HK35 was the first commercial hybrid Pleurotus strain to be developed. It is an excellent combination of high yielding and high quality Pleurotus strains. Currently it is the most widely grown exotic strain on the European market. It can be grown all year round. The stem connects to the cap in a lateral position and is medium in length. With the addition of more fresh air the stem will become shorter. Depending on the temperature, the colour of the cap varies from dark grey to light grey. HK35 is a high yielding strain that is tolerant to a range of growing conditions, it is easy to crop and produces good quality over several flushes.