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☀️ Summer 2026 — Zone 3b Planting Guide

Here's everything you can plant during Summer 2026 in USDA Zone 3b. With a last frost around May 10 and first frost around September 22, you have a 135-day growing season to work with.

There are 171 planting activities across June, July, August.

Transplant Outdoors This Summer

PlantTypeWhenDays to Maturity
Acorn Squash Vegetable 80–100
Alpine Strawberries Fruit 90–180
Amaranth Vegetable 90–120
Aronia Fruit 730–1095
Asparagus Vegetable 730–1095
Blueberries Fruit 730–1095
Butternut Squash Vegetable 85–110
Cranberries Fruit 730–1095
Crookneck Squash Vegetable 45–60
Cucumber Vegetable 50–70
Currants Fruit 730–1095
Delicata Squash Vegetable 80–100
Elderberries Fruit 730–1095
Goji Berries Fruit 730–1095
Gooseberries Fruit 730–1095
Hardy Kiwi Fruit 1095–1825
Haskaps Fruit 730–1095
Horseradish Vegetable 120–180
Hubbard Squash Vegetable 100–120
Jostaberry Fruit 730–1095
Kabocha Vegetable 85–100
Lingonberries Fruit 730–1095
Patty Pan Squash Vegetable 45–60
Peppers Vegetable 60–90
Pole Beans Vegetable 55–70
Potatoes Vegetable 70–120
Pumpkin Vegetable 85–120
Raspberries Fruit 365–730
Rhubarb Vegetable 365–730
Scarlet Runner Beans Vegetable 60–80
Serviceberries Fruit 730–1095
Shiso Vegetable 50–70
Snap Peas Vegetable 55–70
Spaghetti Squash Vegetable 85–100
Squash (Summer) Vegetable 45–65
Squash (Winter) Vegetable 80–120
Strawberries Fruit 90–365
Sunchoke Vegetable 110–150
Sunflower Vegetable 70–100
Tomatoes Vegetable 60–85
Zucchini Vegetable 45–60

Direct Sow This Summer

PlantTypeWhenDays to Maturity
Acorn Squash Vegetable 80–100
Amaranth Vegetable 90–120
Black Beans Vegetable 90–120
Butternut Squash Vegetable 85–110
Corn Vegetable 60–100
Crookneck Squash Vegetable 45–60
Cucumber Vegetable 50–70
Delicata Squash Vegetable 80–100
Edamame Vegetable 75–100
Green Beans Vegetable 50–65
Hubbard Squash Vegetable 100–120
Kabocha Vegetable 85–100
Kidney Beans Vegetable 85–110
Lima Beans Vegetable 60–90
Patty Pan Squash Vegetable 45–60
Peppers Vegetable 60–90
Pole Beans Vegetable 55–70
Potatoes Vegetable 70–120
Pumpkin Vegetable 85–120
Scarlet Runner Beans Vegetable 60–80
Shiso Vegetable 50–70
Snap Peas Vegetable 55–70
Soybeans Vegetable 80–120
Spaghetti Squash Vegetable 85–100
Squash (Summer) Vegetable 45–65
Squash (Winter) Vegetable 80–120
Sunflower Vegetable 70–100
Sweet Corn Vegetable 60–90
Tomatoes Vegetable 60–85
Wax Beans Vegetable 50–65
Zucchini Vegetable 45–60

Harvest This Summer

PlantTypeWhenDays to Maturity
Arugula Vegetable 30–50
Beets Vegetable 50–70
Bok Choy Vegetable 40–60
Borage Herb 50–60
Broccoli Rabe Vegetable 40–60
Chervil Herb 40–60
Cilantro Herb 40–60
Cress Vegetable 14–21
Daikon Vegetable 50–70
Dill Herb 40–60
Endive Vegetable 45–65
Kai Lan Vegetable 45–60
Kohlrabi Vegetable 45–65
Komatsuna Vegetable 35–50
Lettuce Vegetable 30–60
Mache Vegetable 40–60
Microgreens Vegetable 7–21
Mizuna Vegetable 30–45
Mustard Greens Vegetable 30–50
Pac Choi Vegetable 40–55
Purslane Vegetable 40–60
Radish Vegetable 22–35
Sorrel Herb 40–60
Spinach Vegetable 35–50
Tatsoi Vegetable 35–50
Turnip Vegetable 40–60
Watercress Vegetable 40–60
Broccoli Vegetable 60–90
Cabbage Vegetable 60–100
Carrots Vegetable 60–80
Catnip Herb 60–80
Cauliflower Vegetable 55–100
Celtuce Vegetable 60–90
Chamomile Herb 60–90
Chard Vegetable 50–60
Chicory Vegetable 60–85
Chinese Cabbage Vegetable 50–70
Chives Herb 60–90
Collard Greens Vegetable 55–75
Comfrey Herb 60–90
Corn Vegetable 60–100
Crookneck Squash Vegetable 45–60
Cucumber Vegetable 50–70
Escarole Vegetable 50–70
Fava Beans Vegetable 75–100
Garlic Chives Herb 60–90
Green Beans Vegetable 50–65
Hyssop Herb 70–90
Kale Vegetable 50–70
Lemon Balm Herb 60–70
Lima Beans Vegetable 60–90
Lovage Herb 70–90
Mint Herb 60–90
Napa Cabbage Vegetable 55–75
Parsley Herb 60–80
Patty Pan Squash Vegetable 45–60
Peas Vegetable 55–70
Pole Beans Vegetable 55–70
Romanesco Vegetable 75–100
Rutabaga Vegetable 80–100
Savoy Cabbage Vegetable 70–110
Scallions Vegetable 50–70
Shiso Vegetable 50–70
Snap Peas Vegetable 55–70
Snow Peas Vegetable 50–65
Squash (Summer) Vegetable 45–65
Sweet Corn Vegetable 60–90
Wax Beans Vegetable 50–65
Zucchini Vegetable 45–60
Acorn Squash Vegetable 80–100
Amaranth Vegetable 90–120
Bee Balm Herb 90–120
Belgian Endive Vegetable 110–150
Black Beans Vegetable 90–120
Brussels Sprouts Vegetable 90–130
Butternut Squash Vegetable 85–110
Celeriac Vegetable 100–120
Celery Vegetable 80–120
Chickpeas Vegetable 80–110
Delicata Squash Vegetable 80–100
Edamame Vegetable 75–100
Horehound Herb 75–90
Kabocha Vegetable 85–100
Kidney Beans Vegetable 85–110
Leeks Vegetable 90–150
Lentils Vegetable 80–110
Onion Vegetable 90–120
Parsnip Vegetable 100–130
Peppers Vegetable 60–90
Potatoes Vegetable 70–120
Pumpkin Vegetable 85–120
Salsify Vegetable 100–130
Scarlet Runner Beans Vegetable 60–80
Soybeans Vegetable 80–120
Spaghetti Squash Vegetable 85–100
Squash (Winter) Vegetable 80–120
Sunflower Vegetable 70–100
Tomatoes Vegetable 60–85
Yarrow Herb 90–120
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