Can a rotary mower be used on a Bermuda lawn?
— Murray Sarkin, e-mail A: It all depends on how low you want to cut the grass. The recommended height for sodded Bermuda grass is 1.5 inches. A rotary mower with a sharp blade can achieve that. If you want it lower, you need a reel mower. In either case, mow when you’ll remove less than one-third of the green leaf, typically every four days. Q: What is the purpose of liming my lawn and when do I do it? — Gordon Fuller, e-mail A: The purpose of liming is to help your grass absorb fertilizer efficiently. Most Georgia soils are acidic. In an acidic environment, plant roots don’t take up nutrients as readily as they should. By adding lime, you neutralize acidity and make the grass healthier. You find out how much lime to add by having a soil test done. Once you get the results, lime can be added at any time. Details are online at www.georgiasoiltest.com. Q: Can you tell me how deep a raised bed should be for tomatoes? — Hal Herndon, Murrayville A: I think 10 inches of soft soil would make