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PASSIFLORA quadrangularis

Image of Passiflora quadrangularis

Forest & Kim Starr

Family

Passifloraceae

Botanical Name

PASSIFLORA quadrangularis

Plant Common Name

Giant Granadilla

General Description

This spectacular, large-fruited woody vine is native to both South America and the West Indies, although its origin is debated because it was cultivated so early and may have traveled somewhat as cultures discovered its crop. In any case, this is a tropical climber that may survive colder conditions where it will die back to the ground and recover from the roots. The plants are evergreen, sprouting into long stems that root as they touch ground, with the potential to be somewhat invasive. The leaves are lobed, dark-green and leathery, but born somewhat sparsely. The vines can become very large and climb by tendrils produced in the leaf axils (joint between the leaves and stems).

The gorgeous flowers are produced singly or in pairs. They have prominent, pronged reproductive structures surrounded by an exceptionally large cup-shaped fringe of dense showy filaments striped in purple and yellow green. They are absolutely exquisite close up. This is a long bloomer, showing color nearly all year around in frost-free climates where it thrives. The large greenish yellow to orange fruit are the size of a hefty garden cucumber and are sweet and delicious when ripe. While plants can be grown in a sunny room or greenhouse they are really too large to perform there. Generally, they prefer full sun and well-drained soil. Grow passion vines on trellises or other supports for the lovely flowers and abundance of butterflies and hummingbirds they attract. Passionflowers are nectar sources and the leaves are larval food for several butterfly species, but the caterpillars can cause the leaves to look tattered and chewed.

Characteristics

  • AHS Heat Zone

    12 - 10

  • USDA Hardiness Zone

    10 - 15

  • Sunset Zone

    14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Vine/Liana

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    0'-50' / 0.0m - 15.2m

  • Bloom Time

    Spring, Late Spring, Early Summer, Summer, Late Summer, Early Fall, Fall

  • Native To

    Latin America and the Caribbean, South America

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Very Fast

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Vining/Climbing

  • Seasonal Interest

    Spring, Summer, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Yellow, Purple, Salmon

  • Flower Color Modifier

    Multi-Color

  • Fruit Color

    Orange, Yellow Green

  • Foliage Color (Spring)

    Dark Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Dark Green

  • Foliage Color (Winter)

    Dark Green

  • Fragrant Flowers

    No

  • Fragrant Fruit

    Yes

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    Yes

  • Showy Fruit

    Yes

  • Edible Fruit

    Yes

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Glossy

  • Evergreen

    Yes

  • Showy Bark

    No

Special Characteristics

  • Usage

    Container, Cutflower, Edible, Feature Plant, Fruit / Fruit Tree, Hanging Basket, Rock Garden / Wall, Topiary / Bonsai / Espalier, Tropical, Vine

  • Sharp or Has Thorns

    No

  • Invasive

    Sometimes

  • Attracts

    Hummingbirds, Butterflies

  • Self-Sowing

    Yes