Long term for soil improvement
For short term, you should add a calcium supplement from a garden supply. Sooner the better.
Growing in pots is a different animal.
Fertility - Liming & pH
Provide the ideal pH of 5.8 to 6.0 through the application of dolomitic limestone. This is a key step in a cost-effective and responsible nutrient management plan. Low pH causes greater solubility of soil aluminum (and manganese in piedmont soils), which reduces root growth and development...
tobacco.ces.ncsu.edu
For short term, you should add a calcium supplement from a garden supply. Sooner the better.
Growing in pots is a different animal.