Chilli plants grow into small to medium sized bushes from knee high to two metres/six feet tall. How big they get depends on the species and variety.

Chilli plants love heat. They are closely related to capsicums/bell peppers and also related to tomatoes (they are in the same family, the solanaceae), but chillies prefer their growing conditions a lot hotter.

Chilli seeds need 20°C/68°F to germinate, and it should be 86°F or more for the fruit to ripen. Night temperatures should not drop below 60°F, at least not on a regular basis. The odd cool spell is ok.