Harman US

Planting Calendar for ZIP 98284

Based on your local frost dates - last spring frost around Mar 27, first fall frost around Nov 6 - here is when to plant 79 common crops near ZIP 98284.

Last spring frost
Mar 27
First fall frost
Nov 6
Hardiness zone
8b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Feb 13 Apr 3 (Transplant out) -
Peppers Jan 30 Apr 10 (Transplant out) -
Cucumbers Mar 6 Apr 3 (Transplant out) Aug 29
Zucchini Mar 6 Apr 3 (Transplant out) Sep 3
Summer Squash Mar 6 Apr 3 (Transplant out) Sep 1
Winter Squash Mar 6 Apr 3 (Transplant out) -
Pumpkins Mar 6 Apr 3 (Transplant out) -
Green Beans - Mar 27 (Direct sow) Aug 29
Sweet Corn - Apr 3 (Direct sow) -
Melons Mar 6 Apr 10 (Transplant out) -
Watermelon Mar 6 Apr 10 (Transplant out) -
Okra - Apr 10 (Direct sow) -
Eggplant Jan 30 Apr 10 (Transplant out) -
Lettuce Feb 27 Feb 27 (Transplant out) Sep 3
Spinach - Feb 13 (Direct sow) Sep 8
Kale Feb 13 Mar 6 (Transplant out) Aug 29
Peas - Feb 13 (Direct sow) Aug 24
Carrots - Mar 6 (Direct sow) Aug 14
Beets - Feb 27 (Direct sow) Aug 29
Radishes - Feb 27 (Direct sow) Sep 25
Broccoli Feb 13 Mar 13 (Transplant out) Aug 19
Cauliflower Feb 13 Mar 13 (Transplant out) Aug 14
Cabbage Feb 13 Mar 6 (Transplant out) Aug 14
Onions Jan 16 Feb 27 (Transplant out) -
Potatoes - Mar 13 (Direct sow) -
Swiss Chard Feb 27 Mar 13 (Transplant out) Aug 29
Sweet Potatoes - Apr 17 (Direct sow) -
Brussels Sprouts Feb 13 Mar 13 (Transplant out) Jul 15
Celery Jan 16 Apr 3 (Transplant out) -
Leeks Jan 16 Mar 13 (Transplant out) Jun 25
Turnips - Mar 13 (Direct sow) Sep 3
Rutabaga - Mar 27 (Direct sow) Jul 20
Parsnips - Mar 13 (Direct sow) Jun 25
Kohlrabi Feb 27 Mar 13 (Transplant out) Aug 29
Collard Greens Feb 13 Mar 13 (Transplant out) Aug 19
Mustard Greens - Mar 13 (Direct sow) Sep 8
Arugula - Mar 13 (Direct sow) Sep 13
Bok Choy Feb 27 Mar 13 (Transplant out) Sep 3
Green Onions - Mar 13 (Direct sow) Aug 24
Tomatillos Feb 13 Apr 3 (Transplant out) -
Fennel Feb 27 Mar 13 (Transplant out) Aug 4
Popcorn Mar 27 Apr 10 (Transplant out) -
Black-Eyed Peas Mar 27 Apr 10 (Transplant out) Aug 4
Lima Beans Mar 27 Apr 10 (Transplant out) -
Edamame Mar 27 Apr 10 (Transplant out) -
Peanuts Mar 27 Apr 10 (Transplant out) -
Globe Artichoke Jan 30 Mar 13 (Transplant out) Jul 25
Horseradish Mar 27 Mar 13 (Transplant out) -
Ground Cherries Feb 13 Apr 10 (Transplant out) -
Radicchio Feb 20 Mar 13 (Transplant out) Aug 14
Endive Feb 20 Mar 13 (Transplant out) Jul 25
Watercress Mar 6 Mar 13 (Transplant out) Aug 24
Sorrel Feb 13 Mar 6 (Transplant out) Aug 24
Sunchokes Mar 27 Mar 13 (Transplant out) -
Malabar Spinach Feb 13 Apr 10 (Transplant out) -
Amaranth Greens Mar 6 Apr 10 (Transplant out) Sep 8
Luffa Gourd Feb 13 Apr 10 (Transplant out) -
New Zealand Spinach Feb 27 Apr 10 (Transplant out) -
Fava Beans Mar 27 Feb 27 (Transplant out) Jul 30
Chayote Feb 27 Apr 10 (Transplant out) -
Corn Salad Mar 27 Feb 27 (Transplant out) Aug 24
Bitter Melon Feb 27 Apr 10 (Transplant out) -
Cardoon Feb 13 Mar 27 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Feb 13 Apr 3 (Transplant out) -
Cilantro - Mar 13 (Direct sow) Sep 3
Parsley Jan 30 Apr 10 (Transplant out) Aug 9
Dill - Apr 3 (Direct sow) Aug 24
Lemon Balm Feb 13 Mar 27 (Transplant out) -
Borage Mar 27 Mar 27 (Transplant out) Aug 29
Chervil Mar 27 Mar 6 (Transplant out) Aug 29
Lemongrass Jan 30 Apr 10 (Transplant out) -
Summer Savory Feb 13 Mar 27 (Transplant out) -
Marjoram Feb 13 Apr 3 (Transplant out) -
Lovage Feb 13 Mar 27 (Transplant out) Jul 25
Anise Hyssop Jan 30 Mar 27 (Transplant out) -
Shiso Feb 13 Apr 3 (Transplant out) -
Stevia Jan 30 Apr 10 (Transplant out) -
Chamomile Feb 13 Mar 13 (Transplant out) Aug 19
Tarragon Mar 27 Mar 27 (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 Sedro-Woolley, Wa, 5.8 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 98284 Local weather →