When to Plant Swiss Chard in Rio Oso, California (95674)
Location
Rio Oso, California
ZIP Code
95674
USDA Zone
9b
Last Frost
Wednesday, February 10, 2027
📅 Planting Calendar
Direct Sow Outdoors Wednesday, December 30, 2026
Pro Tip: Swiss Chard can be directly sown outdoors. Plant 6 weeks before your last frost date.
🌿 Plant Details
Scientific Name Beta vulgaris
Days to Maturity 280 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 1-7 days
Other Plants for Rio Oso
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 Corn Sweet Potato Tomato Turnip Watermelon Zucchini
Growing Swiss Chard in Zone 9b
Swiss Chard (Beta vulgaris ) is a popular garden vegetable. In Rio Oso, California, which is in USDA Hardiness Zone 9b, you should direct sow seeds around Wednesday, December 30, 2026.
Your average last frost date is Wednesday, February 10, 2027. Swiss Chard grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.