Cement is a fine, soft, powdery-type substance. It is made from a mixture of elements that are found in natural materials such as limestone, clay, sand and/or shale. When cement is mixed with water, it can bind sand and gravel into a hard, solid mass called concrete.
Overview. While onions may be welcome in your vegetable garden, they are considered weeds in your lawn. Onion grass, a type of wild onion, often flourishes in yards, particularly in the southeastern region of the U.S. Like most common lawn weeds, onion grass can be eliminated with commercial herbicides and weed killers.tep 2. Cut onion grass very short to prevent flowering. Onion grass reproduces by flowering and seeding. By cutting onion grass to the same height as your lawn grass, you can stop it from spreading.
Onions can be used to grow new onions. Unlike many other vegetables, onions can be used to regrow new onions by planting either a whole onion bulb or part of the onion that contains the root mass on the bottom.Once planted and hydrated, the roots on the bottom of the onion will begin to grow, and green onions will form out of the top of the vegetable.Onions can be used to grow new onions either using water â which is called hydroponic growing â or traditionally, using soil.nce planted and hydrated, the roots on the bottom of the onion will begin to grow, and green onions will form out of the top of the vegetable. Onions can be used to grow new onions either using water â which is called hydroponic growing â or traditionally, using soil.