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

A moth may be the culprit of hydrangea leaves curling upward in your garden, but it’s not much to worry about.

The plant then folds up its leaves or even collapses a branch. It’s probably a defense mechanism against grazing animals, Woltman says. Or perhaps insects? If you were facing the mouth of a ...

Learn the best way to harvest rosemary so that the plant regrows and you always have fresh, fragrant herbs to use in your ...

or leaf stalk, where it attaches to the stem or branch. “None of this would happen without the plant hormones,” Dr. Day said. Which hormone is at work in leaf drop? Not abscisic acid ...

Palmately compound leaves do not have rachises as each palmate branches out directly from the petiole, though each petiole may also branch off ... to identify a tree or plant as a palmately ...

A new plant-leaf-poking sensor could soon help them do so, by sending an alert as soon as the plant gets stressed. Plants of all types continuously produce hydrogen peroxide (H2O2) as part of ...