Poison ivy, oak and sumac all can create itchy rashes from urushiol. What you need to know before the rash starts.

The ilex or holly, and the ivy, both evergreen plants are traditional Christmas symbols: the holly for part of the same reason as the Glastonbury Rose is, because it represents the Crown of Thorns ...

I noticed dead spots on my ivy leaves this summer. What is this, and what can I do to help my plants? — Paul Morgan, Park Ridge There are two common types of leaf diseases on English ivy foun… ...

Each leaf has 3 leaflets, hence the adage, “Leaves of three, let it be.” Another key identifying characteristic of poison ivy is that one side of a leaflet may have an irregularly toothed margin, ...

We've all heard the classic saying "leaves of three, let it be," which means don't touch the poison ivy. But just how accurate is that timeless phrase? While this specific mnemonic device exists ...

Leaf of three, let it be. But also, look out for the mitten-looking leaves and the reddish stems—that's a telltale of poison ivy. lightscribe / Deposit Photos ...

Poison ivy has a characteristic compound leaf consisting of three leaflets (so the saying, "Leaves of three, let it be"). The leaflets are 2 to 4 inches long and dull or glossy green with pointed ...

In areas where desirable plants also reside, hand pulling the poison ivy may be the best control Leaves of three? Here’s how to deal with poison ivy, an easy-to-overlook garden guest ...

Poison ivy vines are often found growing up tree trunks, on sides of buildings or growing on or near the ground. In the fall, poison ivy produces one of our most brilliantly colored leaves.