Big Rainbow Tomato, Organic, 1990 Polk County, Minnesota

The Big Rainbow is a true success story of the Seed Savers Exchange. It was brought to national attention by Dorothy Beiswenger of Fisher, Minnesota (Polk County).

Dorothy was a legendary seed saver who shared this variety with the Seed Savers Exchange in 1983. Despite the shorter growing seasons of Northern Minnesota, this variety thrived, proving that with enough sun and care, you can produce world-class, giant tomatoes anywhere. By growing Big Rainbow, you are continuing a legacy of Midwestern horticultural preservation.

• Heirloom & Open-Pollinated: A stable variety that has been passed down through generations.
• Bicolor Beauty: The fruit features a spectacular "sunset" pattern—bright yellow and gold skin with vivid red streaks radiating from the blossom end.
• Massive Beefsteak: These are heavy hitters, often weighing between 1 to 2 pounds each.
• Indeterminate Growth: The vines are vigorous and will continue to produce fruit throughout the season until the first frost.

The Big Rainbow is often described as the "dessert" of tomatoes due to its high sugar content and low acidity.

Because of its size and stunning interior marbling, this tomato is meant to be the star of the show:

1. The Ultimate Slicer: Slice it thick to reveal the "rainbow" inside. It’s perfect for impressive Caprese salads or gourmet platters.
2. Show-Stopping Sandwiches: One slice is often large enough to cover an entire piece of sourdough bread.
3. Fresh Salsas: Its sweetness pairs beautifully with lime and cilantro for a mild, golden salsa.
4. Bright Garnishes: Use it to add a pop of yellow and red to any dish without the harsh bite of high-acid varieties.

• Days to Maturity: 80–90 days (A late-season beauty).
• Plant Type: Indeterminate (Requires sturdy staking or caging).
• Sun Requirements: Full Sun.
• Fruit Size: 12–24+ oz.

Gardener's Tip: Because these fruits are so heavy, ensure your support system (cages or trellises) is extra strong. To prevent cracking, maintain consistent watering as the large fruits approach maturity.