Growing Komodo Dragon Peppers: A Complete Profile
By Growing Home Greens Team · October 1, 2026
Komodo Dragon is a superhot from the United Kingdom, a Capsicum chinense like the rest of this group.
Heat and harvest
Pepper Joe’s rates it at 1,500,000 Scoville units and up, with 2 inch pods, and lists 100 to 109 days from transplant. Pods ripen red.
Plant size
Pepper Joe’s gives plants about 3 feet tall. One plant per square foot in the Garden Designer, with a stake once it sets fruit.
Start it early
Start seed indoors about eleven weeks before your last frost, the same as our other superhots, and expect slow, uneven germination. The Superhot Pepper profile covers bottom heat for germination, gloves for handling the fruit, and overwintering the plant indoors so you are not starting from seed every year.
The companion guide lists what to plant nearby.
Growing it next to other peppers
Different pepper varieties cross-pollinate easily, hot ones included. NC State Extension notes that when hot and sweet peppers cross, the heat shows up in later generations grown from saved seed, and suggests keeping varieties 20 to 30 feet apart if you plan to save your own. Baker Creek, which grows seed for sale, isolates varieties by at least 500 feet. If you buy fresh seed each year, you can plant different peppers side by side.
Sources: Pepper Joe’s, Komodo Dragon; NC State Extension, Saving Your Own Seed.
Companion planting guide for Komodo Dragon Pepper · Find your planting dates
Typically viable in USDA zones 3-11. Not sure your zone? Look it up by ZIP code.
Mature height: 2.5-3 ft
Method: Start indoors: Start indoors from seed, then transplant outside. It needs a head start most zones can't give it by direct-sowing alone.
When to plant Komodo Dragon pepper, by zone
Every zone Komodo Dragon pepper grows in. Pick your zone in the header and it will be highlighted here. Each zone links to its full page.
| Zone | Start indoors | Sow or plant out | Harvest |
|---|---|---|---|
| 3a & 3b | Mar 14–Mar 21 | Jun 13–Jun 20 | Sep 26–Oct 3 |
| 4a & 4b | Feb 27–Mar 6 | May 29–Jun 5 | Sep 11–Sep 18 |
| 5a & 5b | Feb 22–Mar 1 | May 24–May 31 | Sep 6–Sep 13 |
| 6a & 6b | Feb 7–Feb 14 | May 9–May 16 | Aug 22–Aug 29 |
| 7a & 7b | Jan 23–Jan 30 | Apr 24–May 1 | Aug 7–Aug 14 |
| 8a & 8b | Jan 7–Jan 14 | Apr 8–Apr 15 | Jul 22–Jul 29 |
| 9a & 9b | Nov 30–Dec 7 | Mar 1–Mar 8 | Jun 14–Jun 21 |
| 10a & 10bSummer window | May–Jul | Aug–Sep | ~105 days after transplanting |
| 11a & 11bSummer window | May–Nov | Aug–Feb | ~105 days after transplanting |
Harvest dates are about 105 days after the sow or plant-out date, not after starting seeds indoors.
See exact start-indoors, direct-sow, and harvest dates for your zone →
How many Komodo Dragon Pepper plants fit per square foot?
Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 2.5-3 ft.
Soil & water: pH 6-6.5. Needs well-drained soil. Amend with lime if soil pH falls below 6.
Good companions for Komodo Dragon pepper
- Basil: Reputed to repel aphids and improve pepper growth nearby, but a controlled garden trial testing this same claim on a related crop found no pest-reduction benefit from basil, and found higher pest counts on the basil-companioned plants. Treat this pairing as unproven, not as a working pest deterrent.
- Onion: Reputed to deter many common pepper pests, though this specific pairing hasn't been tested the way onion/carrot pest-masking has. Treat it as garden tradition.
Full companion guide, including what to keep away from Komodo Dragon pepper →
Where to buy Komodo Dragon pepper seeds
None of the seed suppliers we list carries Komodo Dragon pepper seeds right now. A local garden center or a specialty seed house is the place to look.
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See it growing
Search YouTube for "growing Komodo Dragon pepper" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
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Growing Komodo Dragon Pepper: A UK-bred superhot rated at 1.5 million Scoville units and up.
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