Landscaping

Do Roots Grow After Pine Tree Is Cut Down?

Q: When a pine tree is cut down do the roots keep growing?  A: They do not. Without the sugar energy coming down from needles or leaves, tree roots don’t have any way to elongate. In addition, plant hormones that...

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Black Under Zoysia Grass

Q: My lawn guy said that my grass needs to be scalped to keep it “healthy”. Underneath the dead grass there’s a lot of black. My zoysia grass has been around for decades and it’s very, very thick.  A: The...

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Vines To Cover Up A Log Pile

Q: I have a pile of fresh logs in an inaccessible ravine on my property. However, it can be seen from the street. What vines do you recommend to cover this so it’s not an eyesore?  A: Four vines immediately...

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Is Golden Jackpot Barberry Invasive Here?

Q: Is the Golden Jackpot barberry invasive here? A: It is hard to know. Japanese barberry is very invasive in some parts of the country, like New England, but does not seem to be as vigorous in the Southeast. Yellow-leafed...

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Differences Between 34-10-10 And 3-4-3 Fertilizer

Q: What is the difference between Azalea, Camellia, Rhododendron fertilizer (34-10-10) and Azalea, Camellia, Rhododendron fertilizer (3-4-3)?  A: As you know, fertilizer products are made by mixing different chemicals together. These chemicals supply the nitrogen, phosphorus, and potassium that plants...

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Sticky Stuff On Hemlock Trees

Q: I have a white, sticky substance on my hemlock trees up at Lake Burton. Any advice would be appreciated.  A: It’s very likely you are seeing hemlock adelgid insects. These sap sucking creatures have killed thousands of hemlocks in...

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Crabgrass Pre-Emergent Shelf Life

Q: Does crabgrass pre-emergent have a shelf life while stored in a bag? A: As long as the product is kept dry and away from temperature extremes, pre-emergents will be effective for at least three...

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“Piggies” Plants From My Childhood?

Q: As a kid, we would hunt what we called “piggies” in the woods. As I remember, the leaves were sort of heart-shaped and when we found them we would bend away the leaves so the little piggies could be...

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Opinion On Hydroponic Gardening?

Q: What is your opinion on hydroponic gardening? A: Hydroponic gardening is lots of fun as a hobby but it’s lots of work as a business. There are several methods of suspending plant roots in nutrient-filled water. You’ll be astonished...

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When To Plant Tomatoes And Peppers

Q: I know it’s customary to wait until mid-April to plant my tomatoes and peppers, but I’m getting antsy. Given the mild winter we’ve had, do you think it would be okay to go ahead or should I hold my...

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Chickweed In My Lawn

Q: My lawn was covered with chickweed last year and this spring! I put down a pre-emergent carefully last fall and watered it in. Why did it not work? A: Since chickweed is an annual plant that sprouts from seed...

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White Grubs In Mondo Grass

Q: I was replacing my dying mondo grass and as I planted the first one I found a white grub. Could that be the cause of my plants dying?  A: White grubs, which eventually turn into various spring and summer...

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Tree healing after wound

Q: Can you please tell us what is going on with our tree? Most of that bump is hard as a rock but some of the edges are crumbly. A: Your Japanese maple suffered an injury that caused internal trunk...

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Arborvitae dry roots and proper planting

Q: Can you identify what’s killing my Emerald Green arborvitae trees? The trees would first get small patches of gray/brown needles. Then, the browning spreads until it consumes the tree. Can you identify what is causing this issue? A: It...

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Azalea and Camellia – Leaf Gall

Q: The leaves on the ends of some of my camellia branches are swollen and thicker than the rest of the leaves. They are also lighter green. I’ve seen this on azaleas but not on camellias. Is it the same...

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Healing a Rising Sun Redbud Planted too Deep

Q: I planted my Rising Sun redbud in the fall 18 months ago. It seems to not be doing well, but there is growth at the very bottom. It had a little life last year, maybe one or two branches....

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Landscaper Chopped Off A Third Of My Encore Azaleas

Q: The community landscape crew used a hedge trimmer to chop off about a third of my healthy, newly-planted Encore azaleas. I presume the spring blooming will not happen but I’m wondering if they will survive this butchering?  A: If...

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How To Lower pH Of Soil?

Q: I’ve been amending my garden with compost for more than ten years. Soil tests every year show P, K, Mg, Ca, and Zn all in the excellent range. My problem is I can’t get the pH lower than 7.0....

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