Harman US

Planting Calendar for ZIP 19606

Based on your local frost dates - last spring frost around Apr 14, first fall frost around Oct 29 - here is when to plant 79 common crops near ZIP 19606.

Last spring frost
Apr 14
First fall frost
Oct 29
Hardiness zone
7a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 3 Apr 21 (Transplant out) -
Peppers Feb 17 Apr 28 (Transplant out) -
Cucumbers Mar 24 Apr 21 (Transplant out) Aug 21
Zucchini Mar 24 Apr 21 (Transplant out) Aug 26
Summer Squash Mar 24 Apr 21 (Transplant out) Aug 24
Winter Squash Mar 24 Apr 21 (Transplant out) -
Pumpkins Mar 24 Apr 21 (Transplant out) -
Green Beans - Apr 14 (Direct sow) Aug 21
Sweet Corn - Apr 21 (Direct sow) -
Melons Mar 24 Apr 28 (Transplant out) -
Watermelon Mar 24 Apr 28 (Transplant out) -
Okra - Apr 28 (Direct sow) -
Eggplant Feb 17 Apr 28 (Transplant out) -
Lettuce Mar 17 Mar 17 (Transplant out) Aug 26
Spinach - Mar 3 (Direct sow) Aug 31
Kale Mar 3 Mar 24 (Transplant out) Aug 21
Peas - Mar 3 (Direct sow) Aug 16
Carrots - Mar 24 (Direct sow) Aug 6
Beets - Mar 17 (Direct sow) Aug 21
Radishes - Mar 17 (Direct sow) Sep 17
Broccoli Mar 3 Mar 31 (Transplant out) Aug 11
Cauliflower Mar 3 Mar 31 (Transplant out) Aug 6
Cabbage Mar 3 Mar 24 (Transplant out) Aug 6
Onions Feb 3 Mar 17 (Transplant out) -
Potatoes - Mar 31 (Direct sow) -
Swiss Chard Mar 17 Mar 31 (Transplant out) Aug 21
Sweet Potatoes - May 5 (Direct sow) -
Brussels Sprouts Mar 3 Mar 31 (Transplant out) Jul 7
Celery Feb 3 Apr 21 (Transplant out) -
Leeks Feb 3 Mar 31 (Transplant out) Jun 17
Turnips - Mar 31 (Direct sow) Aug 26
Rutabaga - Apr 14 (Direct sow) Jul 12
Parsnips - Mar 31 (Direct sow) Jun 17
Kohlrabi Mar 17 Mar 31 (Transplant out) Aug 21
Collard Greens Mar 3 Mar 31 (Transplant out) Aug 11
Mustard Greens - Mar 31 (Direct sow) Aug 31
Arugula - Mar 31 (Direct sow) Sep 5
Bok Choy Mar 17 Mar 31 (Transplant out) Aug 26
Green Onions - Mar 31 (Direct sow) Aug 16
Tomatillos Mar 3 Apr 21 (Transplant out) -
Fennel Mar 17 Mar 31 (Transplant out) Jul 27
Popcorn Apr 14 Apr 28 (Transplant out) -
Black-Eyed Peas Apr 14 Apr 28 (Transplant out) Jul 27
Lima Beans Apr 14 Apr 28 (Transplant out) -
Edamame Apr 14 Apr 28 (Transplant out) -
Peanuts Apr 14 Apr 28 (Transplant out) -
Globe Artichoke Feb 17 Mar 31 (Transplant out) Jul 17
Horseradish Apr 14 Mar 31 (Transplant out) -
Ground Cherries Mar 3 Apr 28 (Transplant out) -
Radicchio Mar 10 Mar 31 (Transplant out) Aug 6
Endive Mar 10 Mar 31 (Transplant out) Jul 17
Watercress Mar 24 Mar 31 (Transplant out) Aug 16
Sorrel Mar 3 Mar 24 (Transplant out) Aug 16
Sunchokes Apr 14 Mar 31 (Transplant out) -
Malabar Spinach Mar 3 Apr 28 (Transplant out) -
Amaranth Greens Mar 24 Apr 28 (Transplant out) Aug 31
Luffa Gourd Mar 3 Apr 28 (Transplant out) -
New Zealand Spinach Mar 17 Apr 28 (Transplant out) -
Fava Beans Apr 14 Mar 17 (Transplant out) Jul 22
Chayote Mar 17 Apr 28 (Transplant out) -
Corn Salad Apr 14 Mar 17 (Transplant out) Aug 16
Bitter Melon Mar 17 Apr 28 (Transplant out) -
Cardoon Mar 3 Apr 14 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 3 Apr 21 (Transplant out) -
Cilantro - Mar 31 (Direct sow) Aug 26
Parsley Feb 17 Apr 28 (Transplant out) Aug 1
Dill - Apr 21 (Direct sow) Aug 16
Lemon Balm Mar 3 Apr 14 (Transplant out) -
Borage Apr 14 Apr 14 (Transplant out) Aug 21
Chervil Apr 14 Mar 24 (Transplant out) Aug 21
Lemongrass Feb 17 Apr 28 (Transplant out) -
Summer Savory Mar 3 Apr 14 (Transplant out) -
Marjoram Mar 3 Apr 21 (Transplant out) -
Lovage Mar 3 Apr 14 (Transplant out) Jul 17
Anise Hyssop Feb 17 Apr 14 (Transplant out) -
Shiso Mar 3 Apr 21 (Transplant out) -
Stevia Feb 17 Apr 28 (Transplant out) -
Chamomile Mar 3 Mar 31 (Transplant out) Aug 11
Tarragon Apr 14 Apr 14 (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 Reading Spaatz Fld, Pa, 6.1 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 19606 Local weather →