Since squash take a long time to mature, try starting your plants indoors 3-4 weeks before planting them outside. Plant your seeds 1 inch deep in soil trays or pots and when you plant them in the garden you can use rows 4-6 feet apart instead of hills. If you choose to directly sow your seeds in the garden, start by building up a hill of loose soil 12 inches across and plant 6-8 seeds at the top. As your plants grow, thin them to 3-4 plants per hill. These squash should be mature in about 110 days.