The Orchid Doctor Articles under the Heading Bark, Pine

Bark, Pine Comments
BARK, PINE: Potting Medium A good common denominator bark for most pot- ting in spite of adverse publicity; does not contain turpentine or some other noxious ingredients. A87-1039It has been used, but is not as popular as fir bark or other media; it can be prepared at home by crushing and screening for desired sizes. A60-924 0
BARK, PINE: Potting Medium for Cattleyas It should be thick and free of pitch; it is dried, then ground into pieces one-quarter inch by three-quarter inch; can be used by itself or with peat moss, perlite, or redwood fiber. A72-412 0
BARK, PINE: Research in Australia Used in potting mixes; as substitute for peat moss; advantages and disadvantages given; treatment for toxins is to compost it moist for eight weeks; suggested mixes: 2 pts bark, 1 pt. brown coal, coarse sand or scoria; or, 1 pt. bark, 1 coarse sand, 1 brown coal or scoria, etc. AU79-51 0
BARK, PINE: Species and Characteristics It is hard, gritty, slow to break down because of the high resin content; sponge-like, holds water without getting water-logged; depends on which conifer is used and the age of the tree; Pinus maritima and P. Corsica are best in Europe. OR74-71 0

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