Planting Calendar for ZIP 93408
Based on your local frost dates - last spring frost around Jan 16, first fall frost around Dec 25 - here is when to plant 79 common crops near ZIP 93408.
Last spring frost
Jan 16
First fall frost
Dec 25
Hardiness zone
10a
Vegetables
| Crop | Start seeds indoors | Plant outside | Fall planting by |
|---|---|---|---|
| Tomatoes | Dec 5 | Jan 23 (Transplant out) | - |
| Peppers | Nov 21 | Jan 30 (Transplant out) | - |
| Cucumbers | Dec 26 | Jan 23 (Transplant out) | Oct 17 |
| Zucchini | Dec 26 | Jan 23 (Transplant out) | Oct 22 |
| Summer Squash | Dec 26 | Jan 23 (Transplant out) | Oct 20 |
| Winter Squash | Dec 26 | Jan 23 (Transplant out) | - |
| Pumpkins | Dec 26 | Jan 23 (Transplant out) | - |
| Green Beans | - | Jan 16 (Direct sow) | Oct 17 |
| Sweet Corn | - | Jan 23 (Direct sow) | - |
| Melons | Dec 26 | Jan 30 (Transplant out) | - |
| Watermelon | Dec 26 | Jan 30 (Transplant out) | - |
| Okra | - | Jan 30 (Direct sow) | - |
| Eggplant | Nov 21 | Jan 30 (Transplant out) | - |
| Lettuce | Dec 19 | Dec 19 (Transplant out) | Oct 22 |
| Spinach | - | Dec 5 (Direct sow) | Oct 27 |
| Kale | Dec 5 | Dec 26 (Transplant out) | Oct 17 |
| Peas | - | Dec 5 (Direct sow) | Oct 12 |
| Carrots | - | Dec 26 (Direct sow) | Oct 2 |
| Beets | - | Dec 19 (Direct sow) | Oct 17 |
| Radishes | - | Dec 19 (Direct sow) | Nov 13 |
| Broccoli | Dec 5 | Jan 2 (Transplant out) | Oct 7 |
| Cauliflower | Dec 5 | Jan 2 (Transplant out) | Oct 2 |
| Cabbage | Dec 5 | Dec 26 (Transplant out) | Oct 2 |
| Onions | Nov 7 | Dec 19 (Transplant out) | - |
| Potatoes | - | Jan 2 (Direct sow) | - |
| Swiss Chard | Dec 19 | Jan 2 (Transplant out) | Oct 17 |
| Sweet Potatoes | - | Feb 6 (Direct sow) | - |
| Brussels Sprouts | Dec 5 | Jan 2 (Transplant out) | Sep 2 |
| Celery | Nov 7 | Jan 23 (Transplant out) | - |
| Leeks | Nov 7 | Jan 2 (Transplant out) | Aug 13 |
| Turnips | - | Jan 2 (Direct sow) | Oct 22 |
| Rutabaga | - | Jan 16 (Direct sow) | Sep 7 |
| Parsnips | - | Jan 2 (Direct sow) | Aug 13 |
| Kohlrabi | Dec 19 | Jan 2 (Transplant out) | Oct 17 |
| Collard Greens | Dec 5 | Jan 2 (Transplant out) | Oct 7 |
| Mustard Greens | - | Jan 2 (Direct sow) | Oct 27 |
| Arugula | - | Jan 2 (Direct sow) | Nov 1 |
| Bok Choy | Dec 19 | Jan 2 (Transplant out) | Oct 22 |
| Green Onions | - | Jan 2 (Direct sow) | Oct 12 |
| Tomatillos | Dec 5 | Jan 23 (Transplant out) | - |
| Fennel | Dec 19 | Jan 2 (Transplant out) | Sep 22 |
| Popcorn | Jan 16 | Jan 30 (Transplant out) | - |
| Black-Eyed Peas | Jan 16 | Jan 30 (Transplant out) | Sep 22 |
| Lima Beans | Jan 16 | Jan 30 (Transplant out) | - |
| Edamame | Jan 16 | Jan 30 (Transplant out) | - |
| Peanuts | Jan 16 | Jan 30 (Transplant out) | - |
| Globe Artichoke | Nov 21 | Jan 2 (Transplant out) | Sep 12 |
| Horseradish | Jan 16 | Jan 2 (Transplant out) | - |
| Ground Cherries | Dec 5 | Jan 30 (Transplant out) | - |
| Radicchio | Dec 12 | Jan 2 (Transplant out) | Oct 2 |
| Endive | Dec 12 | Jan 2 (Transplant out) | Sep 12 |
| Watercress | Dec 26 | Jan 2 (Transplant out) | Oct 12 |
| Sorrel | Dec 5 | Dec 26 (Transplant out) | Oct 12 |
| Sunchokes | Jan 16 | Jan 2 (Transplant out) | - |
| Malabar Spinach | Dec 5 | Jan 30 (Transplant out) | - |
| Amaranth Greens | Dec 26 | Jan 30 (Transplant out) | Oct 27 |
| Luffa Gourd | Dec 5 | Jan 30 (Transplant out) | - |
| New Zealand Spinach | Dec 19 | Jan 30 (Transplant out) | - |
| Fava Beans | Jan 16 | Dec 19 (Transplant out) | Sep 17 |
| Chayote | Dec 19 | Jan 30 (Transplant out) | - |
| Corn Salad | Jan 16 | Dec 19 (Transplant out) | Oct 12 |
| Bitter Melon | Dec 19 | Jan 30 (Transplant out) | - |
| Cardoon | Dec 5 | Jan 16 (Transplant out) | - |
Herbs
| Crop | Start seeds indoors | Plant outside | Fall planting by |
|---|---|---|---|
| Basil | Dec 5 | Jan 23 (Transplant out) | - |
| Cilantro | - | Jan 2 (Direct sow) | Oct 22 |
| Parsley | Nov 21 | Jan 30 (Transplant out) | Sep 27 |
| Dill | - | Jan 23 (Direct sow) | Oct 12 |
| Lemon Balm | Dec 5 | Jan 16 (Transplant out) | - |
| Borage | Jan 16 | Jan 16 (Transplant out) | Oct 17 |
| Chervil | Jan 16 | Dec 26 (Transplant out) | Oct 17 |
| Lemongrass | Nov 21 | Jan 30 (Transplant out) | - |
| Summer Savory | Dec 5 | Jan 16 (Transplant out) | - |
| Marjoram | Dec 5 | Jan 23 (Transplant out) | - |
| Lovage | Dec 5 | Jan 16 (Transplant out) | Sep 12 |
| Anise Hyssop | Nov 21 | Jan 16 (Transplant out) | - |
| Shiso | Dec 5 | Jan 23 (Transplant out) | - |
| Stevia | Nov 21 | Jan 30 (Transplant out) | - |
| Chamomile | Dec 5 | Jan 2 (Transplant out) | Oct 7 |
| Tarragon | Jan 16 | Jan 16 (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 San Luis Obispo Poly, Ca, 3.4 miles away. Averages for planning, not a forecast. Page updated Aug 4, 2026.