Sweet Acacia

Common Names

Huisache, Texas Huisache, Sweet Acacia, Perfume Acacia, Mealy Acacia, Mealy Wattle, and Cassie.

Latin Name

Vachellia farnesiana var farnesiana

Sweet Acacia (Vachellia farnesiana var farnesiana)
Sweet Acacia (Vachellia farnesiana var farnesiana)

Family

(Fabaceae) pea family 

Form

A thorny, evergreen, shrub that grows to a height of 8 – 15 feet, and just about as wide. 

Leaves

Leaves are alternate and bipinnate.  Leaflets are less than 1 cm in length and are in pairs of 10 – 25.

Sweet Acacia (Vachellia farnesiana var farnesiana)
Sweet Acacia (Vachellia farnesiana var farnesiana)

Flowers

Sweet acacia produces many bright yellow globe shaped flowers that are approximately 1-2 cm in diameter. The small yellow orbs appear most of the year.  The flowers are fragrant and appear all year in Florida.

Sweet Acacia (Vachellia farnesiana var farnesiana)
Sweet Acacia (Vachellia farnesiana var farnesiana)

Fruit

Sweet acacia produces large, thick, bean pods that are green when immature and brown once they mature.

Habitat

Sweet acacia occurs naturally in coastal forests, shell middens, pinelands, and disturbed sites

Sweet Acacia (Vachellia farnesiana var farnesiana)
Sweet Acacia (Vachellia farnesiana var farnesiana)

Native Range

It is native to AL, AZ, CA, FL, GA, LA, MS, NM, and TX.

Landscape Use

Sweet acacia can be grown in the home landscape in dry soils in full sun.  If the area is moist it must be well drained so as not cause root rot. It is very drought tolerant and once established and requires little, if any, maintenance. It is salt tolerant, and can tolerate temperatures down to 20 degrees.

Placement needs to be carefully considered because of the thorns, and the fact that acacia can become clonal and form a dense thicket.

It grows in zones 9 to 11.

Sweet Acacia (Vachellia farnesiana var farnesiana)
Sweet Acacia (Vachellia farnesiana var farnesiana)

Wildlife Uses

The fragrant flowers attract a number of pollinators, but mostly bees and wasps. 

The butterflies that visit are generally the smaller species such as hairstreaks and skippers.

Songbirds forage among the branches for insects. 

Deer eat the seed pods, and game birds such as quail and doves eat the seeds once the pods open and fall to the ground.

Propagation

Can be grown easily from seed and transplanted when small.  Some may have luck with rooting cuttings.

Please buy Florida ecotype seeds from me here at my Ebay store!

Sweet acacia (Vachellia farnesiana var farnesiana)
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