Hemp does not grow well in moist soils or in soils with a high clay content. Soil temperatures of 46° to 50° F are preferred, and high soil temperatures should be avoided, as small hemp seed can sprout and dry out or scald before emerging. In general, hemp should be planted after the danger of severe frost. Soil moisture is necessary for seed germination, planting in well-prepared soil with the right moisture.
Rain or watering is recommended in an amount of approximately 1 inch per week for optimal performance. International Hemp is a supplier of industrial hemp varieties certified by the Association of Official Seed Certification Agencies (AOSCA), a trade organization that preserves genetic purity and ensures the varietal identity of agricultural seed seeds.