Right now, under some lights in my basement, sit several dozen pots of soil. Out of each sprouts a small seedling, only a few millimeters high — a humble beginning for plants that will grow to produce one of the hottest peppers on the face of the Earth: the Bhut Jolokia, commonly known as the ghost chili.
The Bhut Jolokia first came to my attention in 2007, when Guinness World Records crowned it “world’s hottest chili pepper” (though it’s since been deposed by another). Certified at well over 1,000,000 Scoville heat units, the fruit from this plant is 125 times hotter than the spiciest jalapeño.
At the time, tracking down seed stock for the pepper was a challenge. I was lucky enough to have a friend of a friend who worked for New Mexico State University’s Chile Pepper Institute (chilepepperinstitute.org).
These days, seeds can be purchased from online retailers or from private growers on Amazon and eBay. There are even “just add water” kits. Skip these. Chili peppers are easy to grow — once you know a few tips.
Materials and Tools
- Bhut Jolokia chili pepper seeds — available online
- Seed starting tray — with soil
- Pots, 3″ or 4″ (one per seedling)
- Fertilizer, nitrogen rich, such as 10-5-5 or composted manure
- Fertilizer, 5-10-10
- Heating pad
- Grow lights
- Digital oven thermometer
Illustrated by Evan Hughes
MAKE Volume 33 features our special Software for Makers section covering apps for circuit board design, 3D design and printing, microcontrollers, and programming for kids. Also, meet our new Arduino-powered Rovera robot and get started with Raspberry Pi. As usual, you’ll also find fascinating makers inside, like the maniacs on our cover, the hackers behind the popular Power Racing Series events at Maker Faire.
Try your hand at 22 great DIY projects, like the Optical Tremolo guitar effects box, "Panjolele" cake-pan ukelele, Wii Nunchuk Mouse, CNC joinery tricks, treat-dispensing cat scratching post, laser-cut flexing wooden books, sake brewing, growing incredibly hot “ghost chili” peppers, and much more.
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Steps
Step #1: Start your seeds
Next
- Chili peppers require a long growing season to produce mature fruit. In northern climates, it’s best to start your seeds indoors up to 3 months before the last frost date, allowing the plants plenty of time to germinate and grow a few sets of leaves before they’re transplanted outside. For me, this means getting my seeds and setup ready by mid-February.
- My indoor setup is simple. On a table in the basement, I have a seed starting tray, a heating pad, and lights. The tray is divided into 72 cells, each holding a few cubic inches of soil.
- Fill the cells with soil and place a single seed on top of each. No need to cover them; all they require for germination are the proper moisture and temperature. Thoroughly water the seeds and set the tray on the heating pad.
- Keep the soil moist and warm, between 75°F–90°F. You can use a digital oven thermometer to track the temperature. With luck, roots should emerge from each seed in 7–14 days. (Bhut Jolokia seeds will germinate at temperatures as cool as 65°F, but it’ll take 30+ days, and many seeds may fail.)
- Once they emerge, your tiny plants will require a good source of light. Since you’re doing this in the winter, indoor lighting is your best option. Fluorescent tubes are inexpensive and efficient, and they work well. Hang them above the plants with wire so you can adjust the height. It’s important to keep them only a few inches above the top of the peppers; any higher, and the plants will grow spindly. Leave the lights on 24 hours a day to give your peppers a jump-start on the season.
- The first set of leaves will be tiny and round. As each seedling establishes its root system, a second set of leaves will appear. When these “true leaves” emerge, transplant the peppers into 3"–4" pots. Over the next couple months, your plants will have room to grow a healthy root system and several more sets of dark green leaves.


































I grew them in a pot in some potting soil(miracle grow?) They didn’t turn out as spicey as habenero’s grown in garden. I have heard horse manure helps add heat, added to soil, so I found a neighbor with horses and am on way to clean out the barn:-)