Growing Chilli peppers, also Hot peppers

Capsicum sp. : Solanaceae / the nightshade family

Jan F M A M J J A S O N Dec
    S                  
        T T            
        P P            

(Best months for growing Chilli peppers in USA - Zone 5a regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • P = Sow seed
  • Grow in seed trays, and plant out in 4-6 weeks. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 64°F and 95°F. (Show °C/cm)
  • Space plants: 16 - 20 inches apart
  • Harvest in 9-11 weeks. Wear gloves to pick 'hot' chillies.
  • Compatible with (can grow beside): Best grown in a separate bed as chillies need plenty of light and air circulation.

Your comments and tips

21 Jun 16, Annie (Australia - sub-tropical climate)
What type of soil do chillies prefer?
03 Jun 16, Robert cooper (Australia - sub-tropical climate)
When do I prune my chilli plant What do I feed my chilli plant. Thank you
17 Apr 16, Louisa (Australia - sub-tropical climate)
I have a birds eye chilli bush that a friend gave me half grown that was in a pot. My husband transplanted it in backyard with commercial potting mix. My problem is the bush has plenty of flowers but no fruit. What can we do so as the bush will yeild chillies. I live in Townsville, Nq. Any help would be most appreciated.
14 Oct 16, Adam (Australia - sub-tropical climate)
I know the teply is late but try a bit of potash to up the potassium and avoid nitrogen heavy fertilizers during the flowering season.
31 Mar 16, James L (Australia - temperate climate)
Its probably a little late to plant out in the garden BUT you can grow them in minature greenhouses year round that can be bought from bunnings or masters .
31 Mar 16, James L (Australia - temperate climate)
Temperate :)
31 Mar 16, James L (Australia - temperate climate)
Try feeding fortnightly with Yates Thrive flower and fruit soluble fertiliser. I have never had problems with lack of heat. Also make sure you keep your jalapenos away from any other member of the capsicum family ad they may cross breed and produce fruit that is not consistent with its original description.
12 Apr 16, Cassie (Australia - cool/mountain climate)
'Cross breeding' can only affect plants of the next generation ie the offspring of your current jalapeƱos
14 Mar 16, Cal (Australia - temperate climate)
Hi, keen to start growing some naga or similar - I'm based in Sydney and am aware that summer is ending as I write this, will this delay the germination/growth/harvest or are they quite resilient to seasons? I intend on using a heat map in my apartment to begin with, before potting and moving outside onto a balcony. Let me know if this sounds like it'll work - all advice appreciated!
05 Mar 16, yvonne (Australia - sub-tropical climate)
i have planted jalapeno chillies but the fruit has no heat just like a green capsicum! what can iI do to make the fruit hot Or is it best to just start again with new plants?
Showing 71 - 80 of 272 comments

I don't mean to be rude, but would like to clarify a few things that have been said here, and give a bit of information. The Bhut Jolokia is supposed to be ~1.5 million Scoville units in heat and is realistically about 1 million, compared to a Habanero, which is usually ~300,000 Scoville units. The habanero is too hot for most, and the Bhut Jolokia is only for the diehard Chilliheads. Scotch Bonnets, Habaneros, and Bhut Jolokias are all Capsicum Chinense, whereas the standard chillies (pointy-ended ones) are Capsicum Annuum, and are usually alot more mild. Sweet Bell Peppers (Capsicums) are C. Annuum, and can cross-pollinate with other Chillies. Kate - Chillies are usually fairly slow-growing plants compared to things like Tomatoes etc. Right now, it may be too cold for them to be in full swing. The flowers are self-fertile, so will pollinate themselves, but you need to help them along by sticking pollen to the Pistil using a cotton bud or similar. Swirling your finger around gently inside the flower works too. When the fruit is pollinated, the flower will go brown, and drop off, and the fruit should start growing. Flowers browning and dropping could also be due to a poor feeding regime. On most (all?) fertiliser bottles you will see a NPK number set. N=Nitrogen, P=Potassium, K=Phosphorus. General vegetative growth (leaves/stems) is encouraged by high-N analysis fertilisers, and flowering is encouraged by high P/K analysis fertilisers. At this time of year, I have my chillies inside on shelves in front of a large west-facing window. Usually, I find that if the overnight low temperature drops below about 5 degrees C then they will stop growing/flowering. I would try and be patient with your Capsicums and Chillies. As they are already established, you should get a good head start this season. Good luck!

- Buzz Killington

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