Category: Orchid Doctor

BLUE METAL: Ingredient in Potting Mixes

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Used in Australia, described as an essential part of a mix: 4pts. bark to lpt. blue metal (not otherwise identified, presumably an aggregate); to each four gallons of mix add three gallons of water... Read More

BOG ORCHIDS: How to Grow in Containers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Medium is 5 pts. perlite, 3 pts. vermiculite, 2 pts. sphagnum peat moss; bits of charcoal on top; plants at surface of medium; top with live sphagnum moss; refer to A79-556+ Read More

BONE MEAL: A Classic Fertilizer Feed

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A source of phosphorous and a small amount of nitrogen; very slow release material; not commonly used; has little effect as a top dressing; superphosphate is cheaper and more easily obtainable. A70... Read More

BONE MEAL: As Pot Surface Dressing, Is it Useful?

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It has no organic potash. A79-370 Read More

BOOKS: Recommended as Best General References for Species

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 1. Roy. Hort. Soc. Dictionary of gardening. (4 v.,1951; lists 3,216 species) the best place to start; 2. A.D.Hawkes' Encyclopaedia of cultivated orchids . (1965; has only 2,192 species, plus a lot ... Read More

BORDEAUX MIXTURE: Effectiveness

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Is not very effective against bacterial leaf rot. A74-792 Read More

BORDEAUX MIXTURE: In Greenhouses

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Do not use it in a greenhouse. A79-674 Read More

BORIC ACID: For Stunted Cattleya Growth

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use 1/2 ounce in a gallon of water and of that take 2 tablespoons and add to 1 gallon of normal fertilizer; user delighted with results. A73-914 Read More

BOTANICALS: Definition

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago "A species orchid which, because of some of its characteristics not appealing to the commercial cut-flower trade, or not appearing to be useful, has not been hybridized yet or which has not yet bee... Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Various means can be used: tufa, a limestone form, can be added to paphiopedilums from limestone cliffs; bark composts acidify with age; peatmoss, pine needles, oak leaves in the mix produce acidit... Read More