When to Plant Squash in San Luis Obispo, California (93408)
Location
San Luis Obispo, California
ZIP Code
93408
USDA Zone
10a
Last Frost
Monday, January 25, 2027
📅 Planting Calendar
Direct Sow Outdoors Monday, December 14, 2026
Pro Tip: Squash can be directly sown outdoors. Plant 6 weeks before your last frost date.
🌿 Plant Details
Scientific Name Cucurbita moschata
Days to Maturity 90 days
Mature Height 24-36"
Spread 72"
Type Vine
Fruit Size Large (2-5 lbs)
☀️ Growing Requirements
☀️
Sun
Full Sun (6-8 hours)
💧
Water
Regular (1 inch/week)
↔️
Spacing
48" apart
🌱
Planting Depth
1" deep
Seeds typically germinate in 7-14 days
🤝 Good Companions
CornBeanRadishMarigold
⚠️ Avoid Planting Near
Potato
Other Plants for San Luis Obispo
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 Sweet Corn Sweet Potato Swiss Chard Tomato Turnip Watermelon Zucchini
Growing Squash in Zone 10a
Squash (Cucurbita moschata) is a popular garden vegetable. In San Luis Obispo, California, which is in USDA Hardiness Zone 10a, you should direct sow seeds around Monday, December 14, 2026.
Your average last frost date is Monday, January 25, 2027. Squash grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.