Trinidad Scorpion / Trinidad Moruga Scorpion (Capsicum chinense) growing guide

Quick facts

Category: fruiting
Difficulty: intermediate
Days to harvest: 100 to 120 days
Harvest type: continuous production over weeks or months
Spacing: 60 cm between plants

Environment

Temperature: 22–32°C
pH: 5.8 to 6.8
EC (hydroponic): 2 to 3 mS/cm
Daily light: 25 to 35 mol/m²/day (strict, will fail outside this range)

Climate and zones

USDA zones: 9 to 13 (winter low around -7°C or warmer)
Frost tolerance: frost sensitive (dies at first frost)
Season: warm (summer crops, frost-sensitive)

Viable growing environments:

outdoor in growing season (annual)
unheated greenhouse / hoop house
heated greenhouse
indoor (heated home)
indoor hydroponics under grow lights

USDA zone bounds reflect outdoor year-round survival. Anywhere outside the bounded zone range, this crop still grows as an annual in the warm months (outdoor_seasonal), under cover (greenhouse), or indoors under lights.

Growing systems

Trinidad Scorpion works in:

drip / Dutch buckets
media bed (ebb and flow)
soil bed

Growing media

The substrate the roots sit in. Choice depends on the system (clay pebbles don't fit NFT channels; rockwool isn't used in media beds) and the crop (trinidad scorpion works in the media listed below).

Medium	pH effect	Water retention	Bacterial surface
Expanded clay pebbles (LECA)	neutral / inert	low	high
Coco coir (Coconut coir)	slightly acidic	high	moderate
Perlite (Expanded volcanic glass)	neutral / inert	very low	low
Rockwool (Mineral wool)	alkaline until pre-soaked	very high	low
Soil-based mix (Potting soil)	varies by source	high	high

Bacterial surface area matters for aquaponics: clay pebbles, lava rock, and pumice double as biofilter substrate. Low-surface media (rockwool, perlite, pea gravel) work in hydroponics but need a separate biofilter in aquaponics.

Nutrient demand by stage

NPK ratios are relative weights at each growth stage; the nutrient mix calculator scales them to absolute grams or ml. EC targets shift through the plant's life: seedlings need a much lighter solution than fruiting adults.

Stage	N	P	K	EC target (mS/cm)
seedling	2	1	1	1.2
vegetative	3	1	2	2
flowering	1	2	3	2.6
fruiting	1	2	3	2.8

Companion-growing notes

Heavy uptake of potassium, calcium. Co-grown crops with the same demand will end up deficient even at "correct" EC. Plan around this in shared reservoirs.

Aquaponics suitability

Compatible with typical aquaponics nutrient profiles. Fish waste provides enough nitrogen for healthy growth; supplemental potassium, calcium, and iron may still be needed depending on fish stocking density.

Care notes

Culture is standard for C. chinense superhots (see habanero, ghost pepper entries). EC 2.0-3.5 mS/cm. pH 5.5-6.5. Temperature: 24–32°C. Very high light (DLI 20-28 mol/m2/day). Long season: 100-130 days. Plants are medium to large (60–100 cm). Each plant produces 20-40 fruits. Handle with nitrile gloves; at 2+ million SHU, the capsaicin concentration is extreme enough to cause chemical burns on skin and severe respiratory irritation from fumes. The primary use is hot sauce: blend with vinegar, garlic, and tropical fruit for a sauce that delivers both extreme heat and the characteristic C. chinense fruitiness. Dried and ground Trinidad Scorpion powder is used as a heat additive in extreme hot sauces and spice challenges. A single plant produces more heat than most people can consume in a year.

Notable varieties

A starting shortlist of cultivars worth knowing about. Not exhaustive: the seed catalogs list hundreds of named varieties. These are the ones home growers commonly choose between.

Cultivar	Type	Breeder / origin	Days	Notes
Trinidad Moruga Scorpion	open-pollinated		110	From the Moruga region of Trinidad, the variant that briefly held the Guinness record in 2012. Average 1.2 million Scoville, peak tests 2 million. Red, walnut-sized.
Trinidad Scorpion Butch T	open-pollinated	Butch Taylor	105	Stable named strain, held the world record briefly before Moruga. 1.4 million Scoville average.
Yellow Trinidad Scorpion	open-pollinated		110	Yellow at ripeness, slightly milder than red (still 800,000+ Scoville), brighter citrus note. Hobby variety.
Chocolate Trinidad Scorpion	open-pollinated		115	Dark brown at ripeness, sometimes called '7 Pot Douglah' depending on strain. Among the hottest peppers in average testing (1.85 million Scoville).