Category: Culture

HEATERS: Wood-burning Stoves

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They are not recommended because they ruin most orchids unless the draft is fully open at all times to discharge fumes into the neighbour's back yard. A81-526 Read More

HEATING: Costs and How to Reduce Them

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Adopt partial underground construction of greenhouses, lots of insulation, a southern exposure, double glazing with plastic film, airtightness, the installation of passive heat storers (steel drums... Read More

HEATING: Emergency

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Water will flow till it freezes and as it freezes it releases heat, so saturate the greenhouse with water when the emergency heater conks out on the coldest night; keep it going until heating is re... Read More

HEATING: Infra-red Heat

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In greenhouses it promotes vigor in leaves and roots and flowers at an economical cost; the units use propane/butane, or natural gas; for details refer to A85-222 Read More

HEATING: Infrared

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago This type heats plants directly instead of the surrounding air; growth doubled and root vigor increased dramatically in one installation; gas consumption is one-tenth of what was used in summer (Ca... Read More

HEATING CABLES: Use for

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Try growing mature Doritaenopsis and Phalaenopsis in the greenhouse on one for better performance; it should be linked to a thermostat control. OIE85Jy-15; RMH Read More

HORMONES: For Keikis

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Used for stimulating dormant buds into growth as new plants or roots; sources and prices. A85-362 Read More

HORMONES: To Produce Small Numbers of Mericlones of Phalaenopsis

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Hormonal preparations involving application of a cytokenin, which acts as a cell-divider; a commercial paste is sold as Keikigrow; refer to A80-1123 Read More

HOT TUBS: Area Used for Growing

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Chlorine or bromine used to sanitize hot tubs should not harm plants in the area; people grow them around swimming pools which emit chlorine fumes; do not close-in the area. A84-819 Read More

HOT WEATHER: Treatment of Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In unusually hot summer weather the things to do to help plants : sprinkle or syringe (do not water) the leaves to reduce their temperature and increase the humidity around them; shade them more da... Read More