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, ...

We have a purple plum tree that has given us very tasty plums for a number of years. This year, however, its branches are burdened down with hundreds of plums that won't ripen. The plums are various ...

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 ...

Can you help me with two damson plum trees? I purchased these trees bare-root and planted them probably five years ago. They have flourished and now stand 8 to 10 feet tall. I have had them ...

Q: My homeowners association requires a replacement for a dying plum tree with something similar. I want to plant a more drought-tolerant, low-maintenance small tree. Any suggestions? A: I am guessing ...

Answer: This is a great question. The short answer is “when the trees are fully dormant,” so any time before they flower or leaf out in the spring. But I’d like to know more before giving a full ...