Weigela florida(Bunge) A.DC.

oldfashioned weigela

WFO wfo-0001291164 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Weigela florida, photographed by Stephen James McWilliam
fig. a Stephen James McWilliam, CC0 1.0 / 2020-11-23 / obs. 105402859

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

The specimen a real sheet, in a real collection

Herbarium
The New York Botanical Garden
Accession
04995711
Filed as
Weigela florida (Bunge) A.DC.
Det. by
not recorded on this sheet
Collected
not recorded
Origin
not recorded
The sheet
View the digitised specimen (CC BY 4.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. We link to the digitised sheet rather than rehosting it, because the holding institutions do not serve their images to third parties reliably and we are not going to show you a picture we cannot actually deliver. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all sheets never recorded a determiner, which is ordinary.

Native range 7 botanical countries

Regions where Weigela florida is native: China North-Central, China Southeast, Inner Mongolia, Japan, Korea, Manchuria, Primorye China North-CentralChina SoutheastInner MongoliaJapanManchuriaPrimorye Korea
Native distribution of Weigela florida, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
China North-Central CHN ASIA-TEMPERATE
China Southeast CHS
Inner Mongolia CHI
Japan JAP
Korea KOR
Manchuria CHM
Primorye PRM

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 59 in flower of 81 examined

Proportion of examined Weigela florida in flower, by month
Month In flower Examined Share 95% interval
Jan 0 0 too few examined
Feb 0 0 too few examined
Mar 0 0 too few examined
Apr 5 7 71% 36% to 92%
May 35 40 88% 74% to 95%
Jun 9 14 64% 39% to 84%
Jul 4 7 57% 25% to 84%
Aug 4 5 80% 38% to 96%
Sep 1 1 too few examined
Oct 1 3 too few examined
Nov 0 3 too few examined
Dec 0 1 too few examined

Peak flowering in May. Each bar is the share of Weigela florida observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 59 of 81 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 7 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Where it actually grows measured, from 386 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -19.0 °C -3.7 °C 3.8 °C
Warmest month, mean daily high 17.7 °C 23.2 °C 28.8 °C
Annual rainfall 650 mm 889 mm 1,733 mm
Rainfall in the driest quarter 13 mm 117 mm 289 mm

It is found where winters are severely cold. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 386 research-grade observations of Weigela florida that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Named cultivars 11 recorded

Selections of Weigela florida that somebody named and propagated. A cultivar is not a botanical taxon: it is governed by the cultivated-plant code rather than the botanical one, so it appears in no taxonomic backbone, and it has no native range and no wild population of its own. These get no page here, because a cultivar has no photographs, no range and no flowering data of its own, and a page with none of those is not a page.

From Wikidata (CC0), joined to this species on its World Flora Online identifier, so the link to the parent is exact rather than a name match. This list is what is recorded in an openly licensed register; it is not every cultivar that exists, and for many genera it is not close. Why, and how far short it falls.

Also published as 24 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Calysphyrum floridum Bunge
  • Calysphyrum pauciflorum Bunge
  • Calysphyrum roseum C.A.Mey.
  • Diervilla brevicalycina Nakai
  • Diervilla florida (Bunge) Siebold & Zucc.
  • Diervilla florida var. venusta Rehder
  • Diervilla pauciflora (A.DC.) Carrière
  • Diervilla praecox Lemoine
  • Diervilla rosea Walp.
  • Diervilla venusta (Rehder) Stapf
  • Lonicera weigelia E.H.L.Krause
  • Weigela alba Carrière
  • Weigela florida f. alba (Nakai) C.F.Fang
  • Weigela florida f. albiflora Y.C.Chu
  • Weigela florida var. praecox (Lemoine) Y.C.Chu
  • Weigela florida var. venusta (Rehder) Nakai
  • Weigela isolinae Van Houtte
  • Weigela pauciflora A.DC.
  • Weigela praecox (Lemoine) L.H.Bailey
  • Weigela praecox f. albiflora (Y.C.Chu) C.F.Fang
  • Weigela rosea Lindl.
  • Weigela stelzneri Van Houtte
  • Weigela toensis Nakai
  • Weigela venusta (Rehder) L.H.Bailey

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.