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Growing guide · Home growing: windowsill, balcony and terrace

Cayenne pepper

Capsicum annuum (cayenne)

A long, thin, hot chilli used fresh or dried and powdered; the base of many hot sauces.

Key figures

ItemValueSource
Heat30,000–50,000 SHU[3][1]
Plant sizefruit about 1.3 × 7.5 cm (0.5 × 3 in.)[3]
Sowing / plantingindoors 6–8 weeks before the last frost[4]
Germination temperatureabout 21 °C (70 °F)[1]
Temperaturegrowth 21–27 °C by day, 16–21 °C at night (70–80 °F / 60–70 °F)[3]
pH6.0–7.0[3]

The full guide (care, pests, beginner and professional tips) is currently in Finnish. The figures above are the same and come from the sources below.

These are general guidelines. Always check the variety, seed packet or fertiliser instructions and current regulations.

Sources

  1. RHS: Chilli peppers – grow your own
  2. Martat: Paprikan kasvatus
  3. Oregon State University Extension: Grow your own peppers (EC 1227, 2023)
  4. NC State Extension Plant Toolbox: Capsicum annuum