Regional guide

San Diego County Vegetable Planting Guide

UC ANR San Diego County guide for coastal and inland vegetable planting windows across warm/cool seasons and crop-row examples.

Regional timing

Current regional planting plan

UC ANR San Diego County guide for coastal and inland vegetable planting windows across warm/cool seasons and crop-row examples.

Source-backed timing UC Agriculture and Natural Resources San Diego County Vegetable Planting Guide

San Diego County 5 climate signals

Source source cues Local conditions

The San Diego County Vegetable Planting Guide is a one-page Warm and Cool Season Vegetables table by Vincent Lazaneo, Urban Horticulture Advisor Emeritus, UC Agriculture and Natural Resources.
The table separates Coastal Region and Coastal Inland Region planting windows rather than one countywide date.
Warm-season rows include snap beans Mid Mar - Aug coastal and Apr - Mid Aug inland, sweet corn Mid Mar - Jul coastal and Apr - Jul inland, cucumbers Mid Mar - Jul coastal and Apr - Jul inland, peppers Apr - Jul coastal and Apr - Jun inland, and tomato plants Mar - Jul coastal and Apr - Jun inland.

Catalog priority: 25 priority crops
Climate checks: 5 climate signals
Timing basis: Use regional source signals

Source-backed timing The San Diego County Vegetable Planting Guide is a one-page Warm and Cool Season Vegetables table by Vincent Lazaneo, Urban Horticulture Advisor Emeritus, UC Agriculture and Natural Resources.

The table separates Coastal Region and Coastal Inland Region planting windows rather than one countywide date.

Crop priority Provider Bush Bean leads the catalog examples

Provider Bush Bean, Detroit Dark Red Beet, Waltham 29 Broccoli, Golden Acre Cabbage

Next local check Use the coastal and inland columns before choosing a planting window; do not collapse this guide into a broad California schedule.

Keep the guide's plants versus seeds labels where they appear, including tomato plants, pepper plants, eggplant plants, broccoli plants, and broccoli seeds.

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. Ventura County UC ANR Ventura County guide for warm/cool-season vegetable planting dates, repeat rows, transplant rows, bed spacing, and crop examples.

Climate signals

The San Diego County Vegetable Planting Guide is a one-page Warm and Cool Season Vegetables table by Vincent Lazaneo, Urban Horticulture Advisor Emeritus, UC Agriculture and Natural Resources.
The table separates Coastal Region and Coastal Inland Region planting windows rather than one countywide date.
Warm-season rows include snap beans Mid Mar - Aug coastal and Apr - Mid Aug inland, sweet corn Mid Mar - Jul coastal and Apr - Jul inland, cucumbers Mid Mar - Jul coastal and Apr - Jul inland, peppers Apr - Jul coastal and Apr - Jun inland, and tomato plants Mar - Jul coastal and Apr - Jun inland.
Other warm-season rows include cantaloupe, melons, okra, winter squash, and watermelons Apr - Jun in both columns; eggplant plants run Apr - Jun coastal and Apr - Jun inland, and summer squash runs Mid Mar - Aug coastal and Apr - Jul inland.
Cool-season rows include beets Sept - May coastal and Sept - Mid Apr inland, broccoli plants Sept - Feb coastal and Sept - Feb inland, broccoli seeds Aug - Dec coastal and Aug - Oct inland, leaf lettuce Sept - Apr coastal and Sept - Mar inland, and peas Sept - Mar coastal and Jan - Mar inland.

Planning notes

Use the coastal and inland columns before choosing a planting window; do not collapse this guide into a broad California schedule.
Keep the guide's plants versus seeds labels where they appear, including tomato plants, pepper plants, eggplant plants, broccoli plants, and broccoli seeds.
Cool-season crop examples also include cabbage plants and seeds, carrots, cauliflower plants and seeds, chard, endive, kale, kohlrabi, head lettuce, onion green Sept - May coastal and Sept - Apr inland, radish Sept - May coastal and Sept - Mar inland, spinach, and turnips Sept - May coastal and Mid Sept - Apr inland.
Bulb onion, potatoes, and sweet potatoes are source rows without priority links; lima beans and summer squash are also left unlinked because the catalog lacks exact examples.
Treat lettuce, melon, green onion, and winter squash priority links as crop-level matches to the source rows.
Use priority catalog links as crop-row examples, 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.

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
Bright Lights Swiss Chard Vegetable · Shoulder · 55 days
Golden Bantam Sweet Corn Vegetable · Warm · 80 days
Marketmore 76 Cucumber Vegetable · Warm · 58 days
Black Beauty Eggplant Vegetable · Warm · 80 days
Green Curled Endive Vegetable · Cool · 85 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
Sugar Snap Pea Vegetable · Cool · 62 days
California Wonder Pepper Vegetable · Warm · 72 days
French Breakfast Radish Vegetable · Cool · 28 days
Bloomsdale Spinach Vegetable · Cool · 42 days
Waltham Butternut Squash Vegetable · Warm · 95 days
Roma Tomato Vegetable · Warm · 76 days
Purple Top White Globe Turnip Vegetable · Cool · 55 days
Sugar Baby Watermelon Vegetable · Warm · 80 days

Related regional guides

Ventura County Vegetable Planting Guide UC ANR Ventura County guide for warm/cool-season vegetable planting dates, repeat rows, transplant rows, bed spacing, and crop examples.
San Luis Obispo County Cool-Season Vegetable Guide UC SLO County guide for three cool-season bands, frost dates, heat and frost cautions, soil-temperature controls, and crop examples.
Orange County Small-Space Vegetable Garden UC Master Gardeners Orange County small-space guide for containers, sunlight, compacted urban yards, supports, and three-season turnover.

Source: UC Agriculture and Natural Resources San Diego County Vegetable Planting Guide