5 Trees You Should Never Plant

Honey Locust

Honey locust trees are a safety hazard and a hassle because of their thorny trunks. While the physical aspects are challenging, this species is highly susceptible to infestations and infections. Even if you plant one honey locust tree, it can affect the well-being of surrounding trees and the quality of your yard. We recommend removing the tree if you need to call an exterminator or tree service because of the vermin in the yard. Our arborists can recommend a safer and more durable species for your home.

Black Walnut

A black walnut tree is another tree you shouldn’t grow in your backyard. This species produces toxins that cause contact dermatitis and skin irritation. The tree’s hulls, leaves, and nuts contain juglone, a chemical compound naturally found in walnut trees. With that in mind, green walnut trees also contain juglone, but to a lesser extent than the latter. While contact with a black or green walnut is treatable, people with preexisting skin conditions can get severe injuries.

Sweetgum Trees

Sweetgum trees grow across the United States and can be found in over 29 states. You can identify this species by its spiny fruits and star-shaped leaves. Despite their prevalence, studies show a correlation between environmental damage and sweetgum trees. These trees produce a sap that irritates the skin upon contact, and the fruits attract insects that damage other plants. Although a sweetgum tree in the yard is not a significant cause for concern, you may risk a full-scale infestation with time.

Cottonwood Trees

You may have noticed cottonwood trees in your neighborhood because of their cotton-like seeds. The tree appears harmless, but it can wreak havoc. The leaves are toxic and cause rashes, irritations, and blisters. You can remedy the problem by washing your hands with soap. The seeds are also dangerous, as they cause vomiting, nausea, and diarrhea if ingested.