This guide will show you how to grow chili peppers of all types in your own home garden and includes answers to many of your growing questions, such as pepper plant spacing, sun needs, length of growing season, chili pepper growing tips and more.
Let's talk about growing chili peppers. Chili peppers start off a bit slow, so it is helpful to start to grow your plants indoors a few weeks (anywhere from 8-12 weeks) before transferring them outside. Keep the early soil and budding plants constantly moist, but do not over water.
Keep them warm (80 -85 degrees F is best) and in a sunlit place. If this is your first time growing your chili peppers from seeds, learn more about growing chili peppers from seed.
Once there is no worry of frost, you can plant your pepper plants to your garden or chosen spot. Choose a location with full sunlight, as chili peppers LOVE the sun. Mix in some mushroom compost or other organic compost to make the soil fertile and moist.
How much space do peppers need to grow?
Space the chili pepper plants 18 - 36 inches apart with about 2 -3 feet between rows. The plants will eventually grow to nearly 3 feet high.
Water! Keep the soil constantly moist, but not soaking wet. Chili peppers love water as much as they love sun, but you don't want to inundate the plants, or you run the risk of rotting. Water every other day or every third day. Include a good plant food product. Learn more about growing chili peppers in the ground or garden.
Keep your chili pepper garden well weeded. You don't want nasty weeds stealing the water from your chili peppers.
Learn more about growing and harvesting chili peppers through the links below, including:
Best Soil for Growing Chili Peppers
Choose a good quality soil or potting mix for growing your pepper that allows for good drainage. Add compost or manure before planting if you’d like.
Watering Your Pepper Plants
As with growing chili peppers in general, keep the soil moist but do not overwater them. For pepper plants in pots or containers, do not let the soil dry out completely. When peppers start to grow, cut back on your watering schedule a bit, but again, do not let the soil dry out.
Optimal Growing Temperature for Growing Chili Peppers
The ideal growing temperature for chili pepper plants is between 70-90 F (21-32 C).
Best Fertilizer for Growing Chili Peppers
Tomato fertilizers work well for chili pepper plants, as do compost and well-rotted manure. A good 5-10-10 fertilizer is usually sufficient for peppers. Work it into the soil before transplanting, about 3 pounds per 100 square feet. We use a solution of fish emulsion and seaweed.
Once the peppers begin to appear, fertilize one more time. You can also use manure or compost, which releases more slowly into the soil. Much, however, is affected by your soil, so you may want to consider a soil test if you are having issues.
Diseases and Pests That Affect Pepper Plants
Stay vigilant with your pepper plants. Keep a constant eye out for common diseases like bacterial spot, mildew or rotting. Pests like aphids or spiders are common as well, so watch out for them.
Frequently Asked Questions about Growing Chili Peppers
I get a lot of questions about growing chili peppers. Here are some of the most frequent.
Do chili plants need sun or shade?
Chili peppers grow nicely in full sun. They will grow in partial shade, but they won't be as productive. A sunny spot is best. I have very successfully grown many varieties of chili peppers under my backyard deck, which is about 12 feet high. There is partial shade, but the garden gets a good dose of sunlight, so they grow very well.
How long does it take to grow peppers?
The length of growing time for chili peppers varies from pepper to pepper, though most mature in 60-150 days, which is a big range. Sweeter peppers typically mature in 60-90 days, with hotter peppers taking longer.
Consider, though - the number of days to maturity noted on seed packets means h the days after transplanting until the pepper plant bears mature peppers. It does not take into consideration the time it takes from planting seeds to growing into a seedling that you can transplant, which is about 8-10 weeks, so keep this in mind.
How long does a pepper plant take to bear fruit?
The length of time for chili pepper plants to start bearing peppers varies from pepper to pepper, though most mature in 60-150 days, which is a big range. Sweeter peppers typically mature in 60-90 days, with hotter peppers taking longer, up to 150 days.
What is the best food for chili pepper plants?
A good 5-10-10 fertilizer is usually sufficient for peppers. Work it into the soil before transplanting, about 3 pounds per 100 square feet. We use a solution of fish emulsion and seaweed.
Once the peppers begin to appear, fertilize one more time. You can also use manure or compost, which releases more slowly into the soil. Much, however, is affected by your soil, so you may want to consider a soil test if you are having issues.
How long can you keep chili plants?
Most chili pepper plants will only last a season in your garden, but if you transplant them and bring them indoors, and treat them to good conditions, you can keep them through the year and possibly longer. Some people have reported keeping their pepper plants for 3 years or longer.
Can you save seeds from your chili pepper plants and use them to grow plants later?
Absolutely! As a chili pepper grower, you may want to save the seeds from your current batch of chili peppers rather than purchase new seeds each year. Saving seeds also saves money, and ensures your harvest will include your very favorite peppers from season to season.
Luckily for us, chili peppers lend themselves to easy seed saving. Harvesting the seeds is a simple process, and they require very little effort to dry and store.
Chili Pepper Growing Tips
For successfully growing peppers, keep these growing tips in mind.
Do Not Over Water Your Pepper Plants
Pepper plants love their water, of course, and they need a steady supply, but peppers won't grow well in overly saturated soil. It waterlogs their roots. Use soil that retains moisture yet has proper drainage. Mulch is useful to prevent water evaporation.
If you are uncertain about watering, don't. Never over-water. Most diseases and growing problems are due to overwatering.
Do Not Overfertilize Your Pepper Plants
Using a lot of fertilizer may help the pepper plant to develop bright leaves and flowers, but hinders pepper production. A good 5-10-10 fertilizer is usually sufficient for peppers. Work it into the soil before transplanting. We use a solution of fish emulsion and seaweed.
Pinch Your Pepper Plants for Bushier Plants
When the pepper plant is about six inches high, clipping the growing tip will result in a bushier plant. Remove any flowers that appear early, as the early flowers diminish the plants overall energy.
Got any further questions? Ask away! I'm happy to help. Feel free to contact me anytime and I will do my best to answer your questions. -- Mike H.
Ash says
Hi I'm Ash and live on the south coast in UK.
The hardest thing I find is getting the seeds to sprout regardless of type!
Any ideas?
Kind regards,
Patt Morrison says
I live in zone 4 Wisconsin in a very rural area. How deer/critter friendly are green chili peppers? Was wondering if I need to do some type of barrier around them.
Mike Hultquist says
Hi, Patt. I'm from Northern Illinois originally and I did have some issues with bunnies. Not every year, but enough for me to need a small fence around the garden. You can try sprays, but I found the wire fence most effective.
Tom says
After 3 months the Carolina Reaper have had a lot of flowers, but no peppers are budding. This time last year I have several peppers on each plant. Your thoughts?
Mike Hultquist says
Tom, usually it is a temperature issue. When it's too hot (or even too cold), this can happen. Also, it's possible they could use more fertilizer, though temperature is a big factor.
Ian M. says
Hey just wanted to start with love the recipes, I'm going to be fermenting in a big way this summer! My question is about thinning peppers off of the plant. I have a couple Thai chillies growing in my garden and they are LOADED with chillies. They are all quite green and I was wondering if it would be a good idea to remove a few to help the others rippen? Thanks!
Mike Hultquist says
Ian, I wouldn't worry at this stage. Most plants are good about only growing pods they can support. Enjoy the peppers!
Nathan says
How well will a pepper plant grow if it's always in a windowsill and never gets transplanted to outdoors? I live in an apartment complex, so no place outside to legally transplant it, and I'm only growing 1 pepper plant, so I'm hoping for the best.
Watering every other day is good I hope?
Mike H. says
Hi Nathan, growing a pepper plant solely on a windowsill can be challenging, but it's definitely possible with proper care. Make sure you give it plenty of sunlight, the windowsill is not too drafty or cold, the container ls large enough, the soil is well-drained, etc. AS for the watering... every other day might be too frequent, especially if the soil retains moisture well. You probably want to water your pepper plant when the top inch of the soil feels dry to the touch. Stick your finger into the soil to check for moisture. I am really excited for your experience, so please keep me posted!
Glenn Huszti says
What is your experience with Fabric grow bags for peppers if you have used them before?
Mike Hultquist says
Glenn, grow bags can be a great way to grow peppers where space is limited. They give you mobility, so you can move them around to sun or shade as needed. Just be sure to give them enough water.
Glenn Huszti says
Thanks for the feedback.
Mld says
Thanks for reply. I will try repotting. It will have to remain indoors I’m afraid as outdoors in Scotland temperatures are only now reaching mid teens Centigrade and getting colder as autumn advances. I was rather too late sowing seed but thought I would give it a try anyway.
Mld says
Why are the the dead flowers complete with stalks dropping from plant afterwards. Grown indoors and probably not at optimum temperature but plant seems healthy.
Mike Hultquist says
Issues like this can happen for a number of reasons, including disease, over watering, under watering, using too much fertilizer. It's obviously the sign of an unhealthy plant. The issues are magnified in pots because the growing environment is so much smaller. You might try repotting the plant with different soil, or moving it outside to grow, if possible.
Kat says
i transplanted my seedlings i had grown from seeds into a larger pot and they have been in full sun at least 8 hours a day but they haven’t
developed in over 10 weeks. they are still green but haven’t grown mush if at all.
any suggestions?
Sallie says
One of my plants has green leaves but the fruits are turning yellow on just this plant. Any idea why and are they ok to eat?
All my others have turned red after the green phase
Thanks
Mike Hultquist says
Sallie, what type of pepper? Some peppers do turn yellow in color naturally. If they are firm, not soft or showing any signs of rot or withering, they could be just fine.
Erin says
My poblano plants are covered with peppers, but they seem to have stopped growing at about 2-3 inches. They've been the same size for about a month. The plants look healthy, but the peppers just aren't getting any bigger and some appear to be turning reddish.
Mike Hultquist says
Erin, when they turn reddish, they are maturing and will eventually need to be picked. Some plants don't produce large pods. A lot depends on the growing conditions.
Joko Prihanto says
very good tips
Millette says
How do you treat the bugs that appear on your chili plants? I have a very young plant and it appears that it has aphids or a small white insect on the stems.
Mike Hultquist says
A popular way to deal with aphids on your pepper plants is to mix dish soap with water in a spray bottle, then gently spray the plants every few days. This will help keep them away.
JOSEPH KARIUKI says
I miss pepper farming