Dining and Cooking
Meet the RB003: The blistering, ultra-gnarly Australian superhot heading into our high tunnels.
In Hot Peppers

Meet the RB003: The blistering, ultra-gnarly Australian superhot heading into our high tunnels.


We’re officially moving our RB003 crop into the high tunnels here in Tennessee for the season, and it's easily one of the most visually wicked peppers we work with.

Originally bred by Ross Barber out of Queensland, Australia (Yellow Reaper × Red Brainstrain), this variety is a masterclass in raw superhot traits. If you're a grower who appreciates intense pod morphology and serious heat, here is why it's worth a look:

  • The Pod Structure: It throws heavily blistered, contorted scorpion-style pods with prominent tail hooks. The surface texture alone lets you know exactly what you're dealing with.
  • The Interior: When you cut these open, the interior walls are completely coated in visible capsaicin oil pooling right on the placenta flesh.
  • The Heat & Flavor: It delivers a violent, fast-onset heat that sits firmly in the Reaper class, but it surprises you upfront with a remarkably clean, citrus-forward and floral profile that works beautifully for high-heat sauce blending.

We just put together a comprehensive variety guide on the farm blog breaking down its full lineage timeline, plant canopy habits, and our high-tunnel growth data for anyone wanting to see how it performs:

For those who have run Ross Barber's numbered lines before—how did the heat curve and pod stability compare to a standard standard Reaper or Scorpion in your garden? Let's talk shop!

by HarmonySpringsFarmTN

4 Comments

  1. Ok_Flow3504

    I vote that the name gets changed to the Mephisto Pepper because that looks evil

  2. Rustyjay13

    I grew these out last year and wishing I would’ve done em again. I have limited backyard space and decided to skip these this year. Had them growing right next to 7 pot primos and they easily out produced em. I wish I would’ve done more with em but got super busy towards end of summer last year and wasn’t able to do much with the peppers they produced and people did not want them haha. I work construction and dudes are were like hell no. 

  3. FakeChowNumNum1

    Had these last year and they had all of the heat of a reaper, but they were sweet and delicious. I don’t have them on my grow list this year, but I would if I had the room.