Plants need loose, fertile, well drained soil with plenty of organic matter and nitrogen and a pH 5.8-6.8. Fertilize seedlings with fish emulsion if leaves yellow.
Plant spacing: for bush varieties 18-24”, for vining 24-36”
Row spacing: for bush, semi-bush and short vine types is 6’, for vigorous vining types use 9’. Plants can also be planted in hills of 3-5 plants in rows 3-5’ apart (bush types provide less weed suppression so are typically planted closer than vining types) for easier tractor cultivation.
When to Sow
Days to maturity are from direct seeding, subtract 2 weeks if
transplanting. Winter squash has a long season, requiring 90-120 frost
free days to reach maturity, so it is usually transplanted in northern
climates. It can also be direct seeded once danger of frost has passed
and soil temperatures reach 70°F. Start transplants indoors 3-4 weeks
before last risk of frost. Optimal soil temperature for germination is