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Guide to home grown Chillies


Neville Passmore


3 February 2020

With origins in the northern parts of South America, chillies are well suited to summer conditions in Perth

The fruits seem to have found a place in just about every cuisine and there are thousands of varieties from which to choose, all belonging to the capsicum genus. They're members of the solanaceae family, along with cousins potatoes, eggplants and tomatoes.

There are a small number of staple varieties that are easy to find and these can get you started on the chilli odyssey, if this is where you are heading. The heat varies from sweet nothing through to incendiary. All chillies are edible, even Purple Explosion, which is normally grown as an ornamental variety.

Chillies are short-lived perennials in subtropical and tropical areas but are normally grown as annuals in colder regions. Growth and fruiting slows down in winter to the point where some cold-sensitive varieties can die. In Perth, it is possible to keep all varieties for more than a year, with careful treatment of the more sensitive types. Nurse them through by putting in a warm, sheltered spot and protect from the elements. Often it's best to start again in the new season, in spring, with new plants.   


Most chillies grow best in slightly limey soil; however, they are very tolerant of different soil types. Chillies like a warm, sunny spot, well-drained soil and regular watering during dry weather.

The best time to germinate seeds is in late spring around October or even November. Plant out seedlings from November on.


If growing in pots or tubs, choose Baileys Veg & Herb Planting Mix. If you are planting in the garden then amend the soil with generous quantities of Baileys Clay & Compost (for sandy soils) or Soil Improver Plus. Add Baileys Clay & Compost to build up fertility and water holding capacity of sandy soils, about 1 bag per square metre.

While chillies like full sun it's a good idea to give then some protection through our blazing summers. Growing in pots is a great way to go and gives you the ability to move then throughout the seasons. Single plants are best in a 200 mm pot, and two or three can be grown in a 30 cm diameter tub. Baileys Veg & Herb Planting Mix is formulated for WA conditions and is my recommendation for growing all vegetables and herbs including chillies, it supplies all nutrients the plant will need for 6 months. If you're growing chillies in pots, simply replace the potting mix each time you replant.