Photo: "Thai Peppers" by VasenkaPhotography
· CC BY 2.0
Pepper · Hot-compact
Thai Hot Peppers
Open-pollinated · Solanaceae
Most compact and prolific pepper in the entire SoilStack catalog. 8-18 inches tall, 100-200+ tiny upright fruit per plant. Genuine ornamental appeal with green-to-red ripening. 50,000-100,000 SHU (10-23× jalapeño). Essential in Thai, Vietnamese, and Indian cuisines. Top recommendation for apartments, patios, and windowsills. Thrives in 1-3 gallon pots. Open-pollinated.
At a Glance
Days to Maturity
75–85 days
Sun
6+ hours
8+ hours
Spacing
12–18 "
Seed Start
8–10 weeks
before transplant
Container
Yes
1+ gallon pot
Height
0.7–1.5 ft
Zone Planting Guide
Growing Guide
Germination
Germination Time7–21 days
Optimal Temp85°F
Seed Depth0.25"
Transplanting
Min Soil Temp65°F
Harden Off10 days
Watering
Weekly Water1–1.5 "
NeedsConsistent
MethodDrip or base watering. Container plants need more frequent watering.
Soil
pH Range6–6.8
Soil TypeWell-draining potting mix
Resilience
Heat: Moderate-highCold: Very-lowDrought: Medium
Common Problems
blossom-drop
Cause: Standard pepper thresholds.
Prevention: Container mobility helps — move to shade during heat waves.
Nutrition
Feeding IntensityModerate feeder
Recommended RecipesRoot drench
Harvest
Green or red, 0.5-1.5 inches, upright, 0.1-0.3 oz. Green = bright heat. Red = deeper, slightly hotter.
Expected Yield0.5–2 lbs/plant
Storage
14 days — Crisper drawer. Long shelf life for size.
Companion Planting
Good Companions
Genovese basilRepels aphids — Thai basil + Thai pepper is a natural pairing
Planting dates for Thai Hot Peppers vary by USDA hardiness zone. Select your zone below for frost dates, start-indoors timing, and a full monthly planting calendar.
