The perfect butternut for gardeners with limited space and a shorter growing season! Burpees Butterbush grows on compact 3\’ vines, matures in just 75 days, and yields an abundance of sweet, scrumptious 2-4 pound winter squash. 25 seeds minimum Germination: 7-10 days Maturity: 75 days Direct sow 1 deep in full sun well after the danger of frost has passed. Sow 3-4 seeds on hills 3-4 apart or plant in rows 4-6\’ apart, spacing plants 24-36\” apart.