When to Plant Sweet Corn in Spring Valley, California (91978)
Location
Spring Valley, California
ZIP Code
91978
USDA Zone
10b
Last Frost
Friday, January 15, 2027
📅 Planting Calendar
Direct Sow Outdoors Friday, December 4, 2026
Pro Tip: Sweet Corn can be directly sown outdoors. Plant 6 weeks before your last frost date.
🌿 Plant Details
Scientific Name Zea mays
Days to Maturity 7 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 1-7 days
Other Plants for Spring Valley
Blackberry Blueberry Raspberry Strawberry Basil Chamomile Chives Cilantro Dill Lavender Lemon Balm Marjoram Mint Oregano Parsley Rosemary Sage Tarragon Thyme Acorn Squash Artichoke Arugula Asparagus Beefsteak Tomato Beet Bell Pepper Bok Choy Broccoli Brussel Sprout Butternut Squash Cabbage Cantaloupe Carrot Cauliflower Cayenne Pepper Celery Cherry Tomato Chili Pepper Collard Green Common Bean Cucumber Eggplant Endive Fennel Garlic Grape Tomato Green Bean Habanero Pepper Head Lettuce Heirloom Tomato Honeydew Melon Jalapeño Pepper Kale Kohlrabi Leaf Lettuce Leek Lima Bean Mustard Okra Onion Parsnip Pea Poblano Pepper Pole Pea Potato Pumpkin Radicchio Radish Rhubarb Roma Tomato Rutabaga Serrano Pepper Shallot Snap Pea Snow Pea Spaghetti Squash Spinach Squash Sweet Potato Swiss Chard Tomato Turnip Watermelon Zucchini
Growing Sweet Corn in Zone 10b
Sweet Corn (Zea mays) is a popular garden vegetable. In Spring Valley, California, which is in USDA Hardiness Zone 10b, you should direct sow seeds around Friday, December 4, 2026.
Your average last frost date is Friday, January 15, 2027. Sweet Corn grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.