Newly Posted Articles

CLASSIFICATION: Why it Keeps Changing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For the scientific reasons, refer to W11-153 Read More

CLAY, CALCINED: Haydite

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago As a potting medium for angraecums, the seedlings can be started in it and grown on into a ten-inch pot in about five years and they flower well. Ca84Spring-3 Read More

CLAY, EXPANDED: As Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is excellent for Cattleya labiata but requires constant watering and periodical chemical fertilization. OD87-147 Read More

SEED: Cattleya

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago How to grow a pod removed 80 days after pollination: use the usual green pod technique. A71-609 Read More

POTASSIUM: Test Feedings

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It had virtually no effect on the growth of cymbidiums, cattleyas or phalaenopsis at levels of 50ppm., 100 ppm., or 200 ppm. OA79-129 Read More

LIGHT, NATURAL: Morning Light Preference Shown by Plants in Natural Habitat

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is apparent when photographing plants on trees, they are located on the east side; in the greenhouse the best growing light is the morning light. A73-683; A73-781 Read More

FLOWERS: After Cutting

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Stored below 50 Deg.F. without a dehydrator and fan they are very susceptible to fungus; this is made worse when they are stored with roses or carnations; cut small flowers such as phalaenopsis fro... Read More

POTS, CLAY: Sterilizing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Bake them in a ceramics kiln; you need only 350 to 400 deg. F. to sterilize them. A70-427Boiling them subjects them at best to only 212 deg. F.; best to bake them to 400 deg.F. for an hour. A72-332... Read More

POTS, CLAY: Sterilizing Them

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Both the pots and the compost can be put in hot water at 72 dC (about 160 dF) for ten minutes then cooled before using; this resulted in better growth than by using fungicides. AU81-20Wire-brush th... Read More

LIME: Oyster Shell, Its Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is calcium carbonate lime; ground up shells comes in coarse type for chicken scratch or flour type used by many orchid growers. C74-51 Read More