When to Plant Turnip in Saint John, North Dakota (58369)
Location
Saint John, North Dakota
ZIP Code
58369
USDA Zone
3b
Last Frost
Wednesday, May 20, 2026
📅 Planting Calendar
Direct Sow Outdoors Wednesday, April 8, 2026
Pro Tip: Turnip can be directly sown outdoors. Plant 6 weeks before your last frost date.
🌿 Plant Details
Scientific Name Brassica rapa
Days to Maturity 91 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 1-7 days
Other Plants for Saint John
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 Swiss Chard Tomato Watermelon Zucchini
Growing Turnip in Zone 3b
Turnip (Brassica rapa) is a popular garden vegetable. In Saint John, North Dakota, which is in USDA Hardiness Zone 3b, you should direct sow seeds around Wednesday, April 8, 2026.
Your average last frost date is Wednesday, May 20, 2026. Turnip grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.