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.

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