Pollinator plant

Weyer's Butterfly-bush

Buddleja x weyeriana

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Common names

4 names · 2 languages
EnglishYour language
  • Weyer's Butterfly Bush[1]
  • Weyer's Butterfly-bush
Other languages (1)
Dutch
  • Herfstsering
  • Vlinderstruik
Sources & name notes (1)

Names recorded in our plant catalogue and botanical sources, grouped by language. Usage can vary by region.

Catalogue language labels are reviewed separately from botanical source records.

Numbered references identify names recorded by an external source. Other names are from our plant catalogue.

[1] Buddleja x weyeriana — Plant Toolbox common names ↗

NC State Extension Gardener Plant Toolbox; English common names in a United States horticultural reference.

Source records
  • Weyer's Butterfly Bush — ul#common_names > li:nth-of-type(1); heading: Common Name(s):; Buddleja x weyeriana.
Plant references

Source-backed information

Published observations for this plant. Each reference supports the information beside it.

Botanical family
Scrophulariaceae

Genus-level classification for Buddleja; this does not confirm the complete catalogue name.

Sources [1]
Taxonomy
NC State Extension publishes a profile under Buddleja x weyeriana.

Profile-name match; no accepted-name status is asserted.

Sources [2]
Mature height
1.52–4.57 m

NC State Extension profile. Converted from the source range in feet and inches; mature size varies with growing conditions.

Sources [2]
Mature spread
1.22–3.05 m

NC State Extension profile. Converted from the source range in feet and inches; mature size varies with growing conditions.

Sources [2]
Plant habit
Arching; Erect; Rounded; Spreading

NC State Extension profile.

Sources [2]
Life cycle
Perennial

NC State Extension profile.

Sources [2]
Growth rate
Medium

NC State Extension profile.

Sources [2]
Foliage
Deciduous

NC State Extension profile.

Sources [2]
Light
Dappled Sunlight (Shade through upper canopy all day); Full sun (6 or more hours of direct sunlight a day); Partial Shade (Direct sunlight only part of the day, 2-6 hours)

NC State Extension profile.

Sources [2]
Moisture and drainage
Good Drainage; Moist; Occasionally Dry

NC State Extension profile.

Sources [2]
Soil texture
Clay; High Organic Matter; Loam (Silt); Sand; Shallow Rocky

NC State Extension profile.

Sources [2]
Soil pH
Neutral (6.0-8.0)

NC State Extension profile. These source categories do not certify the catalogue’s numeric pH interval.

Sources [2]
Flowering season
Autumn; Summer

NC State Extension profile. Seasons reflect the source region and do not verify the catalogue’s exact flowering months.

Sources [2]
Reported wildlife attraction
Listed as attracting: bees, butterflies, hummingbirds, pollinators.

NC State Extension profile. Broad wildlife categories; this does not establish flower visits by a named bee species or quantify nectar and pollen.

Sources [2]
Native range
Cultivated hybrid; no wild native range is assigned.

Explicit native locality records in Kew WCVP v16; introduced and doubtful distributions excluded. Continent conversion follows the documented geographic mapping.

Sources [3]
Catalogue ratings

Who this plant supports

Honey bees

Medium suitability
Nectar value Medium
Pollen value Unknown
Plant profile

About this plant

Weyer's Butterfly-bush (Buddleja x weyeriana) is a shrub. It flowers from July to September.

Sources and references

References for the information marked with source numbers on this page.

Sources checked
  1. Catalogue of Life Buddleja — Catalogue of Life COL26.8

    COL26.8 (2026-08-20). Contributing checklist: Synonymic Checklists of the Vascular Plants of the World. This is taxonomic evidence, not an independent ecological study.

    Supports: Botanical family
    Relevant sections
    • Botanical family: NameUsage.tsv line 1889604; ID 62H6F; rank genus; status accepted

    Source checked on .

    Source data licence: CC BY 4.0.

  2. NC State Extension Buddleja x weyeriana — Plant Toolbox

    NC State Extension Gardener Plant Toolbox. Growing conditions and seasons reflect its United States horticultural context.

    Supports: TaxonomyMature heightMature spreadPlant habitLife cycleGrowth rateFoliageLightMoisture and drainageSoil textureSoil pHFlowering seasonReported wildlife attraction
    Relevant sections
    • Taxonomy: Main botanical heading (h1)
    • Mature height: Dimensions / Height
    • Mature spread: Dimensions / Width
    • Plant habit: Habit/Form
    • Life cycle: Life Cycle
    • Growth rate: Growth Rate
    • Foliage: Woody Plant Leaf Characteristics
    • Light: Light
    • Moisture and drainage: Soil Drainage
    • Soil texture: Soil Texture
    • Soil pH: Soil pH
    • Flowering season: Flower Bloom Time
    • Reported wildlife attraction: Attracts

    Source checked on .

  3. Royal Botanic Gardens, Kew Buddleja × weyeriana — Kew WCVP native distribution

    Native distribution and taxonomic treatment from the official WCVP v16 export (4 June 2026). The link opens the corresponding POWO taxon. Source rows are retained in the native-range audit archive.

    Supports: Native range
    Relevant sections
    • Native range: WCVP v16; wcvp_names.csv lines 1332448; geographic_area and taxon_status

    Source checked on .

    Source data licence: CC BY 3.0.