Forest & Kim Starr
The mulga tree is tough yet delicate in appearance, especially when in bloom. It is ideally planted as a small pretty accent tree for residents in desert environments and originates from inland Australia. In its native habitat trees can live for centuries if not damaged by fire. This is unusual among the acacias, which tend to be short-lived.
The trees are evergreen, thornless and have variable and irregular crowns. The leaves are made up of long, linear, needle-like leaf stems that are blue-green....
Michael Charters, www.calflora.net
This unusual acacia is a small tree or large shrub with unique foliage and flowers. It is adapted to dry heat, so it’s perfect for dry southwestern gardens. Leatherleaf acacia is native to the interior of Australia where the seasons are long and dry. It is an upright grower with evergreen spatula-shaped leathery blue green leaves that are much larger than those of other acacias.
This tree blooms from winter into spring with unique flowers held at the ends of the outer twigs. Single stems are...
This tough medium-sized tree is native to eastern Australia where it thrives on arid rocky ridges along the coasts and inland. It has a high degree of drought, salt and wind resistance.
Knife acacia has a large twiggy canopy that becomes cloaked in blue-green leaf-like structures called phyllodes, which are triangular and held very close on the stem. This acacia blooms in spring with large clusters of fragrant bright yellow flowers that are pea-sized and round. They are highly attractive to...
A delightful shade-tolerant acacia for small dryland gardens, this evergreen shrub from Southwest Australia offers delicate foliage and bright blooms. The upright to arching, head-high plants produce fuzzy cylindrical spikes of bright canary-yellow flowers from early to mid-spring. Dainty, pinnately divided, dark green leaves are borne in small tufted clusters along the branches. Pea-like seedpods follow the flowers, maturing to brown.
This frost-tender shrub likes well-drained soil, suffers...
Audrey, Eve and George DeLange
(Sweet Acacia, Texas Huisache)
The soft airy look of this small acacia leaves little clue to its adaptation to North America’s hottest desert climates. Its natural range extends from the American southwest into Mexico, then it has adjunct populations far south in Chile. It is one of the desert acacias that bear sharp thorns to protect themselves from browsing wildlife. The leaves are medium green, very small and fern like.
This tree blooms in early to mid spring with large pompon-like bright yellow flowers that are markedly...
James H. Schutte
(Australian Blackwood, Blackwood)
One of the largest and most cold-hardy acacias in cultivation, this vigorous, medium-sized tree is valued for its toughness, attractive evergreen foliage, and fragrant spring flowers. Native to cool, moist locations in eastern Australia and Tasmania, it rapidly forms an upright tree whose brittle branches are furnished with finely textured, pinnate leaves,or with crescent-shaped, gray-green, leaf-like "phyllodes" (which are actually expanded leaf stems). Mature trees cast moderate to dense shade....
(Bank Catclaw, Trailing Acacia)
This groundcover acacia has proven its value time and again as a first class slope coverage for hot dry banks. In the western United States it is commonly planted in tough locations adjacent to commercial sites and freeways.
Trailing acacia is a native of eastern Australia and is the most widely used prostrate species around the world. Plants bloom in spring with pea-sized yellow puff balls that are concentrated at the base of the leaves along the stems. Its leaves are blue-green, long and densely...
Truly uniform growth make this low-growing, uniform clone far more reliable than standard Acacia redolens. In the western United States it is commonly planted in tough locations adjacent to commercial sites and freeways.
Trailing acacia is a native of eastern Australia and is the most widely used prostrate species around the world. Plants bloom in spring with pea-sized yellow puff balls that are concentrated at the base of the leaves along the stems. Its leaves are blue-green, long and...
Forest & Kim Starr
(Ever-blooming Wattle, Silver Wattle, Water Wattle)
Bearing its sunny fragrant flowers nearly year-round, this fast growing evergreen shrub or small tree is also noteworthy for its attractive foliage and its adaptability.
In spring large sprays of small golden pompon-like flower heads bow the spreading branches of this acacia, attracting numerous bees. The flowers are nicely complemented by the narrow, willowy, gray-green "leaves", which are actually expanded leaf stems known as "phyllodes." Sporadic rebloom occurs throughout the year if temperatures...
(Cooba, Willow Acacia)
This acacia has a weeping habit and willow-like foliage, hence the common name. Like many acacias, it is adapted to hot, arid conditions and is very tough. It’s found across much of Eastern Australia in sunny thickets and open areas. In time it becomes a upright tree with a large dense canopy. It has a tendency to sucker, like willows do, which can be problematic in the landscape.
The leaves of willow acacia are long, thin and dark green. It bears clusters of pea-sized flowers that are fragrant,...