27+ Fir Bark For Orchids. Clean, heat treated, sterilized douglas fir bark that has been high graded and sized to meet the highest standards of orchid growers today. No fir bark exists in the imperial orchid mixes.
Approximately 1/8 (size varies slightly).
These small pieces of bark are smaller than the ones in stores so they are easier to work with and the plants seem to adjust quicker this too. It is a combination of specifically sized and graded grower's choice western fir bark. It is also popular with bonsai growers. A wide variety of bark for orchids options are available there are 43 suppliers who sells bark for orchids on alibaba.com, mainly located in asia.