Poison Ivy Some harmless plants are mistaken for poison ivy (young box elder seedlings, for instance) but you’ll know for sure if you develop an itchy rash after coming in contact with the sap, which ...

Japanese Knotweed can quickly take over your backyard, destroying concrete and threatening other plants as it spreads. Be ...

This column is written by the Master Gardeners of Yolo County each month. It provides answers to selected questions that ...