Scarlet wisteria is a large, deciduous shrub or small tree that is native to South America. It is also known as red sesbania, black acacia or rattlebox, because the seedpods rattle when shaken. It is a beautiful tree, but can be invasive in warmer regions of the country.
Scarlet wisteria's scientific name is Sesbania punicea. It is a member of the Fabaceae family.
Scarlet wisteria prefers to grow in warm weather. It will grow well outdoors in zones 9 and above. Scarlet wisteria will grow in zone 8, if protected from the cold.
Scarlet wisteria can reach a height of 12 feet tall when grown in prime conditions. It averages in height from six to 10 feet.
The flowers of scarlet wisteria are orange-red in color and grouped into clusters that are four inches long. The flowers bloom in late spring through summer.
The seedpods on scarlet wisteria are three to six inches long and resemble pea-plant seedpods. There are usually six to 10 seeds in each pod.
Scarlet wisteria is an invasive plant in some states. It is an aggressive grower that will choke out native plant species.
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