Harman US

Planting Calendar for ZIP 04451

Based on your local frost dates - last spring frost around May 25, first fall frost around Sep 24 - here is when to plant 79 common crops near ZIP 04451.

Last spring frost
May 25
First fall frost
Sep 24
Hardiness zone
5a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Apr 13 Jun 1 (Transplant out) -
Peppers Mar 30 Jun 8 (Transplant out) -
Cucumbers May 4 Jun 1 (Transplant out) Jul 17
Zucchini May 4 Jun 1 (Transplant out) Jul 22
Summer Squash May 4 Jun 1 (Transplant out) Jul 20
Winter Squash May 4 Jun 1 (Transplant out) -
Pumpkins May 4 Jun 1 (Transplant out) -
Green Beans - May 25 (Direct sow) Jul 17
Sweet Corn - Jun 1 (Direct sow) -
Melons May 4 Jun 8 (Transplant out) -
Watermelon May 4 Jun 8 (Transplant out) -
Okra - Jun 8 (Direct sow) -
Eggplant Mar 30 Jun 8 (Transplant out) -
Lettuce Apr 27 Apr 27 (Transplant out) Jul 22
Spinach - Apr 13 (Direct sow) Jul 27
Kale Apr 13 May 4 (Transplant out) Jul 17
Peas - Apr 13 (Direct sow) Jul 12
Carrots - May 4 (Direct sow) Jul 2
Beets - Apr 27 (Direct sow) Jul 17
Radishes - Apr 27 (Direct sow) Aug 13
Broccoli Apr 13 May 11 (Transplant out) Jul 7
Cauliflower Apr 13 May 11 (Transplant out) Jul 2
Cabbage Apr 13 May 4 (Transplant out) Jul 2
Onions Mar 16 Apr 27 (Transplant out) -
Potatoes - May 11 (Direct sow) -
Swiss Chard Apr 27 May 11 (Transplant out) Jul 17
Sweet Potatoes - Jun 15 (Direct sow) -
Brussels Sprouts Apr 13 May 11 (Transplant out) Jun 2
Celery Mar 16 Jun 1 (Transplant out) -
Leeks Mar 16 May 11 (Transplant out) May 13
Turnips - May 11 (Direct sow) Jul 22
Rutabaga - May 25 (Direct sow) Jun 7
Parsnips - May 11 (Direct sow) May 13
Kohlrabi Apr 27 May 11 (Transplant out) Jul 17
Collard Greens Apr 13 May 11 (Transplant out) Jul 7
Mustard Greens - May 11 (Direct sow) Jul 27
Arugula - May 11 (Direct sow) Aug 1
Bok Choy Apr 27 May 11 (Transplant out) Jul 22
Green Onions - May 11 (Direct sow) Jul 12
Tomatillos Apr 13 Jun 1 (Transplant out) -
Fennel Apr 27 May 11 (Transplant out) Jun 22
Popcorn May 25 Jun 8 (Transplant out) -
Black-Eyed Peas May 25 Jun 8 (Transplant out) Jun 22
Lima Beans May 25 Jun 8 (Transplant out) -
Edamame May 25 Jun 8 (Transplant out) -
Peanuts May 25 Jun 8 (Transplant out) -
Globe Artichoke Mar 30 May 11 (Transplant out) Jun 12
Horseradish May 25 May 11 (Transplant out) -
Ground Cherries Apr 13 Jun 8 (Transplant out) -
Radicchio Apr 20 May 11 (Transplant out) Jul 2
Endive Apr 20 May 11 (Transplant out) Jun 12
Watercress May 4 May 11 (Transplant out) Jul 12
Sorrel Apr 13 May 4 (Transplant out) Jul 12
Sunchokes May 25 May 11 (Transplant out) -
Malabar Spinach Apr 13 Jun 8 (Transplant out) -
Amaranth Greens May 4 Jun 8 (Transplant out) Jul 27
Luffa Gourd Apr 13 Jun 8 (Transplant out) -
New Zealand Spinach Apr 27 Jun 8 (Transplant out) -
Fava Beans May 25 Apr 27 (Transplant out) Jun 17
Chayote Apr 27 Jun 8 (Transplant out) -
Corn Salad May 25 Apr 27 (Transplant out) Jul 12
Bitter Melon Apr 27 Jun 8 (Transplant out) -
Cardoon Apr 13 May 25 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Apr 13 Jun 1 (Transplant out) -
Cilantro - May 11 (Direct sow) Jul 22
Parsley Mar 30 Jun 8 (Transplant out) Jun 27
Dill - Jun 1 (Direct sow) Jul 12
Lemon Balm Apr 13 May 25 (Transplant out) -
Borage May 25 May 25 (Transplant out) Jul 17
Chervil May 25 May 4 (Transplant out) Jul 17
Lemongrass Mar 30 Jun 8 (Transplant out) -
Summer Savory Apr 13 May 25 (Transplant out) -
Marjoram Apr 13 Jun 1 (Transplant out) -
Lovage Apr 13 May 25 (Transplant out) Jun 12
Anise Hyssop Mar 30 May 25 (Transplant out) -
Shiso Apr 13 Jun 1 (Transplant out) -
Stevia Mar 30 Jun 8 (Transplant out) -
Chamomile Apr 13 May 11 (Transplant out) Jul 7
Tarragon May 25 May 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 Danforth, Me, 17.9 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 04451 Local weather →