Temperature: 

•  Grows under wide range of temperatures; 
•  Requires a long and warm growing season;
•  Requires 14 to 16oC for germination;
•  Low temperatures retard germination and growth of plants, and   lengthens flowering.
•  High temperatures result in the best performance in terms of length of the stem, number of flowers and number of pods;
•  Maximum number of pods will be at mean temperatures of 23oC.