5 PACK BUNDLE. The Livingston Seed Company Waltham Butternut Organic Non-GMO Squash Seeds are a high-quality option for outdoor planting in a humid continental climate. These seeds, with a common name of Waltham Butternut, have a clumping growth habit and produce tan yellow-orange squash. They thrive in loam soil with a neutral soil pH, requiring full sun sunlight for optimal growth. With a life cycle of annual, these seeds are ideal for summer and fall seasons, offering easy cultivation difficulty and a heavy yielding crop for home gardening enthusiasts.