Harman US

Planting Calendar for ZIP 18230

Based on your local frost dates - last spring frost around Apr 30, first fall frost around Oct 22 - here is when to plant 79 common crops near ZIP 18230.

Last spring frost
Apr 30
First fall frost
Oct 22
Hardiness zone
6b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Mar 19 May 7 (Transplant out) -
Peppers Mar 5 May 14 (Transplant out) -
Cucumbers Apr 9 May 7 (Transplant out) Aug 14
Zucchini Apr 9 May 7 (Transplant out) Aug 19
Summer Squash Apr 9 May 7 (Transplant out) Aug 17
Winter Squash Apr 9 May 7 (Transplant out) -
Pumpkins Apr 9 May 7 (Transplant out) -
Green Beans - Apr 30 (Direct sow) Aug 14
Sweet Corn - May 7 (Direct sow) -
Melons Apr 9 May 14 (Transplant out) -
Watermelon Apr 9 May 14 (Transplant out) -
Okra - May 14 (Direct sow) -
Eggplant Mar 5 May 14 (Transplant out) -
Lettuce Apr 2 Apr 2 (Transplant out) Aug 19
Spinach - Mar 19 (Direct sow) Aug 24
Kale Mar 19 Apr 9 (Transplant out) Aug 14
Peas - Mar 19 (Direct sow) Aug 9
Carrots - Apr 9 (Direct sow) Jul 30
Beets - Apr 2 (Direct sow) Aug 14
Radishes - Apr 2 (Direct sow) Sep 10
Broccoli Mar 19 Apr 16 (Transplant out) Aug 4
Cauliflower Mar 19 Apr 16 (Transplant out) Jul 30
Cabbage Mar 19 Apr 9 (Transplant out) Jul 30
Onions Feb 19 Apr 2 (Transplant out) -
Potatoes - Apr 16 (Direct sow) -
Swiss Chard Apr 2 Apr 16 (Transplant out) Aug 14
Sweet Potatoes - May 21 (Direct sow) -
Brussels Sprouts Mar 19 Apr 16 (Transplant out) Jun 30
Celery Feb 19 May 7 (Transplant out) -
Leeks Feb 19 Apr 16 (Transplant out) Jun 10
Turnips - Apr 16 (Direct sow) Aug 19
Rutabaga - Apr 30 (Direct sow) Jul 5
Parsnips - Apr 16 (Direct sow) Jun 10
Kohlrabi Apr 2 Apr 16 (Transplant out) Aug 14
Collard Greens Mar 19 Apr 16 (Transplant out) Aug 4
Mustard Greens - Apr 16 (Direct sow) Aug 24
Arugula - Apr 16 (Direct sow) Aug 29
Bok Choy Apr 2 Apr 16 (Transplant out) Aug 19
Green Onions - Apr 16 (Direct sow) Aug 9
Tomatillos Mar 19 May 7 (Transplant out) -
Fennel Apr 2 Apr 16 (Transplant out) Jul 20
Popcorn Apr 30 May 14 (Transplant out) -
Black-Eyed Peas Apr 30 May 14 (Transplant out) Jul 20
Lima Beans Apr 30 May 14 (Transplant out) -
Edamame Apr 30 May 14 (Transplant out) -
Peanuts Apr 30 May 14 (Transplant out) -
Globe Artichoke Mar 5 Apr 16 (Transplant out) Jul 10
Horseradish Apr 30 Apr 16 (Transplant out) -
Ground Cherries Mar 19 May 14 (Transplant out) -
Radicchio Mar 26 Apr 16 (Transplant out) Jul 30
Endive Mar 26 Apr 16 (Transplant out) Jul 10
Watercress Apr 9 Apr 16 (Transplant out) Aug 9
Sorrel Mar 19 Apr 9 (Transplant out) Aug 9
Sunchokes Apr 30 Apr 16 (Transplant out) -
Malabar Spinach Mar 19 May 14 (Transplant out) -
Amaranth Greens Apr 9 May 14 (Transplant out) Aug 24
Luffa Gourd Mar 19 May 14 (Transplant out) -
New Zealand Spinach Apr 2 May 14 (Transplant out) -
Fava Beans Apr 30 Apr 2 (Transplant out) Jul 15
Chayote Apr 2 May 14 (Transplant out) -
Corn Salad Apr 30 Apr 2 (Transplant out) Aug 9
Bitter Melon Apr 2 May 14 (Transplant out) -
Cardoon Mar 19 Apr 30 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Mar 19 May 7 (Transplant out) -
Cilantro - Apr 16 (Direct sow) Aug 19
Parsley Mar 5 May 14 (Transplant out) Jul 25
Dill - May 7 (Direct sow) Aug 9
Lemon Balm Mar 19 Apr 30 (Transplant out) -
Borage Apr 30 Apr 30 (Transplant out) Aug 14
Chervil Apr 30 Apr 9 (Transplant out) Aug 14
Lemongrass Mar 5 May 14 (Transplant out) -
Summer Savory Mar 19 Apr 30 (Transplant out) -
Marjoram Mar 19 May 7 (Transplant out) -
Lovage Mar 19 Apr 30 (Transplant out) Jul 10
Anise Hyssop Mar 5 Apr 30 (Transplant out) -
Shiso Mar 19 May 7 (Transplant out) -
Stevia Mar 5 May 14 (Transplant out) -
Chamomile Mar 19 Apr 16 (Transplant out) Aug 4
Tarragon Apr 30 Apr 30 (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 Mahanoy City 2 N, Pa, 12.6 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 18230 Local weather →