What are the different types of locust tree
William Taylor
Updated on April 04, 2026
Black Locusts.Honey Locust.Skyline Honey Locust.Bristly Locust.Skycole Locust.Imperial Honey Locust.New Mexico Locust.Purple Robe Black Locust.
Are there different kinds of locust trees?
The two most common types of locust trees are black locust (Robinia pseudoacacia), also called false acacia, and honey locust (Gleditsia triacanthos) and both types are North American natives.
What type of locust tree has thorns?
The native species of honey-locust has large thorns on its stems and bark. For this reason, thornless honey-locust is most commonly sold.
How do you tell the difference between a black locust and a honey locust tree?
Bark and Thorns: The black locust tree has bark of a dark color with a pattern of furrows that look like rope that’s intertwined. Honey locust trees, on the other hand, can have brown or gray bark, and you’ll see clusters of red-brown thorns among the branches or single thorns lining each stem.Should I plant a black locust tree?
While some have named it an “invasive” tree given its rapid growth and willingness to spread by seed and root suckering, others see these characteristics as advantageous, if only populations are properly managed to harness these qualities. Make no mistake, locust is not a tree to plant and walk away from.
Which locust trees have seed pods?
Many varieties of locust grow in the U.S., with honey locust and black locust being most common. Honey locust has pods that contain edible seeds, while the pods of other locust tree varieties are primarily for reproductive use.
Is a locust tree a good tree?
Locust trees are excellent for erosion control and tolerate urban pollution and road salt spray well, so they are good trees to plant on graded areas and near roads and driveways. Some locusts grow quite tall, so allow enough space between trees that they will not be crowded when they reach their mature height.
What locust tree does not have thorns?
The imperial honey locust tree is a thornless species of deciduous tree that grows up to 40 ft. (12 m). The fact that this locust tree has no thorns and a wide-spreading canopy means it is a great shade tree for your garden.What tree looks like a honey locust?
The honey locust (Gleditsia triacanthos), also known as the thorny locust or thorny honeylocust, is a deciduous tree in the family Fabaceae, native to central North America where it is mostly found in the moist soil of river valleys.
Does a black locust tree have thorns?Detail of a black locust thorn. Beware: some of the black locust’s branches feature sharp thorns! A remarkable feature of the black locust is its ability to grow new branches by sprouting new roots and shoots. The tree grows with a single leader and thorns can be found on the trunk or branches.
Article first time published onIs black locust sawdust toxic?
I wear a respirator, but running a manual mill and having the dust thrown onto you, it only does so much. “Toxicity: Black locust is poisonous to all animals if ingested. Although fatal cases are rare, recovery may take several days or even weeks.
Are there male and female locust trees?
The honey locust in polygamo-dioecious, which means that the species has unisexual flowers with male (staminate) and female (pistillate) flowers on different trees, but also some perfect flowers (both male and female parts) on each tree. … The flowers tend to appear in the late spring and early summer.
What is a locust tree good for?
Fig. 1. Black locust wood is useful for lumber, paper pulp, posts, and fuel. This clone growing in Hungary is straighter than most trees in North America, where borer insects and heredity typically produce crooked trunks.
Are locust trees male and female?
Honey locusts are often dioecious, meaning that trees have either male or females flowers, but it is not always so. Both male and female flowers are greenish-white, fragrant, hanging clusters. Female flowers develop into large, flat, dark brown seed pods, typical of fabaceous plants.
What is the lifespan of a honey locust tree?
The fruit is a legume 8 to 16 inches (15-40 cm) long and 1 to 1.4 inches (2.5-3.5 cm) wide [8,11,22]. Honeylocust is usually described as rapid-growing [8,39]. Average longevity for honeylocust is 125 years [8].
Is the honey locust tree poisonous?
Honey locust can produce numerous thorns that are capable of puncturing implement tires. Though not listed as a toxic plant, contact with thorns often results in sore wounds that are slow to heal.
Does black locust tree make good firewood?
One lesser-known tree that makes great firewood is black locust. … Not surprisingly, the same density and durability that makes black locust good for fence posts also makes it among the best firewood trees.
Is black locust a hardwood?
Black Locust wood is a hardwood with a Janka hardness scale of 1,700 lbf (7,560 N).
Can you top a black locust tree?
Use caution when working around the locust tree; the thorns are extremely sharp and puncture wounds may become infected. Never top the main trunk of a tree; if it will interfere with power lines when mature, select a smaller tree species.
How long does it take for a locust tree to grow?
Honey locusts are hardy, strong and commonly able to tolerate wind storms, ice, soil compacting foot traffic, and pollution. They also grow fast – about 20 feet high in their first decade – and eventually up to 70 feet.
Do locust trees have deep roots?
Honey locusts have strong, deep taproots that extend as far as 20 feet down as opposed to most trees, which only extend 3 to 7 feet beneath the surface However, unlike the classic tap root system, honey locust trees also have profusely branching roots, as is characteristic of heart root systems.
How big does a honey locust tree get?
Mature Size The thornless honeylocust grows to a height of 30–70′ and a spread of 30–70′ at maturity.
Can you eat locust tree pods?
Edible parts and other uses Only the fruits of honey locust are considered edible. The sweet and fleshy pulp of the bean pods can be eaten raw or extracted and used in a variety of ways. From smoothies, to beer. It has a sweet honey like taste, hence its name.
Do locust trees make good fence posts?
Black locust makes great fence posts. I wouldn’t bother debarking, (but the bark will rot eventually) as the man rightly told you, just make sure your post is at least 5″ heartwood. Red cedar is same way preferably 5″ red heartwood, debarking unnecessary.
Is thornless honey locust invasive?
The common honey locust, or thorny locust (Gleditsia triacanthos), of North America is a popular ornamental plant, though it is an aggressive invasive species in some areas outside its native range.
Why are black locust trees dying?
Bark beetles and roundheaded borers may bore into black locust tree branches. Bark beetles can cause the outer tips of branches to die, which is a condition called “flagging.” They mine into the branches up to 6 inches from the tip, causing the end of the branch to die. … The dying branches should be removed and burned.
Are black locust trees worth money?
Black Locust wood contains natural organic compounds that resist rot for 100 years or more, which makes these trees an extremely valuable and environmentally friendly tree. It is the perfect wood for fence and deck posts.
What part of black locust is poisonous?
The Black Locust inner bark, roots, and twigs are poisonous to livestock, especially horses, and can be fatal. The seed is poisonous to humans.
Is black locust good for cutting boards?
New User. Woods to stay away from: spalted anything, black locust (the bark will kill a mule), most cedars, pine, any wood the bugs won’t eat and a lot of the exotics.
Is a honey locust tree good for firewood?
Honey Locust – Honey locust firewood is excellent for burning. It is a very dense hardwood that puts out a lot of heat and a very long burn. For firewood, it is comparable to black locust as far as heat output. It is a wood that can spark and pop so best to have a closed fireplace or wood stove when burning indoors.