What are the biological characteristics of Codonopsis pilosula? A comprehensive guide
Codonopsis pilosula has strong adaptability and prefers a mild, cool climate. Its requirements for water, temperature, and sunlight differ at different growth stages. The suitable temperature for seed germination is 18-20°C. Seedlings prefer shade, while mature plants prefer light. It can tolerate high temperatures of 33°C and can also overwinter safely at -30°C. Root rot is prone to occur under poor drainage and high temperature and humidity conditions.
Codonopsis pilosula is a deep-rooted plant, and the ideal soil pH is 6.5-7.0. It is not suitable for continuous cropping, and generally should be replanted after an interval of 3-4 years. The previous crop is best as legumes or grasses.
Seeds produced by 3-year-old Codonopsis pilosula plants have a high germination rate, generally above 90%. Storage at room temperature for one year reduces the germination rate. If the seeds are exposed to smoke or come into contact with table salt during storage, they will lose their germination capacity.