How to Grow Chillies in Pots

Updated June 2026

A chilli plant covered in red and green fruit in a pot

Compact, heat-loving and generous, chillies are made for a sunny pot. Here is how to crop them well.

New Zealand note: Chillies want New Zealand's warmest corner. Overwinter the pot inside and it fruits weeks earlier next season.

Chillies are one of the most rewarding container crops. They are naturally compact, crop heavily for their size, look ornamental covered in fruit, and in a pot you can move them to chase the sun or shelter them to overwinter. A single plant gives more chillies than most households can use.

Pot and position

A 10 to 20 litre pot suits most chillies, with smaller ornamental types happy in less. Good drainage is essential. Chillies are sun and heat lovers, so give them the warmest, sunniest spot you have, at least six hours. A hot, sheltered corner or against a sunny wall is ideal.

Soil, water and feed

Use a quality free-draining potting mix with compost. Water when the top of the mix begins to dry, chillies dislike constantly wet feet and a little stress can even boost heat, but do not let them wilt while flowering or they will drop their flowers. Feed every week or two once flowering, with a higher-potassium feed (a tomato fertiliser is ideal) to push fruit rather than leaf.

Help fruit set: chillies are self-pollinating but need movement to shed pollen. On a still balcony, give the flowering plant a gentle daily tap or shake. Heat above the mid-30s and cold nights both cause flower drop, so shade in extreme heat.

Harvest and heat

Pick chillies green or leave them to ripen to red, orange or yellow, riper fruit is hotter and sweeter. Regular picking encourages more flowers and fruit. Wear gloves with hot types and wash up well afterwards.

Overwintering

Chillies are perennial and a pot lets you keep them for years. In cooler areas, move the pot to a warm, sheltered or indoor spot over winter, cut back watering, and the plant will reshoot and crop earlier and harder the next season. A two or three year old chilli plant is a serious producer.

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Frequently Asked Questions

What size pot for a chilli plant?

A 10 to 20 litre pot suits most chillies, with small ornamental types happy in less and large bushy varieties wanting more. Good drainage is essential, as chillies dislike constantly wet roots.

How much sun do potted chillies need?

At least six hours of direct sun, and the more heat the better. Give them the warmest, most sheltered sunny spot you have, such as against a sunny wall, for the heaviest crop.

Why is my potted chilli dropping flowers?

Flower drop is caused by heat above the mid-30s, cold nights, water stress or poor pollination. Shade in extreme heat, keep watering even while flowering, and tap the plant daily to spread pollen in still air.

Can chillies survive winter in a pot?

Yes. Chillies are perennial, so in cooler areas move the pot somewhere warm and sheltered over winter and cut back watering. The plant reshoots in spring and crops earlier and harder, getting more productive each year.

Do chillies get hotter if you stress them?

A little water stress and full heat can increase the pungency of the fruit, and riper fruit is hotter than green. But do not stress a plant so hard it drops flowers, the gain in heat is not worth losing the crop.

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