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Cilantro

Nothing brightens up a Mexican dish like the fresh green leaves of cilantro grown right outside your kitchen door.

CilantroMexican cuisine gets a refreshing kick with this flavorful herb! Native to the Mediterranean, kitchen gardeners across the country enjoy growing cilantro (Coriandrum sativum) for its fresh, bright green and aromatic leaves. The annual’s pungent seeds — known as coriander — are dried and used as a spice, both whole and ground.

Cilantro grows best in pots or prepared beds with loose, well-draining soil. Plants can reach 3 feet tall and have a reputation for being easy to cultivate. Will self-seed.

Fun Fact: The Chinese believed coriander provided immortality and it is thought that the crushed seeds, when added to warm wine, have aphrodisiac qualities.

Choose from a large selection of heirloom herb seeds available at Planet Natural. Planting instructions are included with each ​packet and shipping is FREE!

Quick Guide: Planting, Growing & Harvesting Cilantro

  1. Plant for fresh leaves or seeds as an addition to ethnic cuisine
  2. Prefers full sun, cooler weather and consistent water
  3. Direct seed only (no transplanting) after all danger of frost is past
  4. Will self-seed
  5. Harvest as needed for cooking, dry for future use and harvest seeds

Sunlight: Full sun to partial shade
Maturity: 60-75 days (leaves), 100+ days (seed)
Height: 1 to 3 feet
Spacing: 8 to 18 inches apart

Site Preparation

Cilantro may be grown in containers or home herb gardens. It requires regular water throughout the garden season and does best in full sun and loose soil amended with organic compost. The plant will bolt (flower and go to seed) quickly in warm temperatures.

How to Plant

Sow cilantro seeds directly into the ground. Do not transplant — the long tap root is delicate and if damaged, the plant will fail. Sow seeds 1/2 inch deep after all danger of frost has passed. Seeds germinate at temperatures ranging from 50-85˚F with germination usually occurring in 7-10 days. When plants emerge, thin them to 8-12 inches apart.

Tip: Make successive sowings every 2-4 weeks for continuous summer supplies.

Harvesting and Storage

Pinch fresh leaves as needed when plants are thriving. As with most culinary herbs, cilantro is best picked early in the morning just as the dew evaporates.

Do not wash the leaves or aromatic oils will be lost. Leaves store poorly unless preserved in something like salsa, but even then its flavor can fade (watch — video).

Insect & Disease Problems

Herbs rarely have serious pest problems. However, keep a close watch for powdery mildew, and if symptoms are found, treat cilantro with the following least-toxic techniques:

  • Remove diseased foliage from the plant and clean up fallen debris on the ground.
  • Wash foliage occasionally to disrupt the daily spore-releasing cycle. Neem oil and PM Wash, used on a 7 day schedule, will prevent fungal attack on indoor plants.
  • Use a slow-release, organic fertilizer on crops and avoid excess nitrogen. Soft, leafy, new growth is most susceptible.
  • Destroy all plant debris after harvest (see our article Fall Garden Cleanup). Do NOT compost.
  • Apply sulfur or copper-based fungicides to prevent infection of susceptible plants. For best results, apply early or at first sign of disease. Spray all plant parts thoroughly and repeat at 7-10 day intervals up to the day of harvest.

Seed Saving Instructions

To harvest seed, cut plants and tie upside down in a dry, dark place for several weeks until the seed turns brown. When dry, place flower heads in a paper bag and thresh until all seeds are removed. Sift out seed from chaff. Make sure seeds are completely dry before storing.

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2 Responses to “Cilantro”

  1. Dennis Barnes on March 6th, 2014 at 7:33 pm #

    I’ve always had a problem with Cilantro. It took me many years to narrow it down and I’ve always loved Mexican cuisine but could not figure out why everything tasted like it had bleach in it. Now I found out that a very few of us out their have the same problem with cilantro tasting like soap. Is there another variety that isn’t so Soapy or bleachy?

  2. Louis on July 2nd, 2015 at 11:53 am #

    Good evening (South Africa) I plant Coriander on a large scale. We crush the seeds by rolling over it with a rolling pin prior to planting. Whe sow the seeds in furrows of 10mm deep. We do not thin out. This affords us to harvest 3 times from same plant. By not thinning we get a good yield per ha.
    We only harvest early morning after watering nite before.
    Regards.

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