Landscaping

One Of My Azalea Bushes Is Dying, But The Others Are Fine

Q: One of the eight azaleas I planted two years ago has had to be replaced twice. Why might I be having trouble with this one bush?  A: Whenever plants die in one spot, I immediately suspect the soil is...

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Azalea planted in soggy soil

Q: One of the eight azaleas I planted two years ago has had to be replaced twice. Why might I be having trouble with this one bush? A: Whenever plants die in one spot, I immediately suspect the soil is...

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Any way to heal a damaged white oak?

Q: I have a 100 year old white oak. It has a few dead limbs, but most limbs are healthy and have leaves. To slow the demise of this old oak should I fill in the hollow with dirt or...

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Abnormally large tithonia

Q: I plant tithonia every year for the butterflies and pollinators. This year in one group of three Mexican sunflowers, the middle sunflower grew to twelve feet tall while the ones on either side grew their normal height of six...

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Boxwood Blight – Replace Boxwoods with Holly

Classic boxwood hedgerows serve as the structural backdrop for many formal gardens but — from Burgundy to Buckhead — the hedges that have kept the fanciest gardens trim and tasteful for decades are under attack. Boxwood blight, a fungal disease...

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White foam (fungus) on treated wood

Q: We recently saw a strange white foam substance on our landscape wall. Any help would be appreciated. A: It is the fruiting body of a fungus that is inside the wood, decomposing it. See Fungus on Treated wood Look...

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Lesser celandine (Fig Buttercup) – Control

Q: Can someone identify this? It’s everywhere this year. A: It is lesser celandine (fig buttercup), Ficaria verna. Although the yellow flowers are attractive, it grows so quickly that it chokes out other plans. Ferns, trillium, and other spring ephemerals...

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Holly dying in same spot

Q: Two hollies have died in the same spot over the last couple of years.. The first one was replaced and now this one has died. I watered in absence of rain for a week. A: It looks to me...

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Sky Pencil holly has dead branches

Q: Any ideas why these branches died? A: I don’t know why ‘Sky Pencil’ holly does this but I have seen it before. Clip the dead branches at a spot below the brown leaves. Use a knife to gently scrape...

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Big white splotch on pine bark

Q: Can you help me identify what might be going on with my tree? It isn’t a mushroom; the white splotches are up about five feet on the trunk. It also has a large hole/crack nearby. A: The white stuff...

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Is dogfennel an ornamental or a weed?

Q: What is this. Should I cut the canes to get it to grow back this year? A: It is common dogfennel,Eupatorium capillifolium. I cannot decide whether it is a weed or an ornamental plant. I love the feathery stems...

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White roots in dead pine needles

Q: I’ve dug up some strange white organic material while planting a hedge row in my back yard. The ground was neglected for several years and is covered with a thick layer of pine needles and pine cones. Should I...

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Caring for tree after machinery damage

Q: I had my front yard dug up due to a collapsed sewer line. The backhoe damaged a six inch square of bark on one side of my mature dogwood tree. Is there anything I should do to ensure better...

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Poorly planted tree in decline

Q: I have a tree in my front yard that is already changing leaf color in early September and has some black ooze coming out of spots on the trunk. A: The root system is in decline, either from poor...

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Separating and planting sago palm pups

Q: My prized sago palm bloomed last summer and died. I kept the stump and now I have eight saplings sprouting up from around the base . When and how should I separate them ? A: Those little pups are...

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Shrub – Transplanting 1-2-3

Most shrubs and trees should be transplanted when the demand for water is least, in late fall or winter. Since many roots will inevitably be lost, they need many weeks to regenerate themselves before the hot, dry blasts of summer...

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Are Zeon zoysia and Geo (BK-9) zoysia the same?

Q: I’ve been told Zeon zoysia and Geo zoysia are the same grass. Do you know if this is true? A: Both grasses are patented. You can read the patents here: Geo zoysia Zeon zoysia They are therefore genetically and...

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Dogwood Planted Too Deep

Q: Just noticed today the debarking occurring on my 2-1/2 year old dogwood. What should I do? A: When I first received this question, photos of only the branches and upper trunk were included. I had a guess of what...

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