Category: Culture

NUTRITION: Of Three Orchid Genera

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago N, P, K. and Mg.; scientific studies show cymbidiums and phalaenopsis attain optimal growth at lOOppm. of N., 50 to 100 ppm. of K., and 25ppm. of Mg. and for cattleyas the optimal at 50ppm. each of... Read More

NUTRITION: In Tropical Forests

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Distribution and density of plants, the role of birds and other animals, nutrition from everything possible -- litter, rainfall, throughfall and stemflow; role of epyphylls or run-off from other pl... Read More

OAK BARK: A Preferred Substrate

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In the natural habitat its corrugated bark supports orchid life; in England oak trees contain gallic and ellagic acids which are growth inhibitors, except for Quercus castonia and Q. vicentensis, b... Read More

OAK LEAVES: With Bark as Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Gather the leaves in the fall, store them dry until brittle, break them by hand into pieces one inch or less, add 337, to bark mix with limestone at half a pound to a cubic foot. A81-1311 Read More

OASIS: As Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A patented material made of granulated foam and dolomite lime, proven by wide use in Holland and Belgium, it needs a balanced fertilizer such as 20-20-20. OA82-8; A86-500 Read More

OASIS: Used in Holland

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is broken up into pieces about one-half inch in size; roots of cymbidiums encompass the medium into a root-ball mass. OA84-12; OIE86Sept-10 Read More

OASIS: Plastic Foam Material

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Widely used in Holland as a potting medium; water-absorbent it does not decay and can be re-used after sterilization; it should be leached before use and it requires lime to counteract its natural ... Read More

ORCHID CHIPS: Styrofoam

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 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 ... Read More

ORCHID GROWERS: Ten Commandments for Them

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 1.Learn basic culture. 2.Provide proper facilities. 3.Watch for creeping obsolescence. 4.Learn about diseases and pests . 5.Buy good stock . 6.Learn the names and watch the labeling. 7.Be aware of ... Read More

OSMOCOTE: For Bark Mixes

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago As bark takes up nitrogen, a top dressing at repotting time to supply nitrogen cn a delayed basis is recommended. A65-842 Read More