Q: I have a 3-year-old Burgundy plum tree. The leaves became yellow in March so I applied KeRex iron to the soil when I first noticed the problem. Now the new leaves do not show any yellow in them, ...

When should I spray my purple-leaf plum tree for the mites and disease they seem to get every year? A: That is a problem-prone tree, in my opinion. The dark leaves are nice, but it usually ends up ...

Black knot, a fungal disease, is affecting cherry and plum trees in the Greater Columbus area, likely due to recent wet weather. The disease causes hard, black knots on branches, disrupting growth and ...

Winter is here and yet we’re still getting plenty of gardening questions to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension Service. OSU Extension faculty ...

Maeve asks: When is the recommended period of time to prune the vertical water sprouts out of my ornamental plum tree? Each year they grow several feet. Plum trees are recognized for their tendency to ...

Plums are truly a top-notch fruit, but could you ever grow one from a seed in your own yard? If you're up to the challenge, ...