Serrano Pepper (Capsicum annuum 'Serrano')

Serrano Pepper

Capsicum annuum 'Serrano'

Fiery, compact fruit packs bold heat for culinary use. Edible fruiting herbaceous perennial; common name: Serrano Pepper.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun (6–8 hours of direct daily light) for optimal fruiting; tolerates partial shade with reduced fruit production.
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Watering Water deeply when the top 2–3 cm of soil is dry; avoid overwatering to prevent root rot and blossom end rot.
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Temperature Thrives in 20–28°C; sensitive to frost, move indoor or protect when temperatures drop below 12°C.
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Characteristics

  • Leaf: Simple, ovate to lanceolate, glossy green, 5–10 cm long with smooth margins.
  • Flower: Small, star-shaped, white, 1–2 cm wide, solitary or in clusters of 2–3.
  • Fruit: Slender cylindrical pods, 5–10 cm long, green ripening to red or yellow, with intense pungency.
  • Stem: Erect, branching, green to woody at the base as plants mature.
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Care Guide

Watering

Keep soil consistently moist but not waterlogged to support fruiting

Fertilization

Feed every 2 weeks with balanced liquid fertilizer. Stop fertilizing once fruiting slows in late summer to avoid excessive foliage growth.

Eggshell powder topdress:Crush dried eggshells into fine powder; sprinkle 1 tbsp around the base of plants monthly and water in thoroughly to release calcium.
Pruning
  • Pinch back young seedlings to encourage bushy growth and more fruiting branches.
  • Remove yellowing leaves and spent flowers to improve air circulation and reduce disease risk.
  • Trim overcrowded mid-season branches to increase light penetration to developing fruit clusters.
  • Harvest ripe fruit regularly to stimulate continued production throughout the growing season.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; contains capsaicinoids that cause oral and gastrointestinal irritation.

Humans: Mild irritation to mucous membranes or skin from capsaicin; edible in moderate quantities when ripe.

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Garden Uses & Culture

Culture: Associated with Mexican and Latin American culinary traditions; symbolizes bold flavor and cultural heritage.

Usage: Culinary use in salsas, hot sauces, and fresh dishes; ornamental fruiting container plant.