Growing Capsicum, also Bell peppers, Sweet peppers

Capsicum annuum : Solanaceae / the nightshade family

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

Not recommended for growing in New Zealand - cool/mountain regions

  • 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: 8 - 20 inches apart
  • Harvest in 10-12 weeks. Cut fruit off with sharp knife.
  • Compatible with (can grow beside): Egg plant (Aubergine), Nasturtiums, Basil, Parsley, Amaranth
  • 'Banana' capsicum
  • A yellow capsicum

Small bushy plant about 40cm high. The seeds are reluctant to start germinating if temperatures drop at night. These are best sown in small trays in a warm, sheltered place: a small greenhouse if possible. Plant out when about 10 -12cm (4-5in) tall.

They are from the same family as chilli but are not hot and spicy. The seeds and white flesh are bitter.

Capsicums are frost tender and need warmth to ripen the fruit to the brilliant reds and yellows of commercial ones. They can be used green but are not as sweet.

There are a number of colours available, chocolate, black, yellow, orange as well as red. They all start off green and change as they ripen.

In cool, wet weather cover with a cloche or frost fleece.

Culinary hints - cooking and eating Capsicum

Can be sliced and seeded and used raw in salads.
Will freeze successfully without blanching if seeded and sliced.

Brush with olive oil, roast at a high temperature until the skin changes colour then put in a covered dish until cool and rub off the skin and remove seeds.

Your comments and tips

26 Apr 20, Kath (New Zealand - temperate climate)
I have a green and yellow bell pepper plant that are still producing, although the yellow ones are black and I’m not sure if they will turn yellow. Shouldn’t they have finished producing by now? We are still getting some sunny days but the days are shorter and cooler, I’m just wondering if these peppers will reach maturity now we are in Autumn?
28 Apr 20, Anon (New Zealand - temperate climate)
If you have had a good/great crop I would be happy with that. They may produce but what is the quality like?
10 Dec 19, Jenny Cathcart (New Zealand - temperate climate)
Should laterals be picked off capsicums? Thank you.
16 Jan 19, Shirley (New Zealand - temperate climate)
I have two very healthy looking plants but they only have one large capsicum on each plant even though there were more flowers...should I have picked the fruit when small to encourage more to grow? They were planted in fresh tub mix.
17 Jan 19, Mike Logan (New Zealand - temperate climate)
Look up website biobees about pollination of capsicums. No don't pick fruit off.
22 Dec 18, David Maunder (New Zealand - sub-tropical climate)
Do they need fertilising and if so what do you use
02 Jan 19, Mem (New Zealand - temperate climate)
Yes they do,I use wally's strawberry fertilizer and a general liquid feed every 2 weeks.Its also a good idea to make sure they get enough calcium as this can effect the fruit.They will produce fruit without feeding but it is generally small and you get much less.
29 Dec 18, Mike (New Zealand - sub-tropical climate)
All plants need a good fertiliser base - best to do before planting. Ask at a nursery or Bunnings etc. A good handful spread over a square meter or so - mix it in well a two weeks before planting. Or a good mixture of composted material dug in 2 weeks before.
11 Oct 18, Katherine (New Zealand - temperate climate)
Other than basil is there anything else i can plant with capsicum like lettace and radishes, spring onion? As they are going to be in raised gardens im trying to maximise space
12 Oct 18, Mike (Australia - sub-tropical climate)
Just give them some area to grow - they could shade other plants which could stunt them a bit. Yep go ahead with your suggestions. If you can find shallot bulbs try them - quick and easy to grow. Or just try a succession of the smaller plants you are talking about. i try and plant taller plants in one end of my garden and smaller in the other end - swap next time I plant.
Showing 1 - 10 of 34 comments

Hi Jen, This is a bit late because you are maybe 2 months into your work but I planted a similar garden in raised beds at the start of Sep/16, my first time with most of these plants. Put the strawberries in their own patch because they have different requirements to everything else and will try to invade the surroundings via their runners (stolons). Try to keep stolon production to a minimum unless you want baby plants, in which case let the runners root in separate peat cups and then cut+transplant when they look big and healthy, but not too big because they will punch through the peat and start rooting in the bed where they sit (you can use plastic instead of peat, but the peat ones go straight into the ground when you transplant). I had mediocre fruit production when the strawbs were planted last year but mega crops this year (27 plants). Don't keep them too wet, be on regular lookout for slugs, tear away old leaves which promote rotting and fruit turning, fortnightly seaweed with a splash of fertiliser for the leaves. Rosemary becomes a full-grown bush - put it where you would want a hedge and cut it back twice a year, esp after flowering, to encourage a nice full shape (it will shoot rather vertically otherwise). Rosemary doesn't need much water or fertiliser, I use some slow-release and let rain do the rest except for prolonged dry spells. Zuccs and cukes get quite large, so make sure you allow at least a foot between plants because they come on really quickly from seedling. I got fruit in about 2 months and they are still going now, don't let the fruit sit too long or they can get quite huge quite quickly, tending towards being woody. Zuccs I find can start to yellow when the flower falls off, so keep an eye on that. Also give the cukes some support to climb, otherwise they will just spread like a kind of moppy mess over the garden bed. Basil I did from seeds, they are annuals so just get a packet and put some down about a foot in front of your tomatoes, they do well as companions. The basil can get to about 1-2 feet high if really happy. Capsicums I managed 6 in two rows of 1.2 m, they are quite slender plants and don't need heaps of space like tomatoes or zuccs. These are nearby the tomatoes as they have similar requirements. I also chucked in two chilis that look very happy, consider this as you get capsicum + basil + chili + tomato in one go = a meal waiting. Lastly toms - IMO the most difficult to keep happy. They need more water and fertiliser than the other guys and get wilty more quickly in hot weather. My main tips in my second year with cherry toms is to limit the number of branches you allow, because they will get tall and thick really quickly. I planted mine 1 ft apart but they are a little too close, I'd try 2 ft next time around. You need staking or cages obviously, but in 3 months my toms have gone from 20 cm to about 4 ft, so be prepared for them to outstrip your initial heigh expectations if they are happy. If they are intermediates, they will try to off-shoot at every junction (you can see the baby shoots at the V-intersection between two existing main shoots), so pluck those away everywhere except at the top. You'll also want to thin the tom leaves out because they will get thick and happy and green, but at the expense of fruit. Also remove the lower tom leaves as they can get a bit soggy and disease prone. Buy yourself some garden twine because you'll be at it every week or two to keep the toms supported. I find the toms are quite temperamental, they are prone to yellowing and disease. Keep an eye out for caterpillars, around spring they can come without warning and start putting holes all through your leaves and fruit. I was out daily for about a week in October crushing hundreds of tiny little green caterpillars before they could decimate the plants. Also after excessive water some toms can split, so take those off the vine and refrigerate - eat quickly before they spoil. Any green toms that fall off you can put them next to bananas in the fruit bowl and they'll ripen up nicely. I find my collected unsplit toms last 1-2 weeks in the fruit bowl. Taste is beyond anything in the supermarket! That's my experience, hope it helps. Oh last thing - use good soil to start up, I was filling raised beds so I bought new soil. Next year I will rake in my first year of compost when re-doing the used beds. If you have good soil and it drains, you don't need to do anything else like sand. I used raised beds because I am sitting on clay-type soils with lots of shale under the surface = no good for veggies.

- Tom

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