made into North America from seed collected during a North American-China Plant Exploration Consortium (NACPEC) expedition which included Arboretum Senior Research Scientist Emeritus Peter del Tredici. In an unfortunate stroke of bad luck, the entirety of seed lot from this collection was lost when the plants were accidentally sold in 1997 during an Arboretum plant sale. Luckily seeds from the collection were shared among NACPEC institutions including USDA’s National Plant Germplasm System (NPGS) who had received seeds at the North Central Regional Plant Introduction Research Station in Ames, Iowa.

Staff scientists within NPGS, recognizing the importance of this species from a conservation and germplasm preservation standpoint started a project with the goal of bulking up the total number of available seeds for preservation and distribution. Between 1997 to 2001 seeds were grown out from this collection yielding seventeen plants that were field grown at the station and allowed to cross pollinate. Despite these plants being open grown together in the field this process was considered to be “controlled pollination via isolation” because no other known Kolkwitzia amabilis aside from the 1994 seed lot were present at the station.  Seeds from these pollination projects were collected in 2004 yielding 6,000 seeds and again in 2006 yielding an additional 36,000 seeds. This newly collected seed was then used to bulk up holdings in NPGS for conservation and was made available for distribution. With ample seed to share they were sent to other long-term seed banks for back up including 2,700 seeds at the National Laboratory for Genetic Resource Preservation in Fort Collins, CO, USA and another 500 seeds at the Svalbard Global Seed Vault in Norway.

In 2017, the Arnold Arboretum also received seeds from the Ames Station. After germinating the seeds and growing the shrubs on, six were planted out into the collections, including accession 54-2017*B presented here. This story demonstrates the importance of studying and collecting rare species in the wild and the critical practice of conservation seed banking by the USDA’s National Plant Germplasm System.


Viewing this plant in-person? Look for these defining characteristics:

  • 1
    Flowers carmine pink as the corolla expands, opening to five lobed white flowers featuring a bearded orange reticulate throat. Miles Schwartz Sax
  • 2
    Shaggy tan exfoliating bark at maturity. Miles Schwartz Sax
  • 3
    Leaves opposite, as typical in the Caprifoliaceae. Miles Schwartz Sax
  • 4
    Seeds with typical “chicken feet” appearance. William (Ned) Friedman

About Our Collection

Fun Facts

  • Plant explorer E.H. Wilson was the first to introduce this species into cultivation with his 1901 collection from Hupei, China during the same three-year trip when he collected the mysterious Dove Tree, Davidia involucrata.

  • The genus is monotoypic meaning that it only contains a single species.

  • Accessions from the 1994 collecting trip appear to be flowering slightly ahead of the Wilson introduction from 1901, although most other morphological characters remain strikingly similar.

  • When Wilson first encountered the plant in 1901, he didn’t know the identity of the species, calling it Abelia sp. It was first described to science in the same year by German taxonomist Carl Graebner based on herbarium specimens collected from Shanxi province in 1895.


Living Specimens
Specimens Dead or Removed
First Addition
Most Recent Addition
Tallest Specimen

Living Specimens

Plant ID Accession Date Received As Origin Source