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JACARANDA puberula

Image of Jacaranda puberula

Alexandre Korte, FloraRS

Family

Bignoniaceae

Botanical Name

JACARANDA puberula

Plant Common Name

Caroba Jacaranda

General Description

The branches of caroba jacaranda become laden with fantastic violet-blue flowers. The trumpet-shaped blooms are produced in airy clusters during the warm days of spring and summer, when the soil isn't too moist. Flowering occurs before the leaves have fully emerged giving the flowers center stage. This increasingly rare native of southern Brazil, Paraguay and northern Argentina is a semi-evergreen to fully deciduous tree that develops an open, rounded, sometimes irregular canopy when mature.

Ferny foliage of medium to dark green cover the branches of this tree throughout the growing season. Individual leaflets have jagged edges. Flowering is most heavy from spring into summer. Clusters of violet-blue to violet-purple trumpet- or bell-shaped flowers appear at the branch tips. These are frequented by bees and hummingbirds and followed by round, woody capsules that split open at the base and release lots of flattened, papery brown seeds. As the weather cools and dries in winter, the leaves drop to reveal an irregular, picturesque tree with grayish tan bark.

Grow caroba jacaranda in full sun and fertile, well-drained soil that is gritty or sandy. In areas where winter frosts are light, it will grow as a multi-stemmed, shrubby, tender perennial. To ensure best flowering, it needs cool, dry winter weather. For this reason, it may only rarely flower if planted in the hot coastal tropics. Flowering may also be inhibited if spring heat is not warm enough.

This jacaranda makes a glorious specimen or street tree. One potential problem is that the fallen flowers may stain pavement, patios or automobile finishes. Soil pH impacts flower color; in alkaline soils, the blossoms are pinker and in acid soils they are bluer.

Characteristics

  • AHS Heat Zone

    12 - 9

  • USDA Hardiness Zone

    9 - 12

  • Sunset Zone

    H1, H2, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Plant Type

    Tree

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    30'-40' / 9.1m - 12.2m

  • Width

    20'-30' / 6.1m - 9.1m

  • Bloom Time

    Spring, Late Spring, Early Summer, Summer

  • Native To

    South America, Argentina, Brazil

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Loam, Sand

  • Growth Rate

    Fast

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Oval/Rounded

  • Seasonal Interest

    Spring, Summer

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Purple, Violet, Blue Violet

  • Fruit Color

    Bronze, Sandy Brown

  • Foliage Color (Spring)

    Green, Dark Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Dark Green

  • Foliage Color (Winter)

    Dark Green

  • Bark Color

    Tan, Gray

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    Yes

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Fine

  • Foliage Sheen

    Glossy

  • Evergreen

    Semi-Evergreen

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Smooth

  • Usage

    Feature Plant, Mixed Border, Shade Trees, Street Trees, Tropical

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    No