Gardening Q and A

Growing Globe Artichokes

Q: My son would like to try to grow globe artichokes in our garden this year. Do you have any advice regarding this plant? A: Globe artichoke, Cynara scolymus, is a member of the thistle family. It might grow perennially...

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Peat Pots – Planting in Garden

Q: I am starting my vegetables from seeds, planting them in peat pots. When I plant them in my garden should I remove the pot? A: Theoretically, the walls of the peat pot will decompose in the soil and the...

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Hibiscus Plants – Pruning

Q: I have several large hibiscus plants that I keep in my sunroom during the winter. They lose most of their leaves during this time. Can I cut them back before I put them outside this spring? A: You can...

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Shrub Fertilization

Q: I have a lot of shrubs on my property, mostly holly, nandina and conifers. Most are over five years old and are fertilized each year. Would skipping a year be a mistake? A: If established shrubs are mulched, they...

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Water Oak Trees – Branches and Leaves Falling

Q: I have several old water oak trees. Big chunks of branches and green leaves are falling. A: Big oaks commonly lose “tufts” of green branches in early summer after rainstorms. Trees put on a lot of lush growth in...

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Water Wells – Impact on Neighboring Water Supplies

Q: I have noticed in my neighborhood that folks are drilling water wells to irrigate their yards thereby skirting state-mandated watering bans. Will this have a negative impact on the ground water supply that we all share? A: According to...

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Seed Exchange In Atlanta

Q: Do you have a seed exchange to recommend for annuals and perennials (not including vegetables) that will do well here in metro Atlanta? A: I recently talked to a lady in Armuchee who has sold flower seed through the...

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Making Soil Retain Water

Q: The soil in the huge pots on my patio has dried out completely. The soil doesn’t seem to retain water. What can I do? A: Empty the soil from the pots into a big plastic bag. For every cubic...

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Nature Trail – Proper Mulching

Q: I’m planning a 1000 foot long nature trail for my Eagle Scout project. You say on your website I need twenty cubic feet of mulch for every ten feet of a six foot wide trail. How deep will that...

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Squash Protection

Q: My squash needs your help! Where can I buy sabadilla dust for squash bugs and borers? A: Sabadilla dust is derived from the seeds of Schoenocaulon officinale, a South American lily. It was once sold as a botanical insecticide...

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Soil Contamination from Mosquito Spray

Q: Over the years we have had a lawn and pest control service and used a mosquito spray around the house. Have the plants or soil been permanently contaminated? A: I don’t believe there is any contamination. Most modern pesticides...

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Oak Sap – Causes

Q: For the past two years, the water oak over our deck has been raining sap in the spring. It creates a horrible sticky mess that turns black and dirty. What causes this? A: I think you have lecanium scale...

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Selling Laceleaf Japanese Maples

Q: I want to sell two beautiful, well-established laceleaf Japanese maples. We are moving but cannot take them with us. Do you know of any place to contact A: According to Japanese maple expert Norm Mittleider, there is a very...

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St Augustine Lawns – Waiting to Mow

Q: I have a St Augustine grass lawn. There are tall spikes with seeds on them appearing now. Should I mow it after the seeds fall off to help thicken my lawn? A: St Augustine grass produces very few viable...

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Earwigs – Getting Rid of Them

Q: How can I rid my yard of earwigs? They are at my house by the thousands. A: Earwigs mostly feed on plant debris but if numbers build large enough they will consume living plants. The damage isn’t considered major,...

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River Burch Trees – Roots Are Appearing

Q: Our river birch trees have roots coming up all over our yard. They are ruining the grass. I’d like to replace them but what would be a good tree to plant? A: Roots appearing on the surface indicate hard...

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May Night Salvia – Not Blooming

Q: I planted three May Night salvia a few weeks ago. They looked great for a while but now they’re not blooming at all. A: ‘May Night’ is a great reblooming salvia but faded bloom spikes must be removed regularly....

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Zoysia Sod – When to Fertilize

Q: How soon after planting zoysia sod should it be fertilized? A: Feed new zoysia sod once it starts growing vigorously, typically after you’ve had to mow it once. I recommend two half-strength applications a month apart. Do not apply...

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