Harman US

Planting Calendar for ZIP 93440

Based on your local frost dates - last spring frost around Jan 20, first fall frost around Dec 19 - here is when to plant 79 common crops near ZIP 93440.

Last spring frost
Jan 20
First fall frost
Dec 19
Hardiness zone
9b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Dec 9 Jan 27 (Transplant out) -
Peppers Nov 25 Feb 3 (Transplant out) -
Cucumbers Dec 30 Jan 27 (Transplant out) Oct 11
Zucchini Dec 30 Jan 27 (Transplant out) Oct 16
Summer Squash Dec 30 Jan 27 (Transplant out) Oct 14
Winter Squash Dec 30 Jan 27 (Transplant out) -
Pumpkins Dec 30 Jan 27 (Transplant out) -
Green Beans - Jan 20 (Direct sow) Oct 11
Sweet Corn - Jan 27 (Direct sow) -
Melons Dec 30 Feb 3 (Transplant out) -
Watermelon Dec 30 Feb 3 (Transplant out) -
Okra - Feb 3 (Direct sow) -
Eggplant Nov 25 Feb 3 (Transplant out) -
Lettuce Dec 23 Dec 23 (Transplant out) Oct 16
Spinach - Dec 9 (Direct sow) Oct 21
Kale Dec 9 Dec 30 (Transplant out) Oct 11
Peas - Dec 9 (Direct sow) Oct 6
Carrots - Dec 30 (Direct sow) Sep 26
Beets - Dec 23 (Direct sow) Oct 11
Radishes - Dec 23 (Direct sow) Nov 7
Broccoli Dec 9 Jan 6 (Transplant out) Oct 1
Cauliflower Dec 9 Jan 6 (Transplant out) Sep 26
Cabbage Dec 9 Dec 30 (Transplant out) Sep 26
Onions Nov 11 Dec 23 (Transplant out) -
Potatoes - Jan 6 (Direct sow) -
Swiss Chard Dec 23 Jan 6 (Transplant out) Oct 11
Sweet Potatoes - Feb 10 (Direct sow) -
Brussels Sprouts Dec 9 Jan 6 (Transplant out) Aug 27
Celery Nov 11 Jan 27 (Transplant out) -
Leeks Nov 11 Jan 6 (Transplant out) Aug 7
Turnips - Jan 6 (Direct sow) Oct 16
Rutabaga - Jan 20 (Direct sow) Sep 1
Parsnips - Jan 6 (Direct sow) Aug 7
Kohlrabi Dec 23 Jan 6 (Transplant out) Oct 11
Collard Greens Dec 9 Jan 6 (Transplant out) Oct 1
Mustard Greens - Jan 6 (Direct sow) Oct 21
Arugula - Jan 6 (Direct sow) Oct 26
Bok Choy Dec 23 Jan 6 (Transplant out) Oct 16
Green Onions - Jan 6 (Direct sow) Oct 6
Tomatillos Dec 9 Jan 27 (Transplant out) -
Fennel Dec 23 Jan 6 (Transplant out) Sep 16
Popcorn Jan 20 Feb 3 (Transplant out) -
Black-Eyed Peas Jan 20 Feb 3 (Transplant out) Sep 16
Lima Beans Jan 20 Feb 3 (Transplant out) -
Edamame Jan 20 Feb 3 (Transplant out) -
Peanuts Jan 20 Feb 3 (Transplant out) -
Globe Artichoke Nov 25 Jan 6 (Transplant out) Sep 6
Horseradish Jan 20 Jan 6 (Transplant out) -
Ground Cherries Dec 9 Feb 3 (Transplant out) -
Radicchio Dec 16 Jan 6 (Transplant out) Sep 26
Endive Dec 16 Jan 6 (Transplant out) Sep 6
Watercress Dec 30 Jan 6 (Transplant out) Oct 6
Sorrel Dec 9 Dec 30 (Transplant out) Oct 6
Sunchokes Jan 20 Jan 6 (Transplant out) -
Malabar Spinach Dec 9 Feb 3 (Transplant out) -
Amaranth Greens Dec 30 Feb 3 (Transplant out) Oct 21
Luffa Gourd Dec 9 Feb 3 (Transplant out) -
New Zealand Spinach Dec 23 Feb 3 (Transplant out) -
Fava Beans Jan 20 Dec 23 (Transplant out) Sep 11
Chayote Dec 23 Feb 3 (Transplant out) -
Corn Salad Jan 20 Dec 23 (Transplant out) Oct 6
Bitter Melon Dec 23 Feb 3 (Transplant out) -
Cardoon Dec 9 Jan 20 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Dec 9 Jan 27 (Transplant out) -
Cilantro - Jan 6 (Direct sow) Oct 16
Parsley Nov 25 Feb 3 (Transplant out) Sep 21
Dill - Jan 27 (Direct sow) Oct 6
Lemon Balm Dec 9 Jan 20 (Transplant out) -
Borage Jan 20 Jan 20 (Transplant out) Oct 11
Chervil Jan 20 Dec 30 (Transplant out) Oct 11
Lemongrass Nov 25 Feb 3 (Transplant out) -
Summer Savory Dec 9 Jan 20 (Transplant out) -
Marjoram Dec 9 Jan 27 (Transplant out) -
Lovage Dec 9 Jan 20 (Transplant out) Sep 6
Anise Hyssop Nov 25 Jan 20 (Transplant out) -
Shiso Dec 9 Jan 27 (Transplant out) -
Stevia Nov 25 Feb 3 (Transplant out) -
Chamomile Dec 9 Jan 6 (Transplant out) Oct 1
Tarragon Jan 20 Jan 20 (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 Lompoc, Ca, 13.5 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

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