Allamanda blanchettii (Purple Allamanda)

  • TropPlant Accession Number (TPAN): 0023
  • Botanical Name: Allamanda blanchettii
  • Common Name: Purple Allamanda
  • Cultivar: N/A
  • Family: Apocynaceae
Allamanda blanchettii
Photo by Matthew Gaston

  • Native To: Brazil

Landscaping Information

  • Plant Type: Vine
  • Texture: Medium, Course
  • Form: Vining, Irregular
  • Height (on average, in landscape use): 4'-15'
  • Height to Spread Ratio: Depends on structure it grows on
  • Growth Rate: Fast
  • Landscape Values: Accent, Background, Border, Color, Edging, Facer, Filler, Foundation, Framing, Groundcover, Patio, Quick Effect, Screen, Space Division, Specimen
  • Outstanding Quality: Flower Color, Form/Silhouette

Botanical Descriptions

  • Flowers: White to rose to pink to mauve to lavender to purple colored flowers, 2"- 3" long, broadly funnel shaped corolla.
Allamanda blanchettii bud
Photo by Matthew Gaston

  • Fruits: No notable fruits
  • Foliage Color: Young/immature: Yellow Green. Mature: Bright medium green, to yellow-green
  • Foliage Tip: Acuminate
  • Foliage Base: Acute
  • Petiole: sessile
  • Stipules: N/A
  • Margins: Smooth
  • Leaf Arrangement: Whorled
  • Leaf Shape: narrowly elliptic
  • Leaf Type: Simple
  • Leaf Texture: Pubescent adaxial surface and abaxial midrib
  • Leaf Special Notes: Yellow-green leaves, whorled in set of 3 to 7 leaves. 
Allamanda blanchettii leaves
Photo by Matthew Gaston

  • Bark and Trunk: Young green to maturing at light brown. Beige lenticels

Horticultural Information

  • Light Preference: Semi-Sun
  • Light Tolerances: Shade
  • Soil Preferences: Clay, Loam, Sand, Dry (Mesic), Well-Drained.
  • Tolerances: Moderate Winds, Drought
  • Water Requirements: prefers drier conditions, water moderately to infrequently.
  • Notes on Maintenance: Known to produce abundant root suckers. Needs space to grow or suckers should be removed.
  • Propagation: Cutting
  • USDA Hardiness Zone: 9a
  • Weed Risk Assessment Score (WRA): 4, Evaluate

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