When to Plant Rhubarb in Zone 13A

USDA Zone

13A

Cities Covered

Avg Last Frost

Friday, January 1, 2027

Plant Type

Indoor Start

📅 Planting Calendar for Zone 13A

Start Seeds Indoors Friday, November 6, 2026

Transplant Outdoors Friday, January 15, 2027

Pro Tip: Start Rhubarb seeds indoors 8 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Rheum rhabarbarum

Days to Maturity 7 days

Sun Requirements Full Sun

Cities in Zone 13A

Keauhou, Hawaii M C B H Kaneohe Bay, Hawaii

Other Plants for Zone 13A

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 Roma Tomato Rutabaga Serrano Pepper Shallot Snap Pea Snow Pea Spaghetti Squash Spinach Squash Sweet Corn Sweet Potato Swiss Chard Tomato Turnip Watermelon Zucchini

Growing Rhubarb in USDA Zone 13A

Rhubarb (Rheum rhabarbarum) grows well in USDA Hardiness Zone 13A. This zone includes cities like Keauhou, M C B H Kaneohe Bay.

The average last frost date for Zone 13A is around Friday, January 1, 2027. For best results, start your Rhubarb seeds indoors around Friday, November 6, 2026, then transplant outdoors around Friday, January 15, 2027.