Buddleja americanaL.

WFO wfo-0000573910 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Buddleja americana, photographed by Neptalí Ramírez Marcial
fig. a Neptalí Ramírez Marcial, CC BY 4.0 / 2021-02-19 / obs. 113512963
Buddleja americana, photographed by Neptalí Ramírez Marcial
fig. b Neptalí Ramírez Marcial, CC BY 4.0 / obs. 13631895
Buddleja americana, photographed by Neptalí Ramírez Marcial
fig. c Neptalí Ramírez Marcial, CC BY 4.0 / obs. 56986454
Buddleja americana, photographed by Neptalí Ramírez Marcial
fig. d Neptalí Ramírez Marcial, CC BY 4.0 / obs. 6086638
Buddleja americana, photographed by Neptalí Ramírez Marcial
fig. e Neptalí Ramírez Marcial, CC BY 4.0 / obs. 29299344
Buddleja americana, photographed by Neptalí Ramírez Marcial
fig. f Neptalí Ramírez Marcial, CC BY 4.0 / obs. 11941581
Buddleja americana, photographed by Neptalí Ramírez Marcial
fig. g Neptalí Ramírez Marcial, CC BY 4.0 / obs. 1293003
Buddleja americana, photographed by geralg
fig. h geralg, CC0 1.0 / obs. 71258839

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.

Native range 20 botanical countries

Regions where Buddleja americana is native: Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Belize, Bolivia, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, Guatemala, Honduras, Jamaica, Nicaragua, Panamá, Peru, Venezuela, Windward Is. Mexico CentralMexico GulfMexico NortheastMexico SoutheastMexico SouthwestBelizeBoliviaColombiaCosta RicaCubaEcuadorEl SalvadorGuatemalaHondurasJamaicaNicaraguaPanamáPeruVenezuela Windward Is.
Native distribution of Buddleja americana, 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
Belize BLZ SOUTHERN AMERICA
Bolivia BOL
Colombia CLM
Costa Rica COS
Cuba CUB
Ecuador ECU
El Salvador ELS
Guatemala GUA
Honduras HON
Jamaica JAM
Nicaragua NIC
Panamá PAN
Peru PER
Venezuela VEN
Windward Is. WIN
Mexico Central MXC NORTHERN AMERICA
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Southeast MXT
Mexico Southwest MXS

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.

Where it actually grows measured, from 31 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 5.8 °C 14.2 °C 18.1 °C
Warmest month, mean daily high 22.4 °C 28.1 °C 32.0 °C
Annual rainfall 241 mm 1,164 mm 2,999 mm
Rainfall in the driest quarter 9 mm 38 mm 231 mm

It is barely found anywhere that freezes. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 31 research-grade observations of Buddleja americana 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.

Also published as 11 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.

  • Buddleja americana Kunth
  • Buddleja americana var. albiflora M.Gómez
  • Buddleja americana var. rothschuhii Loes.
  • Buddleja callicarpoides Kunth
  • Buddleja cana Willd.
  • Buddleja dentata Kunth
  • Buddleja floribunda Kunth
  • Buddleja occidentalis L.
  • Buddleja spicata Ruiz & Pav.
  • Buddleja verbasci Pers.
  • Buddleja verbascifolia Kunth

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. 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.