Ask the Expert

Was it a weather event that killed branches on my Redhaven peach tree?

Question: Was it a weather event last winter which killed the terminal (fruiting) branches on our Redhaven peach? If so, due you have the dates narrowed down?  Answer: Jonathan Foster, Special Project Assistant  Indeed, it was our combination of generally mild winter and a late brutal cold snap that is wreaking havoc on the peach […]

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Why did my forsythias not bloom this spring?

Question: I have been noticing that many forsythia are not blooming well this spring. Many bushes with very little yellow, some just with yellow at the bottom. Last spring, I saw many large thickets covered top to bottom in bright yellow blooms in yards and roadsides. Is there a reason the forsythia are not beginning […]

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Is the hosta disease, HVX, a problem in Maine?

Question: Is the hosta disease, HVX, a problem in Maine? Answer: Jonathan Foster, Special Project Assistant  As you may know, Hosta Virus X is a contagious pathogen among hostas that causes disfiguring/unsightly leaf mottling, texturing, and, in extreme cases, tissue death. Not all cultivars are equally susceptible, and symptoms can be subtle in some hostas, […]

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Do I need to increase the copper and iron levels in my soil?

Question: Last year I had a soil test done through the University of Maine Cooperative Extension. The copper and iron levels were a bit low (copper=0.10/ iron-2.7). Do I need to increase these levels? How would I do that? I’ve read that the soil pH level affects uptake of these micronutrients. My soil pH is […]

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What is a native plant that can be used to replace lawn turfgrass?

Question: We’re looking to replace our lawn grass with a low-growing, low-maintenance native plant. The area is about a quarter of an acre, in full sun.  Answer: Jonathan Foster, Special Project Assistant  Common groundcover alternatives to turfgrass include creeping thyme (Thymus serpyllum), creeping juniper (Juniperus horizontalis), creeping phlox (Phlox stolonifera), bearberry (Arctastaphyllos uva-ursi), and Dutch white clover (Trifolium repens), […]

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Is there a yellow rose that is hardy to Maine?  

Question: Is there a yellow rose that is hardy to Maine?   Answer: Jonathan Foster, Special Project Assistant  I’ve done a bit of research into yellow roses hardy for Maine and have a few resources for you to consider: Iowa State Univ Extension page on Griffith Buck roses (Dr. Buck spent his career developing roses hardy in […]

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Why are the leaves turning yellow on my clematis vine?

Question: What is happening to my clematis vine? It has yellowing leaves.  This is the second year in a row with the same problem. Answer: Jonathan Foster, Special Project Assistant  There are several potential causes for yellowing in clematis foliage. The only pathological cause we would typically worry about is tomato ringspot virus, but it […]

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Are there small flowers that can be grown in the lawn for spring bloom?

Question: I’d like to know if there are small flowers that can be grown in the lawn for spring blooming that will be either done blooming or low enough when my husband mows the lawn that they don’t get cut? Answer: Lynne M. Holland, Horticulture and Social Media Professional Which low-blooming flowers will work for […]

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How can you control Mugwort?

Question: I have a 500 sq. ft. area that has been left wild for the last 10 years. I recently had it fenced in to keep out the deer. It is mostly covered with golden rod, wild daisies, pussy toes, some sweet fern, grasses, etc., and unfortunately, in part of the area, I believe I […]

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