Landscaping

Filbert bush needs pollinator

Q: I harvested one lone filbert nut on my tree. When will the tree mature and give me more? A: Congratulations! You have accomplished the typical yield from a single filbert tree. The reason is that filberts (and hazelnuts) have...

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Sunflowers don’t inhibit other plants

Q: I was told that sunflowers produce toxins in the soil they grow in. Will these gentle giants destroy my surroundings plants? I have had sunflowers in my garden many times and have not noticed a problem with growth of...

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Glyphosate (Roundup) damage to angel trumpet

When John S. asked about the tiny leaves on his angel trumpet, I told him it sure looked like the damage that glyphosate causes on azalea, rose and crapemyrtle. A few days later he replied that he had sprayed Roundup...

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White ooze on Japanese maple trunk

Q: This is on the trunk of our Japanese maple. Do you know what this could be? A: It looks like there has been considerable damage to the trunk some time previously. I can?t tell whether it came from the...

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When to harvest garlic

Q: Now that my garlic plant has this beautiful bloom will it have a garlic bulb or onion to harvest or do I just leave it? A: By the time the plant flowers, garlic may be a little past optimum...

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White sticky stuff on Japanese maple branches – Planthoppers

Q: I have attached a photo of a Japanese maple that we planted two months ago. It has developed a white sticky residue on some of the limbs and trunk. We can see a little white moth looking bug. A:...

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Hydrangea – Identification and Pruning

Q: I have hydrangeas on some new property. I would like to prune them but am unsure which hydrangeas I have, and therefore when to prune them. How do I tell them apart? A: In my garden, the color and...

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Weed killer spilled on shrub (holly) roots

Q: I had a little accident with either undiluted Weed-B-Gon or Roundup about 6 weeks ago. While I was behind my Robin hollies at the water spigot, the bottle turned over and about a quart of product went into the...

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Best Time To Seed My Lawn With TifTuf Bermuda?

Q: When is the best time over seed my lawn with TifTuf bermuda?  A: You can’t overseed with TifTuf because it is a hybrid plant. It does not produce seeds. TifTuf bermudagrass was hybridized by University of Georgia researchers. It...

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Creating A Shade Garden Where Soil Is Clay

Q: I am trying to create a shade garden under several large white oaks where the soil is dense clay. How can I amend it? I have seen something called an air spade that injects compressed air to break up...

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When Is The Best Time To Trim A Snowball Bush?

Q: When is the best time of year to trim a snowball bush? My bush is ten feet tall and I want it shorter.  A: The best time to prune snowball bush, Viburnum macrocephalum, is after it finishes blooming and...

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How To Cure Cedar Rust

Q: My cedar developed cedar rust. I can pull the brown walnut-like things off but is there any way to cure the disease?  A: There is no way to cure cedar trees that have cedar-apple rust. You can pick off...

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Fan Palm With Seed Pods On It

Q: I have a twelve-year-old fan palm outside. The tree has seed pods on it. How and when can I take the seed pods off and plant them?  A: There are several different plants that are called fan palm. In...

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Is There A Way To Change Flower Color On Oakleaf And Tree Hydrangeas?

Q: Is there a way to change flower color on oakleaf and tree hydrangeas?  A: No, the old-fashioned bigleaf hydrangea is the only one that responds to soil pH to change flower color. Oakleaf hydrangea flowers are white when they...

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Starting A Vegetable Garden On A Sunny Cow Pasture

Q: We are moving out in the country and I’d like to start a vegetable garden. Our property is on a sunny former cow pasture. I’d like to grow corn, squash, cucumbers, tomatoes, okra, and maybe potatoes. Any suggestions on...

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Can I Leave Caladiums Among Tulips And Daffodils?

Q: I have an area where I want to put caladiums amongst tulips and daffodils. Can I leave them in the ground all year and expect a nice show?  A: Caladiums rarely survive winter cold in the ground outdoors. I...

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My Witchhazel Never Flowers

Q: I have a spring-blooming witchhazel. It looks healthy but never flowers. I pruned it late fall to see if that might stimulate something.  A: If you pruned it in the fall, that’s the whole problem. Some witchhazels bloom in...

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Red Dogwood Tree – Trunk Is Dead But New Growth From Base

Q: We have a six-foot red dogwood tree we planted last spring. The main center trunk has died but it has some new growth coming from the base. Should we remove the dead part and save the new growth?  A:...

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