How to Keep Weeds Out of Pavers With Corn Starch

Getting rid of weeds in a smart, safe way often means manual pulling. However, as the Agriculture and Natural Resources website of the University of California points out, the use of a corn starch product may prevent some weeds from growing in the first place. Corn starch itself is not used, but a by-product of the making of corn starch, called corn gluten meal. Because it doesn’t harm desirable plants and is absolutely safe for people, animals and the environment, many gardeners are switching to this simple method of weed control.

Corn gluten meal
Garden spreader (optional)
Garden hose

Instructions

- 1
  Time the application of corn gluten meal three to five weeks before weeds are likely to germinate. In most cases, this is in early spring. If you’re unsure when to apply in your region, contact your local university extension service for full information.
- 2
  Sprinkle the corn gluten meal evenly over the soil or grass around the pavers at a rate of 20 pounds per 1000 feet. A garden spreader makes this job easier.
- 3
  Water the area of application lightly, if no rain is expected. Thereafter, for best results, do not water the area. If other plants or grass grow in the area, water just enough to keep them alive.
- 4
  Reapply the corn gluten meal at the same rate after five to six weeks, or according to the directions your local university extension service recommends.
- 5
  Reapply corn gluten meal in the fall, to keep weeds under control for the early spring.
- 6
  Apply corn gluten meal again the following year. Each year this method is used, better results should occur, until by the fourth year, what the Iowa State University Research Foundation website calls “good control” should be seen.

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