Q: I heard that you shouldn’t use wound sealer when pruning your trees — that it does more harm than good. Is this true? A: Yes, it’s true. When pruning your trees, you should not use any sealer on ...

Q: I have a Desert Museum palo verde that was damaged during a windstorm. One of the branches blew off and damaged the trunk. It is an eyesore. Should I replace it? A: I would let the tree heal on its ...

Trees are one of the longest lived and largest organisms on earth. Trees use energy so efficiently that very little waste occurs. Wood is stored energy in the form of cellulose. New living wood is ...

A new antimicrobial drug derived from the sap of an Australian tree has shown promise for treating chronic wounds in animal tests. Chronic wounds are common in people with diabetes, because poor ...

Researchers have confirmed what Indigenous Australians have long known: native plants have great healing properties. A study has found that two plants show great potential for healing wounds quickly ...

IF YOU are a regular reader, you will know of my weird fascination with traditional horticultural practices that endure for decades despite being resoundingly debunked by science. In this article, ...