Before planting Lovage, it's essential to test the soil pH levels to ensure they fall within the desirable range of 6 to 7. You can use a soil pH testing kit, which is available at most garden centers, to determine the acidity or alkalinity of your soil. If the pH is outside this range, you might need to amend the soil. For instance, adding lime can increase the pH, making the soil less acidic, while sulfur can lower the pH, making it more acidic.