The source says California growing areas are large, so planting dates are only approximate and climate can vary even in small sections.
Regional guide
California Interior Valley Vegetable Planting Guide
UC Master Gardener guide for Sacramento and San Joaquin Interior Valley timing, temperature bands, frost checks, and crop rows.
Regional timing
Current regional planting plan
UC Master Gardener guide for Sacramento and San Joaquin Interior Valley timing, temperature bands, frost checks, and crop rows.
Source-backed timing
UC Master Gardener Program Time of planting
California Interior Valley
6 climate signals
Source
source cues
Local
conditions
- UC Master Gardener says average seasonal temperatures are the most important factor in determining planting times.
- The source says California growing areas are large, so planting dates are only approximate and climate can vary even in small sections.
- The Interior Valleys column applies to Sacramento, San Joaquin, and similar valleys.
- Catalog priority
- 25 priority crops 25 catalog examples
- Climate checks
- 6 climate signals 6 planning notes
- Timing basis
- Use regional source signals source guidance first
Green Globe Artichoke, Provider Bush Bean, Detroit Dark Red Beet, Waltham 29 Broccoli
Planting dates are for seed unless otherwise noted; asterisks mark rows where transplants, shoots, or roots are used for field planting.
Calendar
Convert regional timing into dated sowing, transplant, and harvest jobs.
Frost dates
Keep hardiness zone context separate from local first and last frost dates.
All regions
Compare this guide with the broader regional atlas.
Placer County
UC Placer County guide for elevation-adjusted frost dates, warm/cool crop windows, and crop-row examples.
Climate signals
- UC Master Gardener says average seasonal temperatures are the most important factor in determining planting times.
- The source says California growing areas are large, so planting dates are only approximate and climate can vary even in small sections.
- The Interior Valleys column applies to Sacramento, San Joaquin, and similar valleys.
- Cool-season crops grow best when average temperatures range from 55 F to 75 F and tolerate slight frosts.
- Warm-season crops grow best when average temperatures range from 65 F to 95 F.
- Use local first and last frost dates, and start seed indoors 6-8 weeks before the outdoor planting time if using transplants.
Planning notes
- Use the Interior Valleys column in the UC table instead of copying South Coast or Desert Valley dates.
- Planting dates are for seed unless otherwise noted; asterisks mark rows where transplants, shoots, or roots are used for field planting.
- Interior Valley cool-season rows include artichoke July; beets Feb-April and Aug; broccoli Dec-Feb and July; cabbage July and Feb; carrots Aug-Sept and Feb-April; cauliflower July-Aug; celery June-Aug; kale Aug-Sept; kohlrabi Aug; lettuce Aug and Nov-March; bulb onions Oct-Nov and Jan-March; green onions Aug-Dec; parsley Dec-May; parsnips May-July; and spinach Sept-Jan.
- Interior Valley warm-season rows include snap beans April-May and July-Aug; cantaloupes and other melons April-June; chayote May-June; sweet corn March-July and Aug; cucumbers April-July; eggplant April-May; okra May; peppers May; sweet potatoes Apr-Jun; pumpkins April-June; summer squash April-July; winter squash April-June; tomatoes April-May; and watermelons April-June.
- Garlic uses an Oct-Dec Interior Valley row, white potatoes use Feb-Mar and Aug rows, and rhubarb uses a Dec-Feb row, but there are no matching catalog seed links yet.
- Use these priority catalog links as crop-row examples only, not UC cultivar recommendations.
Catalog crop examples
These catalog entries match crops covered by the regional timing source; variety-specific details remain tied to each seed entry's own source.
- Green Globe Artichoke Vegetable · Warm · 120 days
- Provider Bush Bean Vegetable · Warm · 50 days
- Detroit Dark Red Beet Vegetable · Cool · 58 days
- Waltham 29 Broccoli Vegetable · Cool · 74 days
- Golden Acre Cabbage Vegetable · Cool · 64 days
- Danvers 126 Carrot Vegetable · Shoulder · 70 days
- Snowball Y Cauliflower Vegetable · Cool · 70 days
- Tall Utah Celery Vegetable · Cool · 110 days
- Golden Bantam Sweet Corn Vegetable · Warm · 80 days
- Marketmore 76 Cucumber Vegetable · Warm · 58 days
- Black Beauty Eggplant Vegetable · Warm · 80 days
- Lacinato Kale Vegetable · Cool · 60 days
- Early White Vienna Kohlrabi Vegetable · Cool · 55 days
- Black Seeded Simpson Lettuce Vegetable · Cool · 45 days
- Hale's Best Jumbo Melon Vegetable · Warm · 85 days
- Clemson Spineless Okra Vegetable · Warm · 56 days
- Evergreen Bunching Onion Vegetable · Shoulder · 65 days
- Italian Flat Leaf Parsley Herb · Shoulder · 75 days
- Hollow Crown Parsnip Vegetable · Cool · 120 days
- California Wonder Pepper Vegetable · Warm · 72 days
- Small Sugar Pumpkin Vegetable · Warm · 100 days
- Bloomsdale Spinach Vegetable · Cool · 42 days
- Waltham Butternut Squash Vegetable · Warm · 95 days
- Roma Tomato Vegetable · Warm · 76 days
- Sugar Baby Watermelon Vegetable · Warm · 80 days
Related regional guides
- Placer County Elevation-Frost Vegetable Planting Guide UC Placer County guide for elevation-adjusted frost dates, warm/cool crop windows, and crop-row examples.
- Tulare/Kings San Joaquin Valley Vegetable Guide UC Master Gardener Tulare/Kings guide for San Joaquin Valley vegetable rows, protected starts, fall pest pressure, and crop examples.
- Sacramento Area Vegetable Planting Schedule UC Master Gardeners Sacramento guide for EHN 11 month-grid seed, transplant, and protected-start vegetable timing.
- Yolo County Spring Warm-Season Vegetable Guide UC ANR Savvy Sage guide for Yolo County April warm-season transition rows, soil-warmth cautions, and crop-row examples.
- Shasta County Valley Monthly Planting Guide UC ANR monthly guide for Shasta County valley areas covering protected starts, direct outside seed rows, and starter-plant timing.
- Butte County Foothill Planting Guide UC Master Gardeners Butte County foothill vegetable guide for elevation-adjusted frost timing and crop-row planning.