How to edge flowerbeds like a pro! It really works. via Funky Junk Interiors
Use newspaper to prepare a planting spot. In the fall, mow a patch of lawn to make room for a dedicated bed. Cover it with four layers of newspaper, then a four-inch layer of shredded leaves or bark mulch. Hose it down. Come spring, the compost blanket will have smothered the grass roots, and the bed will be primed for planting.
"Baking soda neutralizes the ph in the soil and nothing will grow there. I use baking soda in a 6" wide area around all of the edges of my flower beds to keep the grass and weeds from growing into my beds. Just sprinkle it onto the soil so that it covers it lightly. I usually have to do this twice a year - spring and fall." - I'll have to try this - thanks!