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5,000 square feet
Each 50 lb per 1,000 square feet application should raise your pH by about one point. (50 lbs of calcitic lime will cover 5,000 square feet.)
2 to 3 years
How long will it take for lime to react with the soil and how long will it last? Lime will react completely with the soil in two to three years after it has been applied; although, benefits from lime may occur within the first few months after application.
When pH strays too far in either direction, even plentiful nutrients are restricted. Lime restores balance in overly acidic soil to bring pH back to optimal growing levels. Poor grass growth and lawn moss are signs that lawns may need lime.
To save you time (and likely money), it's okay to apply lime and fertilizer at the same time. The fertilizer will provide an immediate supply of nutrients to the soil, while the lime will release slowly over time and maintain the appropriate pH balance.
Spring is a great time to test your soil, and you can apply lime between fall and early spring. Many gardeners prefer to lime just before the first frost in fall because the soil has all winter to absorb the lime. Don't spread lime on a dry, wilted lawn or a soggy, wet lawn. Don't lime during frosty weather.