Yolo Wonder, Heirloom Sweet Pepper Seeds

Yolo Wonder — The Disease-Resistant Heirloom Bell Pepper From UC Davis

Yolo Wonder was bred with purpose. Developed at UC Davis in the 1950s as a direct improvement on Cal Wonder, this blocky heirloom bell pepper carries natural resistance to tobacco mosaic virus — a significant advantage for gardeners who have struggled with pepper disease in the past. The fruits are large, four-lobed, and thick-walled, ripening from a deep, glossy green to a rich, sweet red with the same satisfying crunch and clean flavor that made Cal Wonder famous.

For gardeners who want the classic bell pepper experience with added resilience, Yolo Wonder delivers — season after season, without compromise.

Why Grow Yolo Wonder?

• Tobacco mosaic virus resistant — bred for resilience in challenging garden conditions
• Large, four-lobed blocky fruits — thick-walled, ideal for stuffing and roasting
• Green to red ripening — harvest at either stage for different flavor profiles
• Classic heirloom flavor — clean, sweet, and satisfying
• UC Davis heritage — developed as a direct improvement on Cal Wonder
• Open-pollinated heirloom — save seed year after year

Growing Notes

Start indoors 8–10 weeks before last frost. Sow seeds ¼ inch deep in fertile, well-draining soil. Transplant outdoors after all frost danger has passed, spacing plants 18–24 inches apart in full sun. Water consistently and support heavy-fruiting plants with stakes. Harvest green at 75 days or allow to ripen fully to red at 90 days.

Packed and shipped by Box Garden Seeds LLC — heirloom seeds grown without GMOs, selected for flavor, resilience, and your garden’s success.