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Coriandrum sativum /kɔ.riˈan.drũː/

Common name: Cilantro · Coriander

Coriandrum sativum is a fast-growing annual herb in the carrot family, Apiaceae, native to southern Europe and North Africa. Its fresh leaves (cilantro) and dried seeds (coriander) are both widely used in cooking. It bolts quickly in warm weather, flowering and setting seed within weeks.

Care summary

Sun Full sun to partial shade
Water Regular; keep soil evenly moist
Soil Rich, moist, well-draining
Hardiness Grown as annual in all zones
Mature height 0.3–0.6 m (1–2 ft)
Pet safe Non-toxic to cats and dogs
Difficulty Moderate
Propagation Grown from seed sown directly where it is to grow, as it resents transplanting. Sow 1 cm deep in moist, well-draining soil, keep consistently damp, and thin seedlings to about 15 cm apart; sow small batches every few weeks for a continuous supply.

Fun facts

  • The leaves are called cilantro and the dried seeds are called coriander — two spices from one plant.
  • Some people perceive cilantro as tasting like soap, a trait linked to the OR6A2 gene.
  • Cilantro bolts (flowers) quickly in heat, so it is often sown in succession for a steady harvest.
  • Coriander seeds have been found in ancient Egyptian tombs, including Tutankhamun's.

Common problems

    • Sow successionally every few weeks
    • Grow in light shade during summer
    • Choose slow-bolting varieties for summer
    • Wash aphids off with soapy water
    • Encourage hoverflies and ladybirds nearby
    • Sow thinly in free-draining soil
    • Avoid overwatering young seedlings
    • Thin seedlings to improve air flow