Coriander

Coriandrum sativumApiaceae

HerbOpen-PollinatedSlo-Bolt
Coriander

🌱 Seed Category

Herb

🌍 Origin Region

Southern Europe, Northern Africa, and Southwestern Asia

📅 Days to Maturity

45-55 days for leaf harvest (Cilantro); 90-120 days for seed harvest (Coriander).

🌡️ Hardiness Zones

USDA Zones 3-11. Grown as an annual in most climates, though it can survive light frosts.

About This Seed

Small, spherical, ribbed seeds approximately 3-5mm in diameter, light brown to tan in color. The plant grows as a leafy herb (Cilantro) before producing lacy white flowers and round seed heads.

Growing Information

Growing Season

Cool season; Spring/Fall. Best direct-seeded as it has a taproot. Frost tolerant once established.

Germination

7-14 days at 60-70°F (15-21°C). Light is not required for germination. Cracking seeds gently before planting can improve rates.

Planting Instructions

Plant 1/4 to 1/2 inch deep. Space 2-6 inches apart in rows 12-18 inches apart. Prefers well-drained, sandy loam soil with pH 6.2-6.8.

Sunlight & Water Needs

Full sun to partial shade (partial shade helps prevent bolting). Consistent moisture is required; do not allow soil to dry out completely.

Companion Plants

Grows well with Dill, Anise, and Spinach. Avoid planting near Fennel as they can cross-pollinate or inhibit growth.

Special Characteristics

Pollinator-friendly flowers attract hoverflies and predatory wasps. Seeds have citrusy, warm culinary uses. Known to bolt quickly in high heat.

Identified on 2/24/2026