Squash are annuals in Minnesota.
Sunlight: Full sun (6+ hours daily).
Soil: Well-drained, rich in organic matter.
Transplanting: Plant gently into soil mounds when soil reaches 65°; avoid disturbing roots.
Watering: Water deeply and consistently.
Fertilization: Use balanced fertilizer (10-10-10) at planting, increase potassium during fruiting.
Other tips:
Provide plenty of space for vines.
Mulch to retain moisture.
Allow fruit to fully mature on the vine before harvesting. Cure in a warm, dry place for longer storage life.