The Orchid Doctor Articles under the Heading Orchid Chips

Orchid Chips Comments
ORCHID CHIPS: Potting Medium A European plastic material made from polystyrene (Styropor or Polystyro 1) prepared for horticultural purposes; looks like strips of paste; retains on surface three to four times its weight in water; non-rotting; refer to OR76-5; OR76-230 0
ORCHID CHIPS: Styrofoam A potting mix, with specially textured surface to increase water retention, used in Great Britain, not available in the U.S.A., but polystyrene ground up in a meat-grinder and used 50/50 with bark in a potting mix produced superior growth rates. OA82-7; OA86-172 0

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