Poison ivy is the bane of many summer gardeners, but just because the leaves are gone doesn't mean it's harmless in winter.

For the past few summers, Elkins Park homeowner Laura Frank has been managing the poison ivy in her yard on her own. This year, though, the patch in her front yard exploded, seemingly overnight. “I ...

It might be tempting to remove poison ivy in the winter when the plant is relatively dormant, but there are several reasons ...

Just the mention of the words “poison ivy” may have some of you itching already. The Johnson County Extension gardening hotline receives numerous requests for identification and control each summer.

A few years ago I was leading a group of Merrimack College ecology students on a nature walk, when one of them pointed to a vine with five leaflets per leaf, and asked if it was poison ivy. “No,” I ...

If you were a Girl Scout or a Boy Scout, you probably heard the adage "leaves of three, let them be" to deter you from getting poison ivy rash. And, while it is true that a poison ivy leaf contains ...

Poison ivy usually grows as a vine, but can also take on a bushy form. It can grow anywhere and its appearance changes throughout the year, and it looks like dozens of innocent plants, such as ...

Mason Heberling, associate curator of botany at the Carnegie Museum of Natural History, holds a poison ivy specimen collected in Lehigh County, Pa. in 1840, the oldest used in the study. A new study ...

MINNEAPOLIS (WCCO) - At some point, most of us will either come into contact with poison ivy or know someone with the telltale rash. According to the CDC, roughly 90 percent of people exposed to the ...

Leaf diseases are off to a good start this season due to the cool, wet late spring. Disease-spotted leaves are a given on some plants any year around this time, but the cool, wet start to this growing ...