Ask the Expert

What shrubs can I use to make a privacy screen?

Question: I would like to install a privacy screen made out of shrubs to create a wall along the road. What would you recommend for something that is good in the climate, some salt exposure and doesn’t require a lot of grooming? Something evergreen or with year round coverage would be ideal. Is there anything […]

Read more

How do you eliminate ragweed from your garden?

Question: My garden has become infested with ragweed. I am planning to skip a year of gardening this year due to other priorities.  Is there anything I can do or plant to reduce or eliminate this ragweed infestation? Answer: Donna Coffin, Extension Professor Thank you for your question on ragweed. A garden can become quickly […]

Read more

What are the spiky round growths on my beach roses?

Question: I have attached a photo of my beach roses taken last fall.  Several of the branches have spiky round growths on them.  These branches seem to be dying.   Are you familiar with this problem and to you have any suggested remedies?   Answer: Lynne M. Holland, Horticulture and Social Media Professional Your beach roses have Mossy […]

Read more

Does the University of Maine Cooperative Extension test soil?

Question: Does the University of Maine Cooperative Extension test soil?  Answer: Jonathan Foster, Special Project Assistant We do indeed perform soil testing, via the UMaine Analytical Laboratory. You can pick up a soil test kit from the any County Extension office or request one directly from the lab (information on their website). That standard soil test fee […]

Read more

How do you prune a lilac that has grown out of control?

Question: I’m looking for help on how to best prune a lilac tree/bush that has grown out of control.  Answer: Liz Stanley,  Horticulture Community Education Assistant For older common lilac stands (Syringa vulgaris) that need renovation, early spring is an excellent time of year to prune. Pruning when they’re still dormant means that you can […]

Read more

What is the best way to plant shadblow bushes in clay conditions?

Question: I recently purchased two shadblow bushes (Amelanchier canadensis). We have very heavy marine clay on our property. I often amend with lots of compost/rich soil, but recently I am hearing more and more about how too much compost can create conditions where the roots just stay in the soil-rich area. Approximately how much compost/rich […]

Read more

How do you manage rust on hollyhocks?

Question: Every year my great hollyhocks are practically destroyed by RUST. They enjoy full sun and super air circulation.  I trim, sanitize my tools constantly and use fungicides to no avail. Wondering if you have any advice? I am thinking of digging and destroying them as it’s way too time consuming at this point. Answer: […]

Read more