Capsicum annuum / C. frutescens / C. chinense
Sunlight
Full sun — 6-8 hours minimum
Water
450-700 mm per crop. Consistent moisture during flowering and fruit set. Water stress causes flower and fruit drop.
Soil
Well-drained, fertile loam. pH 6.0-6.8. Rich in organic matter.
Temperature
Optimal 21-29°C. Fruit set fails below 15°C or above 35°C. Night temperatures of 15-20°C ideal.
Humidity
Moderate. High humidity promotes bacterial spot and anthracnose.
Season
Warm season — 60-90 days from transplant to first harvest (hot peppers), 70-80 days (sweet peppers).
Updated February 2026
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Overview
Peppers encompass both sweet peppers (bell peppers) and hot peppers (chili), essential to cuisines worldwide. They are among the most valuable vegetable crops, with hot peppers particularly important in African, Asian, and Latin American cooking. Hot peppers contain capsaicin, which provides the heat sensation and has medicinal properties. Ethiopia is the largest hot pepper producer in Africa. Peppers are rich in vitamins C and A — red bell peppers contain more vitamin C than any other common vegetable. The global pepper market exceeds $30 billion. Peppers are grown both in open fields and greenhouses, and are increasingly exported from African and Asian countries to European markets.
Plant Health
Pepper (Capsicum) is susceptible to 3 known diseases. Early detection is critical — use the CuraPlant app to scan leaves and get an instant AI diagnosis.
Pepper Bacterial Spot
Pepper bacterial spot (Xanthomonas euvesicatoria) causes small dark water-soaked leaf spots that turn brown with yellow halos, and raised scab-like fruit lesions. Spread by rain splash and seed. Manage with clean seed, copper + mancozeb sprays, resistant varieties, drip irrigation, and crop rotation. Copper resistance is increasing — rotate management tools.
Powdery Mildew
Powdery mildew appears as white powdery spots on leaves and stems, caused by Erysiphe or Podosphaera fungi. It thrives in warm, dry weather with high humidity. Manage with sulfur sprays, potassium bicarbonate, neem oil, proper spacing for airflow, and resistant varieties. Unlike most fungal diseases, it does NOT need wet leaves to infect.
Tomato Yellow Leaf Curl Virus
Tomato yellow leaf curl virus (TYLCV) is a begomovirus spread by whiteflies (Bemisia tabaci). Infected plants show upward leaf curling, yellowing leaf margins, stunted growth, and flower drop. There is no cure — management relies on resistant varieties, whitefly control with neem or imidacloprid, reflective mulches, and insect-proof netting.
Cultivation Guide
Start seeds indoors 8-10 weeks before transplanting
Transplant after last frost when soil temperature exceeds 18°C
Space at 60 × 45 cm for open field, 45 × 30 cm with staking
Stake or cage large-fruited varieties to prevent lodging
Mulch to maintain consistent soil moisture and suppress weeds
Harvest hot peppers at desired color stage — green (immature) or red (full ripe)
Companion Planting
Strategic companion planting reduces pest pressure, improves pollination, and can significantly increase yields.
Climate & Regions
Active climate zones for Pepper (Capsicum) are highlighted below.
Tropical
Suitable
Subtropical
Suitable
Temperate
Suitable
Mediterranean
Not typical
Highland
Not typical
Arid / Semi-arid
Not typical
Specific Zones & Regions
Common Questions
Pepper (Capsicum) grows best during the warm season — 60-90 days from transplant to first harvest (hot peppers), 70-80 days (sweet peppers).. It requires optimal 21-29°c. fruit set fails below 15°c or above 35°c. night temperatures of 15-20°c ideal. and full sun — 6-8 hours minimum. In tropical regions with consistent warmth, it can often be grown year-round with proper irrigation.
Pepper (Capsicum) is commonly affected by Pepper Bacterial Spot, Powdery Mildew, Tomato Leaf Curl Virus. Regular crop monitoring, good air circulation, avoiding overhead irrigation, and using disease-resistant varieties are the most effective prevention strategies.
Pepper (Capsicum) grows best in well-drained, fertile loam. ph 6.0-6.8. rich in organic matter.. For irrigation: 450-700 mm per crop. consistent moisture during flowering and fruit set. water stress causes flower and fruit drop.. Maintaining proper soil moisture without waterlogging is critical — Pepper (Capsicum) is sensitive to both drought stress and root rot from excess water.
Pepper (Capsicum) grows well alongside basil, carrot, tomato. These companions help repel pests, improve pollination, or provide ground cover. Avoid planting near fennel, which can inhibit growth or share susceptibility to the same pests and diseases.
CuraPlant
Scan any leaf with your phone and get an instant AI diagnosis, treatment guide, and prevention plan — even offline.
