Harman US

Planting Calendar for ZIP 15063

Based on your local frost dates - last spring frost around Apr 13, first fall frost around Nov 5 - here is when to plant 79 common crops near ZIP 15063.

Last spring frost
Apr 13
First fall frost
Nov 5
Hardiness zone
6b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 2 Apr 20 (Transplant out) -
Peppers Feb 16 Apr 27 (Transplant out) -
Cucumbers Mar 23 Apr 20 (Transplant out) Aug 28
Zucchini Mar 23 Apr 20 (Transplant out) Sep 2
Summer Squash Mar 23 Apr 20 (Transplant out) Aug 31
Winter Squash Mar 23 Apr 20 (Transplant out) -
Pumpkins Mar 23 Apr 20 (Transplant out) -
Green Beans - Apr 13 (Direct sow) Aug 28
Sweet Corn - Apr 20 (Direct sow) -
Melons Mar 23 Apr 27 (Transplant out) -
Watermelon Mar 23 Apr 27 (Transplant out) -
Okra - Apr 27 (Direct sow) -
Eggplant Feb 16 Apr 27 (Transplant out) -
Lettuce Mar 16 Mar 16 (Transplant out) Sep 2
Spinach - Mar 2 (Direct sow) Sep 7
Kale Mar 2 Mar 23 (Transplant out) Aug 28
Peas - Mar 2 (Direct sow) Aug 23
Carrots - Mar 23 (Direct sow) Aug 13
Beets - Mar 16 (Direct sow) Aug 28
Radishes - Mar 16 (Direct sow) Sep 24
Broccoli Mar 2 Mar 30 (Transplant out) Aug 18
Cauliflower Mar 2 Mar 30 (Transplant out) Aug 13
Cabbage Mar 2 Mar 23 (Transplant out) Aug 13
Onions Feb 2 Mar 16 (Transplant out) -
Potatoes - Mar 30 (Direct sow) -
Swiss Chard Mar 16 Mar 30 (Transplant out) Aug 28
Sweet Potatoes - May 4 (Direct sow) -
Brussels Sprouts Mar 2 Mar 30 (Transplant out) Jul 14
Celery Feb 2 Apr 20 (Transplant out) -
Leeks Feb 2 Mar 30 (Transplant out) Jun 24
Turnips - Mar 30 (Direct sow) Sep 2
Rutabaga - Apr 13 (Direct sow) Jul 19
Parsnips - Mar 30 (Direct sow) Jun 24
Kohlrabi Mar 16 Mar 30 (Transplant out) Aug 28
Collard Greens Mar 2 Mar 30 (Transplant out) Aug 18
Mustard Greens - Mar 30 (Direct sow) Sep 7
Arugula - Mar 30 (Direct sow) Sep 12
Bok Choy Mar 16 Mar 30 (Transplant out) Sep 2
Green Onions - Mar 30 (Direct sow) Aug 23
Tomatillos Mar 2 Apr 20 (Transplant out) -
Fennel Mar 16 Mar 30 (Transplant out) Aug 3
Popcorn Apr 13 Apr 27 (Transplant out) -
Black-Eyed Peas Apr 13 Apr 27 (Transplant out) Aug 3
Lima Beans Apr 13 Apr 27 (Transplant out) -
Edamame Apr 13 Apr 27 (Transplant out) -
Peanuts Apr 13 Apr 27 (Transplant out) -
Globe Artichoke Feb 16 Mar 30 (Transplant out) Jul 24
Horseradish Apr 13 Mar 30 (Transplant out) -
Ground Cherries Mar 2 Apr 27 (Transplant out) -
Radicchio Mar 9 Mar 30 (Transplant out) Aug 13
Endive Mar 9 Mar 30 (Transplant out) Jul 24
Watercress Mar 23 Mar 30 (Transplant out) Aug 23
Sorrel Mar 2 Mar 23 (Transplant out) Aug 23
Sunchokes Apr 13 Mar 30 (Transplant out) -
Malabar Spinach Mar 2 Apr 27 (Transplant out) -
Amaranth Greens Mar 23 Apr 27 (Transplant out) Sep 7
Luffa Gourd Mar 2 Apr 27 (Transplant out) -
New Zealand Spinach Mar 16 Apr 27 (Transplant out) -
Fava Beans Apr 13 Mar 16 (Transplant out) Jul 29
Chayote Mar 16 Apr 27 (Transplant out) -
Corn Salad Apr 13 Mar 16 (Transplant out) Aug 23
Bitter Melon Mar 16 Apr 27 (Transplant out) -
Cardoon Mar 2 Apr 13 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 2 Apr 20 (Transplant out) -
Cilantro - Mar 30 (Direct sow) Sep 2
Parsley Feb 16 Apr 27 (Transplant out) Aug 8
Dill - Apr 20 (Direct sow) Aug 23
Lemon Balm Mar 2 Apr 13 (Transplant out) -
Borage Apr 13 Apr 13 (Transplant out) Aug 28
Chervil Apr 13 Mar 23 (Transplant out) Aug 28
Lemongrass Feb 16 Apr 27 (Transplant out) -
Summer Savory Mar 2 Apr 13 (Transplant out) -
Marjoram Mar 2 Apr 20 (Transplant out) -
Lovage Mar 2 Apr 13 (Transplant out) Jul 24
Anise Hyssop Feb 16 Apr 13 (Transplant out) -
Shiso Mar 2 Apr 20 (Transplant out) -
Stevia Feb 16 Apr 27 (Transplant out) -
Chamomile Mar 2 Mar 30 (Transplant out) Aug 18
Tarragon Apr 13 Apr 13 (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 Charleroi Lock 4, Pa, 3.3 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 15063 Local weather →