Conifer trees are pretty hardy, but they are still prone to turning brown. Here is what to do if you notice rust-colored ...

Though conifers may or may not lose their needles annually, most are indeed evergreen. Trees of this classification have needle-like or scale-like foliage and usually renew many leaves annually.

Garden experts share their favorite conifer tree species as well as the best tips for growing conifers in your backyard.

On true pine trees and larches, needles are arranged and attached to the branches in bundles or clusters with two, three, or five needles per bunch, however, the needles of other conifers ...

Conifer needles consume oxygen in early spring even during the day, new research shows. Credit: Stefan Jansson Plants give us oxygen through photosynthesis—this is commonly taught in school.

“Conifer needles have varying life spans, depending on the species and environmental conditions,” said Lerner. “White pine and arborvitae needles live for 2-3 years, Austrian and Scots pine needles ...

The easiest way to identify a conifer is by its leaves, which are called needles. Needles are usually quite narrow, and they have a wax coating to keep water inside during winter and other dry times.

In contrast, evergreen conifers, by hanging onto their needles, grant those needles multiple growing seasons to contribute to their tree’s balance sheets. That’s the real benefit to staying green.

In contrast, evergreen conifers, by hanging onto their needles, grant those needles multiple growing seasons to contribute to their tree’s balance sheets. That’s the real benefit to staying green.

The umbrella part, at least, offers some insight: The lustrous, oversized needles are arranged in whorls of up to 30, like the spokes of an exceptionally well-reinforced parasol.

Why do evergreen conifers sit out this blazing seasonal spectacle? Mixed among those bright, colorful patches are some trees that stay steadfastly green. Skip to content ...