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  Buddleja davidii Franch.
  Family Name : Scrophulariaceae

  Synonyms : Buddleja davidii var. alba, Buddleja davidii var. glabrescens, Buddleja davidii var. magnifica, Buddleja davidii var. nanhoensis, Buddleja davidii var. superba, Buddleja davidii var. veitchiana, Buddleja davidii var. wilsonii, Buddleja shaanxiensis, Buddleja shimidzuana, Buddleja striata, Buddleja striata var. zhouquensis, Buddleja variabilis, Buddleja variabilis var. magnifica, Buddleja variabilis var. nanhoensis, Buddleja variabilis var. prostrata, Buddleja variabilis var. superba, Buddleja variabilis var. veitchiana, Buddleja variabilis var. wilsonii

  Common Names : Butterfly Bush, Summer Lilac, Buddleia, Orange-Eyed Butterfly Bush

  Chinese Name : 大叶醉鱼草

Butterfly Bush,Summer Lilac,Buddleia,Orange-Eyed Butterfly Bush
  • Record Info
    • Featured in '1001 Garden Plants in Singapore' Book (2ed) :
  • Life Stage & Characteristics
    • Plant Division :
      Angiosperms (Flowering Seed Plants) (Dicotyledon)
      Plant Growth Form :
      Shrub (Woody)
      Lifespan (in Singapore) :
      Mode of Nutrition :
      Plant Shape :
      Weeping / Pendulous
      Maximum Height :
      1.8 m to 3.7 m
      Maximum Plant Spread / Crown Width :
      1.2 m to 4.6 m
  • Biogeography
    • Native Distribution :
      Northwestern China, Japan
      Native Habitat :
      Terrestrial (Mountain; Riverine; Disturbed Area / Open Ground)
      Preferred Climate Zone :
      Temperate, Mediterranean
      Local Conservation Status :
      Exotic (Horticultural / Cultivated Only)
  • Description & Ethnobotany
    • Plant Morphology :
      Growth Form: Woody shrub with a weeping form. It is semi-evergreen in tropical climates.
      Foliage: Opposite leaves are lance-shaped and often have a serrate leaf margin (15 - 25 cm long). The leaf is green on top, but whitish with downy hairs on the bottom.
      Stems: Stems are four-sided and flexible. They tend to bend in an arch, especially under the weight of a large inflorescence.
      Flowers: Flowers are small and trumpet-shaped (7 - 9 mm wide). They are usually purple (but sometimes white) with an orange-yellow throat. Flowers are arranged in a branched, conical-shaped inflorescence (20 - 46 cm long). Inflorescences occur at the branch tips. 
      Fruits: Dehiscent, dry fruit is known as a capsule (8 mm long). Fruit is narrowly ellipsoid or ovoid. One seedling can produce about 3 million seeds in one year.
      Habitat :
      Thrives in disturbed areas that may be moist or dry. Occurs near roadsides, rivers and along rocky slopes. This plant is considered invasive in northwestern USA and New Zealand.
      Cultivation :
      This species is easy-to-grow and requires little maintenance. Plant this species in well-drained soil. It grows best on nutrient rich soils, but also tolerates nutrient poor soils. This species grows aggressively, so control its spread by removing spent flowers before they produce seeds. To promote larger and more abundant blooms, hard prune and pinch off dead flowers. This species is susceptible to the beetle Mecysolobus erro (stem borer) and the weevil Cleopus japonicus (leaf chewer).
      Etymology :
      The genus "Buddleja" was named after an English botanist named Adam Buddle (1660 - 1715). The species epithet "davidii" was named after a French Jesuit missionary named Pere Armand David (1826 - 1900) who also enjoyed studying nature.
      Ethnobotanical Uses :
      [Others]: Black or green dyes can be extracted from the flowers, leaves and stems. 
  • Landscaping Features
    • Landscaping :
      This species is ideal for butterfly gardens. Its fragrant flowers will attract butterflies seeking nectar. Large specimens should be placed in the background. Consider planting this species alongside other butterfly nectar plants such as Pentas lanceolataLantana camara, and Stachytarpheta indica. You should also include host plants like Calotropis gigantea and Asclepias curassavica. This species can also be planted as a hedge or border.
      Desirable Plant Features :
      Ornamental Flowers, Fragrant (Flowers: Day)
      Plant & Rootzone Preference/Tolerance :
      Well-Drained Soils, Poor Infertile Soils, Fertile Loamy Soils
      Usage Hazards / Cons :
      Invasive / Potentially Invasive
  • Fauna, Pollination & Dispersal
    • Associated Fauna :
      Butterfly Food Plant, Bee-Attracting
      Pollination Method(s) :
      Biotic (Fauna) (Insects (Butterfly, Moth); Insects (Bee))
      Seed / Spore Dispersal :
      Biotic (Fauna) (Associated with: Also by motor vehicles), Abiotic (Wind; Water)
  • Plant Care & Propagation
    • Light Preference :
      Full Sun
      Water Preference :
      Moderate Water
      Plant Growth Rate :
      Maintenance Requirements :
      Propagation Method :
      Seed, Stem Cutting
  • Foliar
    • Foliage Retention :
      Drought / Semi-Deciduous
      Mature Foliage Colour(s) :
      Mature Foliage Texture(s) :
      Foliar Type :
      Simple / Unifoliate
      Foliar Arrangement Along Stem :
      Foliar Shape(s) :
      Non-Palm Foliage (Lanceolate)
      Foliar Venation :
      Pinnate / Net
      Foliar Margin :
      Serrate / Toothed
      Foliar Apex / Tip :
      Foliar Base :
      Rounded / Obtuse
      Typical Foliar Area :
      Notophyll ( 20.25cm2 - 45 cm2 )
      Leaf Area Index (LAI) * for Green Plot Ratio :
      4.5 (Shrub & Groundcover - Dicot)
  • Non-Foliar & Storage
    • Stem Type & Modification :
      Root Type :
      Underground (Tap Root)
  • Floral (Angiosperm)
    • Flower & Plant Sexuality :
      Bisexual Flowers
      Flower Colour(s) :
      Purple, White
      Flower Symmetry :
      Individual Flower Shape :
      Flower Size :
      Remarks (7 - 9 mm long)
      Inflorescence Type :
      Flowering Opening Time :
      Flowering Habit :
  • Fruit, Seed & Spore
    • Mature Fruit Colour(s) [Angiosperms & Gymnosperms] :
      Fruit Classification :
      Simple Fruit
      Fruit Type :
      Dehiscent Dry Fruit (Capsule)
The information given on this website has been compiled from reference works on medicinal plants and/or pron only. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Reliance on this information is strictly at your own risk. You should always consult your physician before using or consuming a plant for medicinal purposes.

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