Keystone Resistant Giant, Sweet Pepper Seeds

Keystone Resistant Giant, Sweet Pepper Seeds — The Big, Bold Heirloom Bell

When size matters, Keystone Resistant Giant delivers. This classic heirloom bell pepper produces some of the largest fruits in the sweet pepper world — massive, four-lobed pods with thick, substantial walls and a clean, sweet flavor that improves with every day left on the vine. Developed for its natural resistance to tobacco mosaic virus, Keystone is the choice for gardeners who want maximum fruit size without sacrificing plant health or reliability.

Ripen from deep green to a rich, glossy red, these impressive fruits are the definitive stuffing pepper — large enough to hold a generous filling, thick-walled enough to hold their shape through roasting, and sweet enough to eat raw by the slice.

Why Grow Keystone Resistant Giant?

• Exceptionally large fruits — among the biggest bell peppers you can grow from seed
• Tobacco mosaic virus resistant — bred for resilience and reliable production
• Thick-walled, four-lobed pods — the definitive stuffing and roasting pepper
• Green to red ripening — harvest at either stage
• Open-pollinated heirloom — save seed year after year
• Non-GMO, USA-grown seeds

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 stake plants to support heavy fruit loads. Harvest green at 80 days or allow to ripen fully to red.

Days to maturity: 80 days (green), 95 days (red)
Packet size: ~25+ seeds
Heat level: None (0 SHU)
Type: Heirloom, Open-Pollinated
Disease resistance: Tobacco mosaic virus
Spacing: 18–24 inches
Origin: US
Sun: Full sun
USDA Zones: 3–12