Harman US

Planting Calendar for ZIP 92506

Based on your local frost dates - last spring frost around Jan 9, first fall frost around Dec 25 - here is when to plant 79 common crops near ZIP 92506.

Last spring frost
Jan 9
First fall frost
Dec 25
Hardiness zone
10a

Vegetables

Crop Start seeds indoors Plant outside Fall planting by
Tomatoes Nov 28 Jan 16 (Transplant out) -
Peppers Nov 14 Jan 23 (Transplant out) -
Cucumbers Dec 19 Jan 16 (Transplant out) Oct 17
Zucchini Dec 19 Jan 16 (Transplant out) Oct 22
Summer Squash Dec 19 Jan 16 (Transplant out) Oct 20
Winter Squash Dec 19 Jan 16 (Transplant out) -
Pumpkins Dec 19 Jan 16 (Transplant out) -
Green Beans - Jan 9 (Direct sow) Oct 17
Sweet Corn - Jan 16 (Direct sow) -
Melons Dec 19 Jan 23 (Transplant out) -
Watermelon Dec 19 Jan 23 (Transplant out) -
Okra - Jan 23 (Direct sow) -
Eggplant Nov 14 Jan 23 (Transplant out) -
Lettuce Dec 12 Dec 12 (Transplant out) Oct 22
Spinach - Nov 28 (Direct sow) Oct 27
Kale Nov 28 Dec 19 (Transplant out) Oct 17
Peas - Nov 28 (Direct sow) Oct 12
Carrots - Dec 19 (Direct sow) Oct 2
Beets - Dec 12 (Direct sow) Oct 17
Radishes - Dec 12 (Direct sow) Nov 13
Broccoli Nov 28 Dec 26 (Transplant out) Oct 7
Cauliflower Nov 28 Dec 26 (Transplant out) Oct 2
Cabbage Nov 28 Dec 19 (Transplant out) Oct 2
Onions Oct 31 Dec 12 (Transplant out) -
Potatoes - Dec 26 (Direct sow) -
Swiss Chard Dec 12 Dec 26 (Transplant out) Oct 17
Sweet Potatoes - Jan 30 (Direct sow) -
Brussels Sprouts Nov 28 Dec 26 (Transplant out) Sep 2
Celery Oct 31 Jan 16 (Transplant out) -
Leeks Oct 31 Dec 26 (Transplant out) Aug 13
Turnips - Dec 26 (Direct sow) Oct 22
Rutabaga - Jan 9 (Direct sow) Sep 7
Parsnips - Dec 26 (Direct sow) Aug 13
Kohlrabi Dec 12 Dec 26 (Transplant out) Oct 17
Collard Greens Nov 28 Dec 26 (Transplant out) Oct 7
Mustard Greens - Dec 26 (Direct sow) Oct 27
Arugula - Dec 26 (Direct sow) Nov 1
Bok Choy Dec 12 Dec 26 (Transplant out) Oct 22
Green Onions - Dec 26 (Direct sow) Oct 12
Tomatillos Nov 28 Jan 16 (Transplant out) -
Fennel Dec 12 Dec 26 (Transplant out) Sep 22
Popcorn Jan 9 Jan 23 (Transplant out) -
Black-Eyed Peas Jan 9 Jan 23 (Transplant out) Sep 22
Lima Beans Jan 9 Jan 23 (Transplant out) -
Edamame Jan 9 Jan 23 (Transplant out) -
Peanuts Jan 9 Jan 23 (Transplant out) -
Globe Artichoke Nov 14 Dec 26 (Transplant out) Sep 12
Horseradish Jan 9 Dec 26 (Transplant out) -
Ground Cherries Nov 28 Jan 23 (Transplant out) -
Radicchio Dec 5 Dec 26 (Transplant out) Oct 2
Endive Dec 5 Dec 26 (Transplant out) Sep 12
Watercress Dec 19 Dec 26 (Transplant out) Oct 12
Sorrel Nov 28 Dec 19 (Transplant out) Oct 12
Sunchokes Jan 9 Dec 26 (Transplant out) -
Malabar Spinach Nov 28 Jan 23 (Transplant out) -
Amaranth Greens Dec 19 Jan 23 (Transplant out) Oct 27
Luffa Gourd Nov 28 Jan 23 (Transplant out) -
New Zealand Spinach Dec 12 Jan 23 (Transplant out) -
Fava Beans Jan 9 Dec 12 (Transplant out) Sep 17
Chayote Dec 12 Jan 23 (Transplant out) -
Corn Salad Jan 9 Dec 12 (Transplant out) Oct 12
Bitter Melon Dec 12 Jan 23 (Transplant out) -
Cardoon Nov 28 Jan 9 (Transplant out) -

Herbs

Crop Start seeds indoors Plant outside Fall planting by
Basil Nov 28 Jan 16 (Transplant out) -
Cilantro - Dec 26 (Direct sow) Oct 22
Parsley Nov 14 Jan 23 (Transplant out) Sep 27
Dill - Jan 16 (Direct sow) Oct 12
Lemon Balm Nov 28 Jan 9 (Transplant out) -
Borage Jan 9 Jan 9 (Transplant out) Oct 17
Chervil Jan 9 Dec 19 (Transplant out) Oct 17
Lemongrass Nov 14 Jan 23 (Transplant out) -
Summer Savory Nov 28 Jan 9 (Transplant out) -
Marjoram Nov 28 Jan 16 (Transplant out) -
Lovage Nov 28 Jan 9 (Transplant out) Sep 12
Anise Hyssop Nov 14 Jan 9 (Transplant out) -
Shiso Nov 28 Jan 16 (Transplant out) -
Stevia Nov 14 Jan 23 (Transplant out) -
Chamomile Nov 28 Dec 26 (Transplant out) Oct 7
Tarragon Jan 9 Jan 9 (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 Fire Stn 3, Ca, 1.7 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.

Full frost dates for 92506 Local weather →