The Grass Doctor

Will a mixture of cornstarch, water and food coloring harm or damage grass?

Cornstarch, water and food coloring are the ingredients for washable sidewalk paint. I've been wanting to make a big painting on the sidewalk of my front door with this mixture. It'll eventually washes off when it'll rain, but then it'll enter the lawn beside it and I don't want to kill or damage the grass. Will the mixture harm the grass?

Public Comments

1. No,cornstarch shouldn't harm grass at all.Food coloring might stain it but it will grow out rather quickly.
2. No, it shouldn't cause a problem
3. I would be more leary of the food coloring staining your concrete.
4. No, just use plenty of water to dilute when you go to femove it.