The short answer is as soon as you can work it into the soil.
Timing an application of lime is not as important as testing to see if it is necessary in the first place. Lime is applied to soils to raise the pH. If lime is applied and soil pH is already high, then it may take a year or more to get the pH levels back to where they should be for the crop to be grown.
We can help you with testing your soil. It takes about 2 weeks to get results and the university will give you recommendations based on what you wish to grow!
Taking Soil Test Sample:
Liming Acid Soils:
Feel free to contact our office if you have other questions.
Let me know if I can help you further!
Jefferson County Cooperative Extension Service
810 Barret Ave
Louisville KY 40204