A few weeks ago Pat Eisenach wrote me that she is concerned about the spread of English Ivy. "I have noticed more and more trees that are being covered by ivy; in yards, in city parks, in Reynolda ...

English ivy (Hedera helix) just has a timeless look to it, don't you think? Whether it's filling bare patches of garden or climbing up an ancient home's wall, that lush green vine is a sight to behold ...

You may be aware of an urban forest in Portland by the name of Forest Park, which contributes greatly to the well-being of the city and those that live in it. The many trees filter the air and absorb ...