Allamanda cathartica 'Stansill's Double' (Stansill's Double)

  • TropPlant Accession Number (TPAN): 0155
  • Botanical Name: Allamanda cathartica 'Stansill's Double'
  • Common Name: Stansill's Double
  • Cultivar: 'Stansill's Double'
  • Family: Apocynaceae
Allamanda cathartica 'Stansill's Double'
Photo by Matthew Gaston

  • Native To: Tropical South America

Landscaping Information

    • Plant Type: Vine
    • Texture: Dense, Coarse
    • Form: A vine - Upright to Weeping/Pendent to Irregular
    • Height (on average, in landscape use): N/A.
    • Height to Spread Ratio: N/A
    • Growth Rate: Medium
    • Landscape Values: Color, Edging, Facer, Filler, Foundation, Framing, Hedge (potentially), Patio, Quick Effect, Screen, Groundcover, Space Division, Specimen, Windbreak, Erosion Control, Green Wall
    • Outstanding Quality: Flower Color, Fragrance
    Allamanda cathartica 'Stansill's Double' trimmed as a shrub
    Photo by Matthew Gaston

    Botanical Descriptions

    • Flowers: 3" long, 2.5"-3" wide, bright yellow, slightly fragrant: spicy cinnamon and sweet jasmine aroma, two whorls of petals. 
    Allamanda cathartica 'Stansill's Double' flower
    Photo by Matthew Gaston

    Allamanda cathartica 'Stansill's Double' flower
    Photo by Matthew Gaston
    Allamanda cathartica 'Stansill's Double' reverting to the wildtype flower (1 whorl of petals)
    Photo by Matthew Gaston

    • Fruits: Rarely seen or produced.
    • Foliage Color: Young/immature: Yellow Green. Mature: Bright medium green to yellow-green
    • Foliage Tip: Acute
    • Foliage Base: Attenuate
    • Petiole: none, 0"
    • Stipules: N/A
    • Margins: Undulate
    • Leaf Arrangement: Whorled
    • Leaf Shape:  elliptic
    • Leaf Type: Simple
    • Leaf Texture: Waxy, rubbery, glabrous, somewhat thick, slightly pubescent on the abaxial midrib.
    • Leaf Special Notes: Rubbery bright green leaves in whorls add dense green to an area. The leaf is toxic, as well as the rest of the plant.
    Allamanda cathartica 'Stansill's Double' adaxial leaf surface
    Photo by Matthew Gaston

    Allamanda cathartica 'Stansill's Double' abaxial leaf surface
    Photo by Matthew Gaston

    Allamanda cathartica 'Stansill's Double' Note the whorled leaf arrangement
    Photo by Matthew Gaston

    • Bark and Trunk: smooth, violet and green when young then light brown when mature.

    Horticultural Information

      • Light Preference: Full Sun.
      • Light Tolerances: Semi-Sun
      • Soil Preferences:  Loam, Sand, Organic, Dry (Mesic),Well-Drained.
      • Tolerances: Humidity, Drought
      • Water Requirements: Moderate watering. Enjoys letting the soil go dry between watering. Considered semi-drought tolerant and in Florida is used in Xeriscaping.
      • Notes on Maintenance: Susceptible to White Fly and spider mites. This plant is a wine, so plant it where it can climb or fill into a large space. Trimming it into a bush is possible, yet not the best use of this tropical vine. All parts of this plant are toxic. 
      • Propagation: Cutting
      • Minimum USDA Hardiness Zone: 10b
      • Weed Risk Assessment Score (WRA): -2, Low Risk

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