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ALLAMANDA blanchetii

Image of Allamanda blanchetii

Carol Cloud Bailey

Family

Apocynaceae

Botanical Name

ALLAMANDA blanchetii

Plant Common Name

Purple Allamanda

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

A large, evergreen climber native to the tropical areas of Central and South America; purple allamanda is a striking addition to any frost-free landscape.

Pretty violet-shaded flowers are trumpet-shaped, very showy and appear all year in consistently warm climates. This vine has thin, arching, twining woody branches. The bark is brown, furrowed on mature stems and yellow-green on younger branches. These emit a milky irritating sap when broken. The leaves are elliptical in shape, slightly fuzzy, green to yellow-green and appear opposite to one another on the stems. The fruits are spiny seed capsules.

In temperate regions, allamanda may be grown outdoors in containers during the summer months and brought into a greenhouse or conservatory to over-winter. They require full sun and fertile, well-drained, acidic soil for best growth. Though somewhat drought tolerant, they look and grow best with evenly moist conditions. They are heavy feeders and this selection grows best when grafted onto the roots of Allamanda cathartica. Whether grown as a vine or trained as a shrub, purple allamanda makes a wonderful, ever-blooming specimen plant. Use it to impart a tropical feeling in frost-free landscapes and container gardens.

Characteristics

  • AHS Heat Zone

    12 - 10

  • USDA Hardiness Zone

    9 - 15

  • Sunset Zone

    H1, H2, 23, 24

  • Plant Type

    Tender Perennial

  • Sun Exposure

    Full Sun, Partial Sun, Partial Shade

  • Height

    6'-10' / 1.8m - 3.0m

  • Bloom Time

    Indeterminate

  • Native To

    Central America, South America

Growing Conditions

  • Soil pH

    Acidic, Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Growth Rate

    Fast

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Vining/Climbing

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Purple, Lavender

  • Fruit Color

    Green, Purple

  • Foliage Color (Spring)

    Green, Dark Green

  • Foliage Color (Summer)

    Green, Dark Green

  • Foliage Color (Fall)

    Green, Dark Green

  • Foliage Color (Winter)

    Green, Dark Green

  • Bark Color

    Green, Brown

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    Yes

  • Showy Fruit

    Yes

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Coarse

  • Foliage Sheen

    Glossy

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Smooth

  • Usage

    Container, Feature Plant, Hanging Basket, Screening / Wind Break, Topiary / Bonsai / Espalier, Tropical, Vine

  • Sharp or Has Thorns

    No

  • Invasive

    Sometimes

  • Attracts

    Hummingbirds

  • Self-Sowing

    No