Scotch bonnet / Bonney pepper (Capsicum chinense) growing guide

Quick facts

Category: fruiting
Difficulty: intermediate
Days to harvest: 90 to 110 days
Harvest type: continuous production over weeks or months
Spacing: 60 cm between plants

Environment

Temperature: 21–32°C
pH: 5.8 to 6.8
EC (hydroponic): 2 to 3 mS/cm
Daily light: 22 to 32 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

Scotch bonnet 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 (scotch bonnet 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	2.4
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 identical to habanero. EC 2.0-3.0 mS/cm. pH 5.5-6.5. Temperature: 24–32°C (C. chinense; needs sustained warmth). High light (DLI 18-28 mol/m2/day). Plants are compact to medium (40–70 cm). Long season: 90-120 days from transplant to ripe fruit. Each plant produces 30-60 fruits. Harvest fully colored. Handle with gloves. For jerk seasoning: blend Scotch bonnets with allspice, thyme, green onion, garlic, ginger, soy sauce, lime juice, and brown sugar. The resulting paste is the marinade for jerk chicken and pork. For Caribbean pepper sauce: blend ripe Scotch bonnets with mustard, vinegar, garlic, and salt. The fruity chinense flavor is what makes Caribbean pepper sauce taste Caribbean rather than generically hot. Plants are perennial in warm conditions. Seeds available from Caribbean seed suppliers and mainstream pepper seed companies.

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	Days	Notes
Yellow Scotch Bonnet	open-pollinated	95	The classic Jamaican variety. Bright yellow at ripeness, 100,000-250,000 Scoville, intense apricot-mango aroma. The pepper Walkerswood and Grace use.
Red Scotch Bonnet (TFM)	open-pollinated	100	'Trinidadian Foodie Market' strain, deep red, slightly hotter than yellow. The variety used in many Trinidadian pepper sauces.
Chocolate Scotch Bonnet	open-pollinated	105	Dark brown at ripeness, slower-cycling. Slightly hotter and more complex than yellow; growers compare the flavor to dried apricots.
MOA Scotch Bonnet	open-pollinated	95	'Ministry of Agriculture' Jamaican government-released stable strain. Reliable yields, classic flavor, the workhorse commercial variety.