Ornamental Trees: The False Pink Acacia (Robinia Hispida)
The false pink acacia (Robinia hispida) is a species belonging to the Fabaceae family and originating in the southeastern US, although it has been successfully spread to other countries where its specimens are grown as ornamental trees in parks, Large gardens and streets.
It is a deciduous tree or shrub, capable of growing up to 25 meters in height in a span of 25 years and between 1 and 1.5 meters in diameter of trunk, which is protected by a thick deep black cracked bark.
The false pink acacia possesses leaves composed of 8 to 12 oval leaflets finished in terminal short tip of the leaves of light green color, with petiole and rachis with 5 acute ribs, they are 10 to 25 centimeters in length and they hang of arched stems and covered with dense brown bristles.
This composition creates the ideal background scenery for the attractive and fragrant pink flowers, with flared calf, gibbous, hairy with 5 teeth. They appear in mid and late spring, hanging in clusters 8 to 20 centimeters long, similar in appearance to wisteria.
During the autumn season, after flowering, the fake pink acacia produces very compressed pods 8 to 10 centimeters long by 1 to 1.5 centimeters wide, cinnamon-colored and with a dozen or so orange-colored, contoured seeds Dark with irregular spots blackish. These legumes mature in late autumn and will remain in the tree until the following spring.
One of the most widespread uses of this small tree is the ornamental one, being destined mainly like decorative element, either as a solitary specimen or as part of alignments.
The false pink acacia can grow and develop without problems in any rich garden soil, adapting without problems to dry conditions in full sun or partial shade, as long as it is sheltered from strong winds. Optimal conditions, however, require a place where it receives good natural light, so it is usually recommended to place it against a sunny wall in a moist but well-drained substrate.
Another important advantage that this species offers is its easy adaptation to mild and cold climates, in addition to its ability to withstand strong frost. Multiplication of false pink acacia can be done by using seeds in autumn or hardwood cuttings in spring. It is also used to graft a foot of a specimen of the species to obtain a small tree more vigorous and resistant.