After you've made your selection, it's time to plant. Before planting, sample the soil. An ideal pH ranges from 6.0 to 7.0 You may need to amend your soil to achieve this level with high calcium and low magnesium limestone, as your soil test warrants.

Once you have the proper pH, you should apply the major soil nutrients (NPK) at the proper levels. Don't forget the minor nutrients. Minor nutrients like calcium, sulfur, magnesium, and boron are important for influencing color, handle strength, and other qualities of a marketable pumpkin.