How to germinate Coriandrum sativum

Coriandrum sativum is a fast-growing annual herb in the Apiaceae family with aromatic leaves (cilantro) and seeds (coriander). Native to regions spanning southern Europe and northern Africa to southwestern Asia, it is now cultivated worldwide for culinary and medicinal uses.

Before sowing

Scarification

mecanica Mechanical scarification of seed coat enhances germination; seeds can be crushed or rubbed to break dormancy

Soak

12 h Soaking seeds in water for 12 hours improves germination; some sources recommend 24 hours

Scarification or soaking recommended to overcome seed coat dormancy; leaching can improve germination

Sowing

Substrate

well-draining seed compost or sandy loam

Depth

0_5cm

Temperature

25°C

Moisture

media

Container

seed trays, pots, containers with depth minimum 15cm for taproot

Day/night swing

Alternating temperature 20-30°C may be used; optimal constant temperature is approximately 24.83°C

What to expect

Step 1

Pre-treat the seed

Step 2

Sow at 0_5cm · 25°C

Day 7–21

Seedlings emerge (~75%)

Tips

Crushing seeds before sowing significantly speeds germination. Plant in cool season to prevent bolting. Direct sowing preferred over transplanting due to sensitive taproot. Succession sowing every 2-3 weeks provides continuous harvest. Germination can be slow and erratic without pre-treatment.

Sources: Scientific research on cardinal temperatures, seed priming studies, ISTA Rules, University extension guides, and horticultural publications

Fresh seeds to sow

Coriandrum sativum

Before sowing

Sowing

What to expect

Tips

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