A Bounty Worth Sharing: How to Grow Hot Peppers

Growing hot peppers is the ultimate exercise in getting to know your neighbors — and I’ll tell you why later in this article.

Want to learn how to grow your own hot chili plants? These guys are productive- so they're perfect for sharing! Read more now on Gardener's Path, or Pin It for later.

In the meantime, let’s learn a bit about growing chilies, and why you should consider adding some spice to your garden.

Members of the nightshade family, Solanaceae, most cultivars originate from Capsicum annuum, a plant native to Mexico.

One of the most fun things about growing chilies is their color-changing properties. Usually — but not always — peppers start out green and then morph into yellow, orange, red, or purple.

Some chilies, such as jalapeños, start out green and fairly mild-tasting but turn red and get spicier as they remain on the plant.

What Makes Them Spicy

Peppers’ spiciness comes from the chemical compound capsaicin, which stimulates chemoreceptor nerve endings in the skin, especially in the mucous membranes. The more capsaicin, the “hotter” the chili.

Pepper cultivars are rated on the Scoville scale, with ascending numbers indicating increasingly spicy fruit. For example, bell pepper — sometimes called a “sweet pepper” and generally considered mild-flavored — is rated 0 to 100 on the Scoville scale, whereas sweat-inducing habanero is way up the chart at between 100,000 and 300,000 on the scale.

Which Is the Hottest and Where to Buy

Hundreds of cultivars are available, with more coming on the market frequently, as breeders work to outdo each other and create “the hottest pepper ever.”From innocuous bell to mild green jalapeño (2,500-8,000 Scoville heat units) to medium-hot bird’s eye (100,000-225,000 SHU) to tongue-scorching Trinidad scorpion (1,463,700 SHU), there’s a chili for any palette.

If mild is more your style, start with jalapeño, perhaps with these seeds available from Benjawan via Amazon.

Jalapeño Chile Pepper, 100 Seeds

You’ll receive 100 seeds.

Poblanos — known as “ancho” when dried — are fairly mild as well, at 1,000-2,000 on the Scoville scale, but are larger and supply a delicious flavor.

A large grande pancho pepper leans on top of a pile of peppers. The green pepper reflects the light off the surface of it. A large, curved stem protrudes from the top. The peppers are resting on a dark, wooden table.

Ancho Grande Pepper Seeds

Find poblano seeds in various quantities at True Leaf Market.

If you’re willing to be a bit more adventurous, consider cayenne, which hits the scale at 50,000 to 100,000 SHU. Find seeds for this spicy delight at PowerGrow Systems, available via Amazon.

Cayenne Red Long Pepper Seeds

The approximately 100 seeds in the packet will produce heavy yields of finger-width, thin-walled red peppers that can grow up to 12 inches long. Cayenne is a good variety for eating fresh or for drying.

A favorite in Texas gardens is the chili pequin. These tiny little pearls of spiciness come in at 40,000 to 60,000 on the Scoville scale.

Pequin Chili Pepper Live Plants

Available via Amazon, Hottest Plants will ship you a live 4- to 6-inch plant that will bear fruit in about 100 days. This plant can get quite large and will die out with a cold snap, but comes back year after year in Texas.

If you really want to fry your family’s tongues, grow Scotch bonnet from Harley Seeds, available through Amazon.

Heirloom Scotch Bonnet Pepper Seeds

Closely related to habanero, Scotch bonnet falls at between 150,000 and 325,000 on the Scoville scale. You’ll receive about 30 seeds that produce a compact plant with plentiful thin-skinned peppers that are closely related to the habanero.

In 2013, the Guiness Book of World Records certified the Carolina Reaper as the hottest variety, with one specimen hitting the Scoville scale at 2.2 million.

Carolina Reaper Pepper Plants

If you’re brave enough to try the Reaper, find plants for this cultivar from Hirt’s Garden, available via Amazon.

Share and Share Alike

You can grow peppers from seeds or from nursery starts. Whichever you go with, keep in mind that you will get plenty of chilies from just a couple of plants.

Whenever I buy a six-pack of pepper starts, I share some with my neighbor Louie, and vice versa. This way we each get a variety of cultivars, and not too many of any one type.

Some like it hot- and if you do, chili plants make the perfect addition to your veggie patch. We share our tips for growing hot peppers at home- read more now on Gardener's Path, or Pin It for later.

If you wish to grow from seeds, start them indoors 8 to 10 weeks before you intend to transplant, which should be two to three weeks after the expected last frost.

Pepper seeds require warm temperatures (70 to 80°F) to germinate. Some gardeners use a warming mat, such as this one from Vivosun, available via Amazon.

Vivosun Durable Waterproof Seedling Heat Mat, 10 x 20.75″

Place your seed tray on this mat to encourage germination and keep the seedlings’ roots warm. You can transfer them outside when night temperatures average around 55 to 60°F.

Some gardeners place seeds between sheets of damp paper towel, put that inside a zippered plastic bag, and place the bag in a warm place, such as the top of a refrigerator.

When the seeds sprout, plant them in small pots, and place in a sunny southern window.

When the nights are warm and it’s time to transplant outdoors, select a spot that gets at least six hours of sun a day.

These spicy edibles prefer well-drained sandy loam with plenty of organic matter. Space plants 12 to 24 inches apart, depending on variety.

Unlike with tomatoes, you don’t need to bury the stem of peppers; just dig a small hole and set the starts into the soil at the same level at which they were previously growing.

Water well, and fertilize with a 10-10-10 mix, working the fertilizer into the soil.

As the growing season progresses, water your plants enough to keep them from wilting. Apply more fertilizer when the first fruits begin to enlarge.

Weed by hand to avoid damaging roots.

Pests? Really?

Peppers can be plagued by flea beetles, which can be treated with diatomaceous earth. Or mix up a solution of 1 cup rubbing alcohol, 2 1/2 cups water, and 1 tablespoon liquid soap. Spray the mixture on the pepper plants.

If you’re really desperate, you can use a chemical treatment, such as Sevin Bug Killer. But keep in mind that it is extremely toxic, and any vegetables sprayed with it should not be eaten for at least 3-14 days. Chemical pesticides should only be used when there is a clear need, and many gardeners would advise using them only as a last resort.

Aphids can also be a problem. For these pests, try neem oil, such as this one from Garden Safe via Amazon.

Garden Safe Neem Oil Extract Concentrate

This concentrated product will make 16 gallons of treatment.

Neem oil will also address leaf spot, which is often caused by a fungus.

Harvest — Can You Smell the Salsa?

The first chilies will be ready to pick 8 to 10 weeks after transplanting. You can pick them at any stage, when they’re still green, or later when they’ve changed to a brighter color.

A pile of mostly red chilies with bright green stems. The spicy chilies are freshly picked and ripe. A few of the chilies are green. Some of the chilies have a rough texture, some are smooth.

If I need a chili for dinner, I’ll pick whatever’s out there, even if I know I’m early and the pepper would get bigger if I left it on the plant. If I need it, I’ll pick it, knowing many more will soon follow.

I try to pick my peppers just in time, but if a ripe fruit has been on the bush for too long, it’ll start to get a tough skin or shrivel.

Store harvested peppers in the vegetable drawer of the refrigerator — they’ll keep for 5 days or so.

If your harvest is abundant, dry some of your crop for use year-round.

To dry your chilies for future use, use a food dehydrator or put them in a single layer on a sheet pan in an oven set at its lowest setting, with the door cracked open. Keep an eye on them and flip them occasionally. This method can take several hours — you just have to eyeball it.

Chili pepper plants tend to be plentiful, but this homegrown crop is perfect for dehydrating (and dried chilies make a great gift)! Read more now on Gardener's Path, or Pin It for later.
Photo by Gretchen Heber

I don’t have a dehydrator, and I’m too lazy to keep an eye on the oven for hours, so I just dry my chilies on a paper towel on the kitchen counter.

I let them sit there for several days, then when they’re shriveled and dry, I toss them in a decorative bowl I always have on the counter.

If your house is humid, this might not work for you. At my house in the summer, the air conditioning runs full blast 24/7, sucking all the humidity out of the air.

Head for the Kitchen

Now that you have all of these delicious peppers, it’s time to put them to work in the kitchen. First, you might want to check out this guide to cooking with hot peppers.

The Best Pico de Gallo

Let’s start with the basics: pico de gallo. This versatile mashup of fresh vegetables is the must-have accompaniment for any Mexican dish.

A scoop of homemade pico de gallo fills the blue, rounded square plate it is on. The pico de gallo is filled with the red of the tomatoes, the greens of the peppers and cilantro and the whites of the onions. Next to the plate is a pile of tortilla chips. Under the plate is a white napkin sitting on top of a brown table.
Photo by Nikki Cervone

Find the recipe on our sister site, Foodal.

Fire Roasted Poblano Queso Dip

Now that you’ve mastered pico, try your hand at queso, another derivative of Mexican cuisine.

This recipe calls for poblanos, the distinctive flavor of which makes them one of my favorite non-spicy pepper types.

Roasted poblano queso dip is delicious when it's made with homegrown peppers. We share more of or favorite hot pepper recipes, and tips for growing them- read more now on Gardener's Path or Pin It for later!
Photo © Hunger Thirst Play

Get the recipe from our friends at Hunger Thirst Play.

In addition to playing an important role in Mexican cuisine, chilies enjoy a prominent place in the curries typical of east and south Asia, as well.

The Best Eggplant Curry

This vegetarian curry calls for two types of peppers — dried, ground cayenne (do it yourself!) and your choice of red chilies. Use whatever’s fresh from the garden to lend the spice level you’re comfortable with. And don’t forget your homegrown eggplant!

Spicy eggplant curry and rice fill the metal bowl that they are in. On the right, the curry can be seen with its many colors of red, yellow and green. On the left, a fork and spoon with wooden handles rest on top of a pile of brown rice. The metal bowl, with two metal handles on the sides, is sitting on top of a dark stained, rough edged wooden table.
Photo by Felicia Lim

Get the recipe from Foodal.

Spiralized Sweet Potato Noodles with Roasted Red Peppers and Sun Dried Tomatoes

Let your bells stay on the bush for some extra time so they develop a beautiful red color, then add them to this healthful dish that features gluten-free noodles.

A bowl filled with the orange of sweet potato noodles and the red of the roasted red peppers rest on a lightly stained, smooth wooden table. On top of the dish is a small pile of freshly grated parmesan cheese and two dried sage leaves. Behind, another prepared bowl can be seen as well as a small bowl of the parmesan cheese.
Photo by Nikki Cervone

You’ll find the recipe for this tasty main dish at Foodal.

It’s More Fun When You Share

Whatever you plant, you’ll likely produce more chilies than you could ever eat, which means you get the opportunity to share with your neighbors. We always end up with a selection from Louie and sometimes from other neighbors, as well.

Two bright red chilies protruding out from the plant that bears them. These ripe chilies are ready to be picked and eaten. The plant that bears them is starting to fade to brown where the stems are attached. The chilies are growing in a flower pot, as can be seen in the background. There is also mowed grass and a sidewalk suggesting the plant resides in someone's backyard.

Peppers are easy to grow, and each plant is quite generous with its bounty, meaning you don’t need a whole row to get enough spiciness for your family and a few of your neighbors.

What are your favorite varieties to grow? Tell us in the comments section below, and if you want info on adding another nightshade plant to your garden, learn about growing tomatillos here.


Don’t forget to Pin It!

A collage of photos showing different types of hot peppers growing on the bush.

Pequin chili photo by Gretchen Heber, © Ask the Experts, LLC. ALL RIGHTS RESERVED. See our TOS for more details. Product photos via Benjawan, True Leaf Market, PowerGrow Systems, Hottest Plants, Harley Seeds, Hirt’s Garden, Vivosun, and Garden Safe. Uncredited photos: Shutterstock.

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About Gretchen Heber

A former garden editor for a daily newspaper in Austin, Texas, Gretchen Heber goes through entirely too many pruners and garden gloves in a year’s time. She’s never met a succulent she didn’t like and gets really irritated every 3-4 years when Austin actually has a freeze cold enough to kill them. To Gretchen, nothing is more rewarding than a quick dash to the garden to pluck herbs to season the evening meal. And it’s definitely time for a happy dance when she’s able to beat the squirrels to the peaches, figs, or loquats.

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