Category: Orchid Doctor

LIGHTS, GROWING UNDER: Cattleyas Produce Few Blossoms

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A problem under lights; lower the minimum temperature to 62 dF at night and illuminate them longer to 13 hours. A81-393 Read More

LIGHTS, GROWING UNDER: Comparison of Lamps

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 500 paphiopedilums grown under fluorescent lamps and the same number grown under high-pressure sodium lamps (SON/T) for nine months indicated the latter were better; also cheaper to install; they a... Read More

LIGHTS, GROWING UNDER: Continuous Light

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Non-stop light is wasteful; up to 16 or 18 hours is beneficial but after that the plants do not benefit; in winter in southern areas street plants growing under lamp standards show stress because t... Read More

LIGHTS, GROWING UNDER: Cultural Practices

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For pointers on growing plants under fluorescent lamps; they require certain conditions and treatment which are set out in Read More

LIGHTS, GROWING UNDER: Gas in the Home

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Unadjusted pilot lights can do pollution damage to phalaenopsis flowers. A86-1030 Read More

LIGHTS, GROWING UNDER: Genera Recommended

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It includes everything almost except cymbidiums, through some species are slow to flower, and the size of many species makes accommodation under lights almost impossible. A82-392 Read More

LIGHTS, GROWING UNDER: Hours of Illumination

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago From March to August provide 16 hours daily; January-February, and September-October 15 hours; and for November-December, 14 hours; results in an "early" spring. A75-30 Read More

LIGHTS, GROWING UNDER: In a Weather-controlled Area

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Instructions on how to construct; list of supplies needed; kinds of controls required and method of installation; for details refer to A70-581+ Read More

LIGHTS, GROWING UNDER: In Living Area of the Home

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The main problem is one of water access and disposal; solution to the problem; 48 sq.ft. of growing space; refer to A75-985+ 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