Planting Calendar for ZIP 17812
Based on your local frost dates - last spring frost around Apr 25, first fall frost around Oct 19 - here is when to plant 79 common crops near ZIP 17812.
Last spring frost
Apr 25
First fall frost
Oct 19
Hardiness zone
6b
Vegetables
| Crop | Start seeds indoors | Plant outside | Fall planting by |
|---|---|---|---|
| Tomatoes | Mar 14 | May 2 (Transplant out) | - |
| Peppers | Feb 28 | May 9 (Transplant out) | - |
| Cucumbers | Apr 4 | May 2 (Transplant out) | Aug 11 |
| Zucchini | Apr 4 | May 2 (Transplant out) | Aug 16 |
| Summer Squash | Apr 4 | May 2 (Transplant out) | Aug 14 |
| Winter Squash | Apr 4 | May 2 (Transplant out) | - |
| Pumpkins | Apr 4 | May 2 (Transplant out) | - |
| Green Beans | - | Apr 25 (Direct sow) | Aug 11 |
| Sweet Corn | - | May 2 (Direct sow) | - |
| Melons | Apr 4 | May 9 (Transplant out) | - |
| Watermelon | Apr 4 | May 9 (Transplant out) | - |
| Okra | - | May 9 (Direct sow) | - |
| Eggplant | Feb 28 | May 9 (Transplant out) | - |
| Lettuce | Mar 28 | Mar 28 (Transplant out) | Aug 16 |
| Spinach | - | Mar 14 (Direct sow) | Aug 21 |
| Kale | Mar 14 | Apr 4 (Transplant out) | Aug 11 |
| Peas | - | Mar 14 (Direct sow) | Aug 6 |
| Carrots | - | Apr 4 (Direct sow) | Jul 27 |
| Beets | - | Mar 28 (Direct sow) | Aug 11 |
| Radishes | - | Mar 28 (Direct sow) | Sep 7 |
| Broccoli | Mar 14 | Apr 11 (Transplant out) | Aug 1 |
| Cauliflower | Mar 14 | Apr 11 (Transplant out) | Jul 27 |
| Cabbage | Mar 14 | Apr 4 (Transplant out) | Jul 27 |
| Onions | Feb 14 | Mar 28 (Transplant out) | - |
| Potatoes | - | Apr 11 (Direct sow) | - |
| Swiss Chard | Mar 28 | Apr 11 (Transplant out) | Aug 11 |
| Sweet Potatoes | - | May 16 (Direct sow) | - |
| Brussels Sprouts | Mar 14 | Apr 11 (Transplant out) | Jun 27 |
| Celery | Feb 14 | May 2 (Transplant out) | - |
| Leeks | Feb 14 | Apr 11 (Transplant out) | Jun 7 |
| Turnips | - | Apr 11 (Direct sow) | Aug 16 |
| Rutabaga | - | Apr 25 (Direct sow) | Jul 2 |
| Parsnips | - | Apr 11 (Direct sow) | Jun 7 |
| Kohlrabi | Mar 28 | Apr 11 (Transplant out) | Aug 11 |
| Collard Greens | Mar 14 | Apr 11 (Transplant out) | Aug 1 |
| Mustard Greens | - | Apr 11 (Direct sow) | Aug 21 |
| Arugula | - | Apr 11 (Direct sow) | Aug 26 |
| Bok Choy | Mar 28 | Apr 11 (Transplant out) | Aug 16 |
| Green Onions | - | Apr 11 (Direct sow) | Aug 6 |
| Tomatillos | Mar 14 | May 2 (Transplant out) | - |
| Fennel | Mar 28 | Apr 11 (Transplant out) | Jul 17 |
| Popcorn | Apr 25 | May 9 (Transplant out) | - |
| Black-Eyed Peas | Apr 25 | May 9 (Transplant out) | Jul 17 |
| Lima Beans | Apr 25 | May 9 (Transplant out) | - |
| Edamame | Apr 25 | May 9 (Transplant out) | - |
| Peanuts | Apr 25 | May 9 (Transplant out) | - |
| Globe Artichoke | Feb 28 | Apr 11 (Transplant out) | Jul 7 |
| Horseradish | Apr 25 | Apr 11 (Transplant out) | - |
| Ground Cherries | Mar 14 | May 9 (Transplant out) | - |
| Radicchio | Mar 21 | Apr 11 (Transplant out) | Jul 27 |
| Endive | Mar 21 | Apr 11 (Transplant out) | Jul 7 |
| Watercress | Apr 4 | Apr 11 (Transplant out) | Aug 6 |
| Sorrel | Mar 14 | Apr 4 (Transplant out) | Aug 6 |
| Sunchokes | Apr 25 | Apr 11 (Transplant out) | - |
| Malabar Spinach | Mar 14 | May 9 (Transplant out) | - |
| Amaranth Greens | Apr 4 | May 9 (Transplant out) | Aug 21 |
| Luffa Gourd | Mar 14 | May 9 (Transplant out) | - |
| New Zealand Spinach | Mar 28 | May 9 (Transplant out) | - |
| Fava Beans | Apr 25 | Mar 28 (Transplant out) | Jul 12 |
| Chayote | Mar 28 | May 9 (Transplant out) | - |
| Corn Salad | Apr 25 | Mar 28 (Transplant out) | Aug 6 |
| Bitter Melon | Mar 28 | May 9 (Transplant out) | - |
| Cardoon | Mar 14 | Apr 25 (Transplant out) | - |
Herbs
| Crop | Start seeds indoors | Plant outside | Fall planting by |
|---|---|---|---|
| Basil | Mar 14 | May 2 (Transplant out) | - |
| Cilantro | - | Apr 11 (Direct sow) | Aug 16 |
| Parsley | Feb 28 | May 9 (Transplant out) | Jul 22 |
| Dill | - | May 2 (Direct sow) | Aug 6 |
| Lemon Balm | Mar 14 | Apr 25 (Transplant out) | - |
| Borage | Apr 25 | Apr 25 (Transplant out) | Aug 11 |
| Chervil | Apr 25 | Apr 4 (Transplant out) | Aug 11 |
| Lemongrass | Feb 28 | May 9 (Transplant out) | - |
| Summer Savory | Mar 14 | Apr 25 (Transplant out) | - |
| Marjoram | Mar 14 | May 2 (Transplant out) | - |
| Lovage | Mar 14 | Apr 25 (Transplant out) | Jul 7 |
| Anise Hyssop | Feb 28 | Apr 25 (Transplant out) | - |
| Shiso | Mar 14 | May 2 (Transplant out) | - |
| Stevia | Feb 28 | May 9 (Transplant out) | - |
| Chamomile | Mar 14 | Apr 11 (Transplant out) | Aug 1 |
| Tarragon | Apr 25 | Apr 25 (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 Laurelton Ctr, Pa, 11.7 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.