How cold can a pepper plant get before it dies?

Most pepper plants are considered tender annuals and are native to tropical and subtropical regions. Pepper plants can be damaged or killed by cold temperatures, depending on the variety and the duration of the cold.

Generally, pepper plants can tolerate temperatures down to around 55°F (13°C) for a short period of time. However, prolonged exposure to temperatures below 50°F (10°C) can cause damage to the plant, leading to stunted growth, wilting, leaf drop, and eventually death.

Some pepper varieties, such as the cayenne pepper (Capsicum annuum var. cayennense) and the habanero pepper (Capsicum chinense), are more cold-tolerant and can withstand temperatures down to around 45°F (7°C) for a short period.

To protect pepper plants from cold temperatures, it is recommended to grow them in a greenhouse or indoor garden during the colder months. Mulching around the base of the plants can also help to insulate the roots and protect them from frost.