Harman US

Planting Calendar for ZIP 92377

Based on your local frost dates - last spring frost around Jan 10, first fall frost around Jan 2 - here is when to plant 79 common crops near ZIP 92377.

Last spring frost
Jan 10
First fall frost
Jan 2
Hardiness zone
10a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Nov 29 Jan 17 (Transplant out) -
Peppers Nov 15 Jan 24 (Transplant out) -
Cucumbers Dec 20 Jan 17 (Transplant out) Oct 25
Zucchini Dec 20 Jan 17 (Transplant out) Oct 30
Summer Squash Dec 20 Jan 17 (Transplant out) Oct 28
Winter Squash Dec 20 Jan 17 (Transplant out) -
Pumpkins Dec 20 Jan 17 (Transplant out) -
Green Beans - Jan 10 (Direct sow) Oct 25
Sweet Corn - Jan 17 (Direct sow) -
Melons Dec 20 Jan 24 (Transplant out) -
Watermelon Dec 20 Jan 24 (Transplant out) -
Okra - Jan 24 (Direct sow) -
Eggplant Nov 15 Jan 24 (Transplant out) -
Lettuce Dec 13 Dec 13 (Transplant out) Oct 30
Spinach - Nov 29 (Direct sow) Nov 4
Kale Nov 29 Dec 20 (Transplant out) Oct 25
Peas - Nov 29 (Direct sow) Oct 20
Carrots - Dec 20 (Direct sow) Oct 10
Beets - Dec 13 (Direct sow) Oct 25
Radishes - Dec 13 (Direct sow) Nov 21
Broccoli Nov 29 Dec 27 (Transplant out) Oct 15
Cauliflower Nov 29 Dec 27 (Transplant out) Oct 10
Cabbage Nov 29 Dec 20 (Transplant out) Oct 10
Onions Nov 1 Dec 13 (Transplant out) -
Potatoes - Dec 27 (Direct sow) -
Swiss Chard Dec 13 Dec 27 (Transplant out) Oct 25
Sweet Potatoes - Jan 31 (Direct sow) -
Brussels Sprouts Nov 29 Dec 27 (Transplant out) Sep 10
Celery Nov 1 Jan 17 (Transplant out) -
Leeks Nov 1 Dec 27 (Transplant out) Aug 21
Turnips - Dec 27 (Direct sow) Oct 30
Rutabaga - Jan 10 (Direct sow) Sep 15
Parsnips - Dec 27 (Direct sow) Aug 21
Kohlrabi Dec 13 Dec 27 (Transplant out) Oct 25
Collard Greens Nov 29 Dec 27 (Transplant out) Oct 15
Mustard Greens - Dec 27 (Direct sow) Nov 4
Arugula - Dec 27 (Direct sow) Nov 9
Bok Choy Dec 13 Dec 27 (Transplant out) Oct 30
Green Onions - Dec 27 (Direct sow) Oct 20
Tomatillos Nov 29 Jan 17 (Transplant out) -
Fennel Dec 13 Dec 27 (Transplant out) Sep 30
Popcorn Jan 10 Jan 24 (Transplant out) -
Black-Eyed Peas Jan 10 Jan 24 (Transplant out) Sep 30
Lima Beans Jan 10 Jan 24 (Transplant out) -
Edamame Jan 10 Jan 24 (Transplant out) -
Peanuts Jan 10 Jan 24 (Transplant out) -
Globe Artichoke Nov 15 Dec 27 (Transplant out) Sep 20
Horseradish Jan 10 Dec 27 (Transplant out) -
Ground Cherries Nov 29 Jan 24 (Transplant out) -
Radicchio Dec 6 Dec 27 (Transplant out) Oct 10
Endive Dec 6 Dec 27 (Transplant out) Sep 20
Watercress Dec 20 Dec 27 (Transplant out) Oct 20
Sorrel Nov 29 Dec 20 (Transplant out) Oct 20
Sunchokes Jan 10 Dec 27 (Transplant out) -
Malabar Spinach Nov 29 Jan 24 (Transplant out) -
Amaranth Greens Dec 20 Jan 24 (Transplant out) Nov 4
Luffa Gourd Nov 29 Jan 24 (Transplant out) -
New Zealand Spinach Dec 13 Jan 24 (Transplant out) -
Fava Beans Jan 10 Dec 13 (Transplant out) Sep 25
Chayote Dec 13 Jan 24 (Transplant out) -
Corn Salad Jan 10 Dec 13 (Transplant out) Oct 20
Bitter Melon Dec 13 Jan 24 (Transplant out) -
Cardoon Nov 29 Jan 10 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Nov 29 Jan 17 (Transplant out) -
Cilantro - Dec 27 (Direct sow) Oct 30
Parsley Nov 15 Jan 24 (Transplant out) Oct 5
Dill - Jan 17 (Direct sow) Oct 20
Lemon Balm Nov 29 Jan 10 (Transplant out) -
Borage Jan 10 Jan 10 (Transplant out) Oct 25
Chervil Jan 10 Dec 20 (Transplant out) Oct 25
Lemongrass Nov 15 Jan 24 (Transplant out) -
Summer Savory Nov 29 Jan 10 (Transplant out) -
Marjoram Nov 29 Jan 17 (Transplant out) -
Lovage Nov 29 Jan 10 (Transplant out) Sep 20
Anise Hyssop Nov 15 Jan 10 (Transplant out) -
Shiso Nov 29 Jan 17 (Transplant out) -
Stevia Nov 15 Jan 24 (Transplant out) -
Chamomile Nov 29 Dec 27 (Transplant out) Oct 15
Tarragon Jan 10 Jan 10 (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 Riverside Citrus Exp, Ca, 13 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 92377 Local weather →