Harman US

Planting Calendar for ZIP 94304

Based on your local frost dates - last spring frost around Feb 1, first fall frost around Dec 7 - here is when to plant 79 common crops near ZIP 94304.

Last spring frost
Feb 1
First fall frost
Dec 7
Hardiness zone
9b

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Dec 21 Feb 8 (Transplant out) -
Peppers Dec 7 Feb 15 (Transplant out) -
Cucumbers Jan 11 Feb 8 (Transplant out) Sep 29
Zucchini Jan 11 Feb 8 (Transplant out) Oct 4
Summer Squash Jan 11 Feb 8 (Transplant out) Oct 2
Winter Squash Jan 11 Feb 8 (Transplant out) -
Pumpkins Jan 11 Feb 8 (Transplant out) -
Green Beans - Feb 1 (Direct sow) Sep 29
Sweet Corn - Feb 8 (Direct sow) -
Melons Jan 11 Feb 15 (Transplant out) -
Watermelon Jan 11 Feb 15 (Transplant out) -
Okra - Feb 15 (Direct sow) -
Eggplant Dec 7 Feb 15 (Transplant out) -
Lettuce Jan 4 Jan 4 (Transplant out) Oct 4
Spinach - Dec 21 (Direct sow) Oct 9
Kale Dec 21 Jan 11 (Transplant out) Sep 29
Peas - Dec 21 (Direct sow) Sep 24
Carrots - Jan 11 (Direct sow) Sep 14
Beets - Jan 4 (Direct sow) Sep 29
Radishes - Jan 4 (Direct sow) Oct 26
Broccoli Dec 21 Jan 18 (Transplant out) Sep 19
Cauliflower Dec 21 Jan 18 (Transplant out) Sep 14
Cabbage Dec 21 Jan 11 (Transplant out) Sep 14
Onions Nov 23 Jan 4 (Transplant out) -
Potatoes - Jan 18 (Direct sow) -
Swiss Chard Jan 4 Jan 18 (Transplant out) Sep 29
Sweet Potatoes - Feb 22 (Direct sow) -
Brussels Sprouts Dec 21 Jan 18 (Transplant out) Aug 15
Celery Nov 23 Feb 8 (Transplant out) -
Leeks Nov 23 Jan 18 (Transplant out) Jul 26
Turnips - Jan 18 (Direct sow) Oct 4
Rutabaga - Feb 1 (Direct sow) Aug 20
Parsnips - Jan 18 (Direct sow) Jul 26
Kohlrabi Jan 4 Jan 18 (Transplant out) Sep 29
Collard Greens Dec 21 Jan 18 (Transplant out) Sep 19
Mustard Greens - Jan 18 (Direct sow) Oct 9
Arugula - Jan 18 (Direct sow) Oct 14
Bok Choy Jan 4 Jan 18 (Transplant out) Oct 4
Green Onions - Jan 18 (Direct sow) Sep 24
Tomatillos Dec 21 Feb 8 (Transplant out) -
Fennel Jan 4 Jan 18 (Transplant out) Sep 4
Popcorn Feb 1 Feb 15 (Transplant out) -
Black-Eyed Peas Feb 1 Feb 15 (Transplant out) Sep 4
Lima Beans Feb 1 Feb 15 (Transplant out) -
Edamame Feb 1 Feb 15 (Transplant out) -
Peanuts Feb 1 Feb 15 (Transplant out) -
Globe Artichoke Dec 7 Jan 18 (Transplant out) Aug 25
Horseradish Feb 1 Jan 18 (Transplant out) -
Ground Cherries Dec 21 Feb 15 (Transplant out) -
Radicchio Dec 28 Jan 18 (Transplant out) Sep 14
Endive Dec 28 Jan 18 (Transplant out) Aug 25
Watercress Jan 11 Jan 18 (Transplant out) Sep 24
Sorrel Dec 21 Jan 11 (Transplant out) Sep 24
Sunchokes Feb 1 Jan 18 (Transplant out) -
Malabar Spinach Dec 21 Feb 15 (Transplant out) -
Amaranth Greens Jan 11 Feb 15 (Transplant out) Oct 9
Luffa Gourd Dec 21 Feb 15 (Transplant out) -
New Zealand Spinach Jan 4 Feb 15 (Transplant out) -
Fava Beans Feb 1 Jan 4 (Transplant out) Aug 30
Chayote Jan 4 Feb 15 (Transplant out) -
Corn Salad Feb 1 Jan 4 (Transplant out) Sep 24
Bitter Melon Jan 4 Feb 15 (Transplant out) -
Cardoon Dec 21 Feb 1 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Dec 21 Feb 8 (Transplant out) -
Cilantro - Jan 18 (Direct sow) Oct 4
Parsley Dec 7 Feb 15 (Transplant out) Sep 9
Dill - Feb 8 (Direct sow) Sep 24
Lemon Balm Dec 21 Feb 1 (Transplant out) -
Borage Feb 1 Feb 1 (Transplant out) Sep 29
Chervil Feb 1 Jan 11 (Transplant out) Sep 29
Lemongrass Dec 7 Feb 15 (Transplant out) -
Summer Savory Dec 21 Feb 1 (Transplant out) -
Marjoram Dec 21 Feb 8 (Transplant out) -
Lovage Dec 21 Feb 1 (Transplant out) Aug 25
Anise Hyssop Dec 7 Feb 1 (Transplant out) -
Shiso Dec 21 Feb 8 (Transplant out) -
Stevia Dec 7 Feb 15 (Transplant out) -
Chamomile Dec 21 Jan 18 (Transplant out) Sep 19
Tarragon Feb 1 Feb 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 Palo Alto, Ca, 3.5 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 94304 Local weather →