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How to Grow Chili Peppers

Updated on July 21, 2015
LisaRoppolo profile image

Lisa is a writer & gardener with an extensive knowledge of plants and plant care. Her articles focus on easy care tips for home gardeners.

Chili Pepper Origins

The Chili Pepper has been cultivated for thousands of years in the Americas. Archeological scholars believe it was first cultivated/ domesticated in Central America more than 6,000 years ago.

Christopher Columbus was the first non-native person to encounter these plants during his journeys to the Caribbean and named them "peppers" because of the similarity of flavors and spiciness to the common black and white peppercorn plant (Piper species).

Chili peppers were a great cooking substitute for the black and white peppercorns, which were extremely expensive and only the "elite" had access to them (and some towns even used the black and white peppercorns as currency!).

The Chili Pepper eventually made its way to Asia (thanks to heavy trading by the Portuguese).

In modern times, India has been the leader when it comes to consumption and cultivation of Chili Pepper plants, but Chili Peppers remain very popular throughout the world and is commonly grown in the home vegetable garden.

Serrano Peppers
Serrano Peppers | Source

Chili Pepper Care

Chili Peppers are one of the easiest plants to grow in the summer vegetable garden. They are a part of the Nightshade family of plants, which include Tomatoes, Sweet Bell Peppers, Potatoes, Tomatillos and Husk/ Ground Cherries.

Their requirements are very similar to Tomatoes and Bell Peppers. They require at least 6 hours of sun to perform their best and grow well in temps above 65 degrees, so plant your chilies outside in the garden after your last estimated frost date for your region. They require moderate moisture and perform well in hot, humid weather. It has been my experience that they perform better than regular bell peppers in really hot and humid weather.

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How to Grow from Seed

If you don't want to purchase seedlings from your garden supply store or nursery, Chili Peppers are easy to grow from seed.

  1. Plant seeds in seed starting mix 6 weeks before your last frost date.
  2. Keep soil moist and in an area that is at least 65 degrees for good germination.
  3. Seedlings usually emerge in about two weeks.
  4. Keep them in a sunny window or supplement their light with a grow light until temps outside are above 50 degrees during the day.
  5. Once temps outside are above 50 degrees, slowly start putting them outside, first in a sheltered spot, then in a few weeks in a full sunspot during the day to start "hardening them off".
  6. At night, bring the seedlings back in the house.
  7. Plant them out in the garden permanently after your last frost date and when temps at night don't dip below 50 or 60 degrees.

Hungarian Hot Wax Pepper
Hungarian Hot Wax Pepper | Source

What are Scoville Heat Units?

Scoville Heat Units (SHU for short) is a scale of measurement to determine how hot/spicy a chili pepper is. The unit starts at zero for no heat (i.e. Bell Peppers) and the hottest unit is set at 2.2 Million units (The Carolina Reaper is now considered the hottest pepper at 2.2M SHU, taking the title away from the Ghost Pepper, which has a SHU of 1.6M).

Common Chili Varieties Scoville Heat Units

Variety
SHU
Jalepeno
2,500 to 8,000
Hot Lemon
5,000 to 30,000
Ancho
1,000 to 2,000
Cayenne
33,000 to 50, 000
Hungarian Hot Wax
5,000 to 10,000
Habenero
100,000 to 350,000
Serrano
6,000 to 23,000
Ghost Pepper (Bhut Jolokia)
1.6M
Hungarian Hot Wax peppers with tomatoes and onions.  The start of a yummy Salsa!
Hungarian Hot Wax peppers with tomatoes and onions. The start of a yummy Salsa! | Source

Culinary Uses

High in Vitamin C, Chili Peppers are used in a wide-range of dishes.

Some of the most popular applications are:

  • Salsa-used raw and blended with tomatoes, onions, garlic, cilantro and spices.
  • Cooked into sauces.
  • Dried and ground into a powder for seasoning.
  • Fresh Ancho peppers are stuffed, battered and fried for the popular dish, Chilies Rellenos.

Hot Lemon Peppers
Hot Lemon Peppers | Source

Did You Know?

The ancient Mayans used dried chili peppers blended with cocoa powder added to water as a beverage. This is the first instance we know of chocolate used as a beverage (i.e. Hot Chocolate).

Medicinal Uses

The active ingredient is Capsaisin, which is what gives Chili Peppers their heat. Modern research of this extract has led to its discovery as an effective and non-toxic pain reliever. Common ailments Capsaisin helps reduce or eliminate pain from:

  • Arthritis
  • Headaches
  • Skin pain that is common with the Shingles Virus

Capsaisin is still being tested as a possible pain relieving treatment for some Cancers as well.

Ancho Pepper and plant
Ancho Pepper and plant | Source

Chili Pepper Recap

Chili Peppers are a great addition to any vegetable garden. If you do a lot of cooking like I do, they are an interesting and welcome ingredient in many ethnic dishes. My advice is to experiment with different types and SHU's to see which you enjoy the best. Happy Gardening!

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© 2014 Lisa Roppolo

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    • Patsybell profile image

      Patsy Bell Hobson 3 years ago from zone 6a, SEMO

      It's good to get an overview of peppers. Very helpful. Thanks for a well researched hub.

    • LisaRoppolo profile image
      Author

      Lisa Roppolo 3 years ago from Joliet, IL

      Thanks!

    • profile image

      nino zonio 2 years ago

      i don't know how to put a fertilizer

    • LisaRoppolo profile image
      Author

      Lisa Roppolo 2 years ago from Joliet, IL

      You don't want to fertilize too much or else you will not get much fruit. I would only fertilize once during planting in its permanent spot. You can use an all purpose granular mix and put a teaspoon in the bottom of the planting hole.

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