Zone 4 Vegetable Planting and Harvest Chart. Zone 4 generally has a short growing season (about 90–120 days, with last frost in mid-May and first frost in mid-September to early October).
🌱 Vegetable Planting and Harvest Chart for Zone 4
Vegetable | Start Indoors | Direct Sow Outdoors | Transplant Outdoors | Harvest Time |
---|---|---|---|---|
Arugula | – | Late April to July | – | May to September |
Beets | – | May to July | – | June to October |
Broccoli | March | – | Mid-May to June | July to September |
Brussels Sprouts | March | – | Mid-May | Sept to Oct (after frost is best) |
Cabbage | March | – | Mid-May | July to Sept |
Carrots | – | Late April to July | – | July to October |
Cauliflower | March | – | Mid-May | July to September |
Corn | – | Late May to early June | – | August to September |
Cucumbers | April (optional) | Late May to June | Early June (if started indoors) | August to September |
Kale | March | May to June | Late May | June to October |
Lettuce | – | Late April to July | – | May to September |
Onions (sets) | – | April to May | – | July to August |
Peas | – | Late April to early May | – | June to July |
Peppers | March | – | Early June | August to September |
Potatoes | – | May | – | August to October |
Pumpkins | April (optional) | Late May to June | Early June (if started indoors) | Sept to Oct |
Radishes | – | Late April to August | – | May to September |
Spinach | – | Late April to June | – | May to July |
Squash (summer) | April (optional) | Late May to June | Early June | July to September |
Squash (winter) | April (optional) | Late May to June | Early June | Sept to Oct |
Tomatoes | March | – | Early June | August to September |
Turnips | – | May to July | – | July to October |
Zucchini | April (optional) | Late May to June | Early June | July to September |
Notes for Zone 4 Gardening:
Frost Dates: Last frost ~May 15; First frost ~Sept 15.
Row Covers & Cold Frames can help extend the season.
Succession Planting: Great for crops like lettuce, radishes, spinach, and beans.
Soil Warming: Use black plastic or fabric to warm the soil earlier for heat-loving plants.