That beautiful flowering tree may be tempting, but you'll want to think twice before adding these to your yard because of ...

This winter many urban ash trees are covered with unusual growths called ash staminate flower gall. An infected tree's twigs are covered with crumbly brown or black growths that look like flowers.

It means trees such as ash which flower first are flowering earlier, and the number of subsquent days until their leaves unfold could have risen by 7.8 days since in the past 10 years.

Galls on ash tree formed by ash flowergall mites are more of an interesting nuisance than a real threat, as they do not harm the tree at all. Photo credit Judy Nickell. My understanding is that ...

The Ash is Ireland's most common, tall native tree. It is not in leaf yet but is coming into flower. The Ash is wind-pollinated, so it needs to flower before the leaf buds open so that its pollen ...