poisonous peach tree leaves

Poisonous trees, flowers and other landscaping plants around the home

In the two previous sections, we've looked at potentially dangerous house plants, vegetables and poisonous plants we may encounter in the wild. We've also talked about the three most common ways that plants can poison us as well as what to do if you believe someone has been poisoned.

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Here is a partial list of the poisonous flowers, trees and landscaping plants that are fairly common to Western North Carolina. It is not intended to be an all-inclusive list of all known toxic plants or all the possible symptoms that can be caused by these plants.

Amaryllis, narcissus
daffodil, tulip, hyacinth
bulb vomiting, diarrhea, skin irritation
Andromeda all vomiting, weakness
Autumn crocus bulbs, flowers vomiting, diarrhea, respiratory problems, possible death
Azalea all, including flower nectar vomiting, drowsiness, convulsions, possible death
Black locust inner bark, sprouts, seeds vomiting, diarrhea, weakness
Boxwood all vomiting, diarrhea, death possible from large doses
Caladium all mouth irritation, nausea
Cardinal flower all vomiting, weakness, headache, convulsions, possible death
Castor bean all, especially seeds vomiting, diarrhea, skin irritation, death
Cherry, peach, apricot broken seeds, pits, partially wilted leaves, twigs weakness, convulsions, possible death
Clematis all skin irritation, vomiting, diarrhea, dizziness
Delphinium seeds, young plants nausea, skin irritation, death possible
Doghobble, ferterbush leaves nausea
English Ivy all skin irritation, diarrhea, vomiting, coma, death possible
Four O'Clock roots, seeds vomiting, diarrhea
Foxglove all vomiting, diarrhea, irregular heart beat, possible death
Golden chain tree seeds, bark vomiting, weakness, death possible from large doses
Holly berries nausea, vomiting
Hyacinth bean vine raw beans vomiting, weakness
Hydrangea leaves, buds, branches vomiting, diarrhea, weakness
Iris roots skin irritation, vomiting
Carolina Jessamine vine flowers, nectar nausea, weakness, convulsions, death possible
Lantana unripe berries vomiting, weakness, death possible
Lenten rose, Christmas rose roots, leaves vomiting, weakness
Lily-of-the-valley all vomiting, diarrhea, heart irregularity, possible death
Lupine seeds slow respiration & heart
Mountain laurel all, including flower nectar vomiting, drowsiness, convulsions, death possible
Privet foliage, berries vomiting, diarrhea, irregular pulse
Rhododendron all vomiting, drowsiness, convulsions, death possible
Star-of-Bethlehem all vomiting, diarrhea
Tansy all stomach pain, rapid pulse
Wisteria seeds, bark vomiting, diarrhea
Yaupon holly leaves, fruit vomiting
Yew berries vomiting, diarrhea, heart irregularity

ALSO SEE: Poisonous house plants and garden vegetables | Poisonous wild plants in North Carolina

Sources: Potentially Poisonous Plants in the Home and Landscape, Linda G. Blue, Extension Agent, Agriculture - Urban Horticulture, North Carolina Cooperative Extension, Buncombe County Center

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