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.