About this variety
The name is a portmanteau: 7 Pot Primo crossed with Fatalii, made by Chris Saunders around 2012. What it inherited is the stinger. Primotalii pods carry a needle-thin tail an inch or more long, often curled, far finer than the Reaper's hook, on a slim wrinkled body of two to three inches with skin that looks like it is boiling.
The flavour is the best thing about it. Bright grapefruit and lemon citrus over something floral and faintly earthy, sweet for about a second and a half before the heat takes the room. Grower estimates put it between 1.6 and 2.2 million Scoville units, which would place it among the hottest chillies in existence, though no laboratory has published a figure for it.
The yield is the catch, and it is a real one. Growers consistently report fewer pods than from a Carolina Reaper or a straight 7 Pot Primo, and the pods themselves are thin-walled and light, so the total harvest weight is small. It also dislikes wet feet and is prone to fungal trouble. Sow in January, grow under glass, wear gloves, and do not plan a year of sauce around it.