Hi this is Peggy. Hope this helps you take care of your grass. How to Take Care of Your Lawn (with Pictures) - wikiHow
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Mar 29, 2019 - Part 2. Mowing. Cut grass high. Tall grass makes for a much healthier lawn. Remove no more than ⅓ of the grass blade. Mow when the lawn is cool and dry. Leave grassclippings on the lawn. Sharpen mower blades regularly. Cut the grass short at the end of the growing season.
Miracle grow water it with a sprayer that distributes it or get a grass fertilizer
This tutorial might help: https://m.youtube.com/watch?v=H9H9_x8EZnY
Miracle Grow works wonders