Early Spring is an ideal time to lime your lawn, and is a great way to further improve your soil after performing a core aeration on your lawn. If your lawn is wilted or dormant, never apply lime; instead, wait for a time when the lawn is actively growing like early Spring or Fall.
Regular liming can do a wealth of good for your grass. With a number of benefits, calcitic lime is a welcome addition for every home lawn, especially those that need a little TLC.
Balance Soil pH
When soil is acidic, it becomes extremely hard to grow healthy grass. As the soil acidity gets worse, plant essential nutrients become unavailable for the plant to uptake, such as nitrogen, phosphorus and potassium - the three macro nutrients required for healthy growth. Neutralizing soil pH effectively frees up these essential nutrients, giving your lawn a better chance to thrive.
Unlike grass, moss thrives in acidic soil. Moss infestations are common in shady, moist areas well as many coastal regions with acidic soil pH, where grass finds it very difficult to compete.
Using calcitic lime will help neutralize your soil pH, giving turf a better chance at outcompeting moss, and reducing infestation.
That said, lime cannot kill moss. Although annual lime treatments are very beneficial and a good cultural practice, existing moss infestations may require moss control treatments.
Like moss, weeds can thrive in acidic soil. Getting the soil back to optimal conditions, you're giving your grass a better chance to grow and outcompete weeds.
Preserve and Protect Your Lawn
While the major benefit of using lime in your lawn is correcting soil acidity, calcitic lime also adds an important nutrient to your lawn; that's right, calcium.
Calcium helps maintain your lawn's colour and strength, and also helps protect the lawn from stress, including heat, drought, or heavy foot traffic.
Improve Fertilizer Performance
Liming can help improve the efficiency of your fertilizing efforts by nourishing the good bacteria found in soil. This in turn will make your fertilizer perform better, since the lime optimises soil pH allowing plant essential nutrients to become available.
Correcting undesireable soil pH conditions prior to and during fertilizer applications is recommended practice.