Meet the RB003 pepper seeds, one of the fiercest and most fascinating hybrids to ever hit the superhot world. This rare cross — bred by pepper legend Ross Barber — combines the searing heat of the Yellow Carolina Reaper with the bumpy, brainy texture of the Red Brainstrain. The result? A fiery masterpiece that doesn’t just burn… it boils over with flavor.
At Harmony Springs Farm, we’ve grown and tested RB003 in our high tunnel under Tennessee’s unpredictable seasons. The plants grow strong and upright, loaded with gnarly pods that start green, ripen to deep red, and carry that signature Reaper punch with Brainstrain complexity. If you’re chasing a high-yielding, stable F3-F4 cross that’s already earning a name among growers, these RB003 pepper seeds are your ticket.
Expect flavor as fierce as the heat: fruity up front, with that sharp, lingering sting that superhot fans crave. Perfect for making hot sauce, powder, or for bragging rights in your next pepper challenge.
Each packet contains 10+ farm-proven RB003 pepper seeds, carefully selected and dried on-site at Harmony Springs Farm. We don’t buy bulk seed or mix varieties — these are grown, tested, and harvested by real farmers who live and breathe peppers.