Answer: Usually, the secret to a good lawn is in the soil preparation, but can also depend on the timing of the seeding or sod laying and definitely on the maintenance afterwards. It can also have to do with the grass variety planted. For a systematic approach to analyzing your site and making the best possible decisions, you might want to take a look at a good book on lawns. One I particularly recommend is "Lawn Care for Dummies" by Lance Walheim, Dummy Press, ISBN 0-7645-5077-2. In addition to the basics, it also includes detailed troubleshooting advice.
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