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What to Plant in July — USDA Zone 3a

Here's everything you can start, transplant, sow, and harvest in July in USDA Zone 3a. This zone has an average last spring frost around May 15 and first fall frost around September 15, with a growing season of approximately 123 days.

There are 87 planting activities for July in Zone 3a.

Zone 3a Short season
123 days
Last Spring Frost May 15
123 growing days
First Fall Frost September 15

Where Is Zone 3a?

Harvest in July

Plant Type Date Range Days to Maturity
Ageratum Flower 60–75 days
Arugula Vegetable 30–50 days
Bachelor's Button Flower 60–90 days
Beets Vegetable 50–70 days
Bleeding Hearts Flower 60–90 days
Bok Choy Vegetable 40–60 days
Borage Herb 50–60 days
Broccoli Vegetable 60–90 days
Broccoli Rabe Vegetable 40–60 days
Cabbage Vegetable 60–100 days
Calendula Flower 50–70 days
Carrots Vegetable 60–80 days
Catnip Herb 60–80 days
Cauliflower Vegetable 55–100 days
Celtuce Vegetable 60–90 days
Chamomile Herb 60–90 days
Chard Vegetable 50–60 days
Chervil Herb 40–60 days
Chicory Vegetable 60–85 days
Chinese Cabbage Vegetable 50–70 days
Chives Herb 60–90 days
Cilantro Herb 40–60 days
Collard Greens Vegetable 55–75 days
Columbine Flower 70–100 days
Comfrey Herb 60–90 days
Corn Vegetable 60–100 days
Cosmos Flower 60–90 days
Crookneck Squash Vegetable 45–60 days
Cucumber Vegetable 50–70 days
Daffodils Flower 20–40 days
Daikon Vegetable 50–70 days
Dianthus Flower 60–80 days
Dill Herb 40–60 days
Endive Vegetable 45–65 days
Escarole Vegetable 50–70 days
Fava Beans Vegetable 75–100 days
Foxglove Flower 80–120 days
Garlic Chives Herb 60–90 days
Green Beans Vegetable 50–65 days
Hyacinths Flower 14–28 days
Hyssop Herb 70–90 days
Irises Flower 60–100 days
Kai Lan Vegetable 45–60 days
Kale Vegetable 50–70 days
Kohlrabi Vegetable 45–65 days
Komatsuna Vegetable 35–50 days
Larkspur Flower 60–90 days
Lemon Balm Herb 60–70 days
Lettuce Vegetable 30–60 days
Lima Beans Vegetable 60–90 days
Lobelia Flower 70–80 days
Lovage Herb 70–90 days
Lupine Flower 75–100 days
Mache Vegetable 40–60 days
Marigolds Flower 50–70 days
Mint Herb 60–90 days
Mizuna Vegetable 30–45 days
Mustard Greens Vegetable 30–50 days
Napa Cabbage Vegetable 55–75 days
Nasturtium Flower 55–65 days
Pac Choi Vegetable 40–55 days
Pansy Flower 70–90 days
Parsley Herb 60–80 days
Patty Pan Squash Vegetable 45–60 days
Peas Vegetable 55–70 days
Pole Beans Vegetable 55–70 days
Portulaca Flower 50–70 days
Purslane Vegetable 40–60 days
Romanesco Vegetable 75–100 days
Rutabaga Vegetable 80–100 days
Savoy Cabbage Vegetable 70–110 days
Scallions Vegetable 50–70 days
Shiso Vegetable 50–70 days
Snap Peas Vegetable 55–70 days
Snapdragon Flower 70–100 days
Snow Peas Vegetable 50–65 days
Sorrel Herb 40–60 days
Spinach Vegetable 35–50 days
Squash (Summer) Vegetable 45–65 days
Sweet Alyssum Flower 45–60 days
Sweet Corn Vegetable 60–90 days
Tatsoi Vegetable 35–50 days
Tulips Flower 15–30 days
Turnip Vegetable 40–60 days
Watercress Vegetable 40–60 days
Wax Beans Vegetable 50–65 days
Zucchini Vegetable 45–60 days

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Planting dates are estimates based on average frost dates — local conditions may vary. Last updated: July 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.