Harman US

Planting Calendar for ZIP 48224

Based on your local frost dates - last spring frost around Apr 29, first fall frost around Oct 22 - here is when to plant 79 common crops near ZIP 48224.

Last spring frost
Apr 29
First fall frost
Oct 22
Hardiness zone
6b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 18 May 6 (Transplant out) -
Peppers Mar 4 May 13 (Transplant out) -
Cucumbers Apr 8 May 6 (Transplant out) Aug 14
Zucchini Apr 8 May 6 (Transplant out) Aug 19
Summer Squash Apr 8 May 6 (Transplant out) Aug 17
Winter Squash Apr 8 May 6 (Transplant out) -
Pumpkins Apr 8 May 6 (Transplant out) -
Green Beans - Apr 29 (Direct sow) Aug 14
Sweet Corn - May 6 (Direct sow) -
Melons Apr 8 May 13 (Transplant out) -
Watermelon Apr 8 May 13 (Transplant out) -
Okra - May 13 (Direct sow) -
Eggplant Mar 4 May 13 (Transplant out) -
Lettuce Apr 1 Apr 1 (Transplant out) Aug 19
Spinach - Mar 18 (Direct sow) Aug 24
Kale Mar 18 Apr 8 (Transplant out) Aug 14
Peas - Mar 18 (Direct sow) Aug 9
Carrots - Apr 8 (Direct sow) Jul 30
Beets - Apr 1 (Direct sow) Aug 14
Radishes - Apr 1 (Direct sow) Sep 10
Broccoli Mar 18 Apr 15 (Transplant out) Aug 4
Cauliflower Mar 18 Apr 15 (Transplant out) Jul 30
Cabbage Mar 18 Apr 8 (Transplant out) Jul 30
Onions Feb 18 Apr 1 (Transplant out) -
Potatoes - Apr 15 (Direct sow) -
Swiss Chard Apr 1 Apr 15 (Transplant out) Aug 14
Sweet Potatoes - May 20 (Direct sow) -
Brussels Sprouts Mar 18 Apr 15 (Transplant out) Jun 30
Celery Feb 18 May 6 (Transplant out) -
Leeks Feb 18 Apr 15 (Transplant out) Jun 10
Turnips - Apr 15 (Direct sow) Aug 19
Rutabaga - Apr 29 (Direct sow) Jul 5
Parsnips - Apr 15 (Direct sow) Jun 10
Kohlrabi Apr 1 Apr 15 (Transplant out) Aug 14
Collard Greens Mar 18 Apr 15 (Transplant out) Aug 4
Mustard Greens - Apr 15 (Direct sow) Aug 24
Arugula - Apr 15 (Direct sow) Aug 29
Bok Choy Apr 1 Apr 15 (Transplant out) Aug 19
Green Onions - Apr 15 (Direct sow) Aug 9
Tomatillos Mar 18 May 6 (Transplant out) -
Fennel Apr 1 Apr 15 (Transplant out) Jul 20
Popcorn Apr 29 May 13 (Transplant out) -
Black-Eyed Peas Apr 29 May 13 (Transplant out) Jul 20
Lima Beans Apr 29 May 13 (Transplant out) -
Edamame Apr 29 May 13 (Transplant out) -
Peanuts Apr 29 May 13 (Transplant out) -
Globe Artichoke Mar 4 Apr 15 (Transplant out) Jul 10
Horseradish Apr 29 Apr 15 (Transplant out) -
Ground Cherries Mar 18 May 13 (Transplant out) -
Radicchio Mar 25 Apr 15 (Transplant out) Jul 30
Endive Mar 25 Apr 15 (Transplant out) Jul 10
Watercress Apr 8 Apr 15 (Transplant out) Aug 9
Sorrel Mar 18 Apr 8 (Transplant out) Aug 9
Sunchokes Apr 29 Apr 15 (Transplant out) -
Malabar Spinach Mar 18 May 13 (Transplant out) -
Amaranth Greens Apr 8 May 13 (Transplant out) Aug 24
Luffa Gourd Mar 18 May 13 (Transplant out) -
New Zealand Spinach Apr 1 May 13 (Transplant out) -
Fava Beans Apr 29 Apr 1 (Transplant out) Jul 15
Chayote Apr 1 May 13 (Transplant out) -
Corn Salad Apr 29 Apr 1 (Transplant out) Aug 9
Bitter Melon Apr 1 May 13 (Transplant out) -
Cardoon Mar 18 Apr 29 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 18 May 6 (Transplant out) -
Cilantro - Apr 15 (Direct sow) Aug 19
Parsley Mar 4 May 13 (Transplant out) Jul 25
Dill - May 6 (Direct sow) Aug 9
Lemon Balm Mar 18 Apr 29 (Transplant out) -
Borage Apr 29 Apr 29 (Transplant out) Aug 14
Chervil Apr 29 Apr 8 (Transplant out) Aug 14
Lemongrass Mar 4 May 13 (Transplant out) -
Summer Savory Mar 18 Apr 29 (Transplant out) -
Marjoram Mar 18 May 6 (Transplant out) -
Lovage Mar 18 Apr 29 (Transplant out) Jul 10
Anise Hyssop Mar 4 Apr 29 (Transplant out) -
Shiso Mar 18 May 6 (Transplant out) -
Stevia Mar 4 May 13 (Transplant out) -
Chamomile Mar 18 Apr 15 (Transplant out) Aug 4
Tarragon Apr 29 Apr 29 (Transplant out) -
How to read this calendar

Start seeds indoors is when to sow in trays inside so seedlings are ready to transplant. Plant outside is when to transplant seedlings or direct-sow seed, based on frost tolerance. Fall planting by is the latest date to start a fall crop and still harvest before the first fall frost. Tender crops wait until after the last spring frost; hardy crops can go out earlier.

Computed from NOAA 1991–2020 Climate Normals at Grosse Pointe Farms, Mi, 2.7 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 48224 Local weather →