Harman US

Planting Calendar for ZIP 94538

Based on your local frost dates - last spring frost around Jan 1, first fall frost around Dec 27 - here is when to plant 79 common crops near ZIP 94538.

Last spring frost
Jan 1
First fall frost
Dec 27
Hardiness zone
10a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Nov 20 Jan 8 (Transplant out) -
Peppers Nov 6 Jan 15 (Transplant out) -
Cucumbers Dec 11 Jan 8 (Transplant out) Oct 19
Zucchini Dec 11 Jan 8 (Transplant out) Oct 24
Summer Squash Dec 11 Jan 8 (Transplant out) Oct 22
Winter Squash Dec 11 Jan 8 (Transplant out) -
Pumpkins Dec 11 Jan 8 (Transplant out) -
Green Beans - Jan 1 (Direct sow) Oct 19
Sweet Corn - Jan 8 (Direct sow) -
Melons Dec 11 Jan 15 (Transplant out) -
Watermelon Dec 11 Jan 15 (Transplant out) -
Okra - Jan 15 (Direct sow) -
Eggplant Nov 6 Jan 15 (Transplant out) -
Lettuce Dec 4 Dec 4 (Transplant out) Oct 24
Spinach - Nov 20 (Direct sow) Oct 29
Kale Nov 20 Dec 11 (Transplant out) Oct 19
Peas - Nov 20 (Direct sow) Oct 14
Carrots - Dec 11 (Direct sow) Oct 4
Beets - Dec 4 (Direct sow) Oct 19
Radishes - Dec 4 (Direct sow) Nov 15
Broccoli Nov 20 Dec 18 (Transplant out) Oct 9
Cauliflower Nov 20 Dec 18 (Transplant out) Oct 4
Cabbage Nov 20 Dec 11 (Transplant out) Oct 4
Onions Oct 23 Dec 4 (Transplant out) -
Potatoes - Dec 18 (Direct sow) -
Swiss Chard Dec 4 Dec 18 (Transplant out) Oct 19
Sweet Potatoes - Jan 22 (Direct sow) -
Brussels Sprouts Nov 20 Dec 18 (Transplant out) Sep 4
Celery Oct 23 Jan 8 (Transplant out) -
Leeks Oct 23 Dec 18 (Transplant out) Aug 15
Turnips - Dec 18 (Direct sow) Oct 24
Rutabaga - Jan 1 (Direct sow) Sep 9
Parsnips - Dec 18 (Direct sow) Aug 15
Kohlrabi Dec 4 Dec 18 (Transplant out) Oct 19
Collard Greens Nov 20 Dec 18 (Transplant out) Oct 9
Mustard Greens - Dec 18 (Direct sow) Oct 29
Arugula - Dec 18 (Direct sow) Nov 3
Bok Choy Dec 4 Dec 18 (Transplant out) Oct 24
Green Onions - Dec 18 (Direct sow) Oct 14
Tomatillos Nov 20 Jan 8 (Transplant out) -
Fennel Dec 4 Dec 18 (Transplant out) Sep 24
Popcorn Jan 1 Jan 15 (Transplant out) -
Black-Eyed Peas Jan 1 Jan 15 (Transplant out) Sep 24
Lima Beans Jan 1 Jan 15 (Transplant out) -
Edamame Jan 1 Jan 15 (Transplant out) -
Peanuts Jan 1 Jan 15 (Transplant out) -
Globe Artichoke Nov 6 Dec 18 (Transplant out) Sep 14
Horseradish Jan 1 Dec 18 (Transplant out) -
Ground Cherries Nov 20 Jan 15 (Transplant out) -
Radicchio Nov 27 Dec 18 (Transplant out) Oct 4
Endive Nov 27 Dec 18 (Transplant out) Sep 14
Watercress Dec 11 Dec 18 (Transplant out) Oct 14
Sorrel Nov 20 Dec 11 (Transplant out) Oct 14
Sunchokes Jan 1 Dec 18 (Transplant out) -
Malabar Spinach Nov 20 Jan 15 (Transplant out) -
Amaranth Greens Dec 11 Jan 15 (Transplant out) Oct 29
Luffa Gourd Nov 20 Jan 15 (Transplant out) -
New Zealand Spinach Dec 4 Jan 15 (Transplant out) -
Fava Beans Jan 1 Dec 4 (Transplant out) Sep 19
Chayote Dec 4 Jan 15 (Transplant out) -
Corn Salad Jan 1 Dec 4 (Transplant out) Oct 14
Bitter Melon Dec 4 Jan 15 (Transplant out) -
Cardoon Nov 20 Jan 1 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Nov 20 Jan 8 (Transplant out) -
Cilantro - Dec 18 (Direct sow) Oct 24
Parsley Nov 6 Jan 15 (Transplant out) Sep 29
Dill - Jan 8 (Direct sow) Oct 14
Lemon Balm Nov 20 Jan 1 (Transplant out) -
Borage Jan 1 Jan 1 (Transplant out) Oct 19
Chervil Jan 1 Dec 11 (Transplant out) Oct 19
Lemongrass Nov 6 Jan 15 (Transplant out) -
Summer Savory Nov 20 Jan 1 (Transplant out) -
Marjoram Nov 20 Jan 8 (Transplant out) -
Lovage Nov 20 Jan 1 (Transplant out) Sep 14
Anise Hyssop Nov 6 Jan 1 (Transplant out) -
Shiso Nov 20 Jan 8 (Transplant out) -
Stevia Nov 6 Jan 15 (Transplant out) -
Chamomile Nov 20 Dec 18 (Transplant out) Oct 9
Tarragon Jan 1 Jan 1 (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 Newark, Ca, 4.3 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

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