Carob, Ceratonia siliqua

Carob (Ceratonia is an evergreen tree or shrub native to the Mediterranean region. It belongs to the pea family (Fabaceae) and is known for its edible pods, which are often used as a chocolate substitute. Here’s a complete overview:

🌳 Basic Facts

Scientific Name: Ceratonia siliqua

Common Names: Carob, St. John's bread, locust bean

Family: Fabaceae (Legume family)

Origin: Mediterranean region

Lifespan: Long-lived (can exceed 100 years)

Height: Typically 30–50 feet (9–15 meters)

🌿 Description

Leaves: Pinnate, glossy, dark green, leathery; drought-resistant

Flowers: Small, red-brown, unisexual (male and female usually on separate trees)

Fruits: Thick, dark brown pods (4–12 inches), sweet pulp inside with hard seeds

🍬 Uses

Culinary:

Carob powder (dried, roasted, and ground pods) as a caffeine-free cocoa substitute

Carob chips in baking

Carob syrup and molasses

Industrial:

Locust bean gum (from seeds) used as a thickener/stabilizer in food processing

Animal feed: Whole pods fed to livestock

Traditional medicine: Used for digestive issues

🌱 Growing Conditions

Climate: Hot, dry summers; mild winters (USDA Zones 9–11)

Soil: Well-drained, poor or rocky soils; tolerates drought and salinity

Sunlight: Full sun

Water: Drought-tolerant but benefits from occasional deep watering

🐝 Ecology

Pollination: Often pollinated by wind or insects

Wildlife: Provides habitat and food for birds and insects

Nitrogen-fixing? No — unlike many legumes, carob does not fix nitrogen

🌍 Interesting Facts

Each carob seed is nearly identical in weight, once used as a unit of measure for gold (the origin of the word “carat”).

The pods have been eaten since ancient times; some legends say John the Baptist survived on carob pods.