Category: Culture

OVERCROWDING: Defined

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago If pots are closer together than the diameter of one of the pots, they are overcrowded and deprived of light, air circulation which constitute the mos t common form of cultural "suicide". AU79-37 Read More

PUMICE: Definition

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A light, spongy stone thrown up by volcanoes. A75-712; RMH Read More

PH OF WATER: Adjusting with Vinegar

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Do not use vinegar to adjust the pH if it is too high; not recommended because acetates can be toxic to plants. A78-13 Read More

PH (GENERAL): Of Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Experiments show that if a recommended medium is chosen the initial pH should cause no concern. Hort. revs. 1983-195 Read More

MOUNTS: Re-use

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago To a tub or pail of water add 1 tablespoon of detergent and sink the mount in it for one week; then sink it for a week in clean water before re-using. A74-772 Read More

LONG-BLOOMING PLANTS: Sophronitis coccinea and Its Hybrids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The species itself can last in bloom for two months; many of its primary hybrids last a month, such as Epiphronitis Pat, Slc. Martha Withner, Brassophronitis Edna, Sc. Boltonii, etc. ODA76(3)-27; D... Read More

LIME: Application to Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A common mineral deficiency is calcium which is usually lacking in commercial fertilizers; it is sometimes supplied by means of limestone or dolomite, whose usual alkalinity is partially offset in ... Read More

LIGHTS, GROWING UNDER: Cattleyas Produce Few Blossoms

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 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: Summertime, Moving Plants Outside

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is not recommended in areas with only three months summer because the advantages are off-set by problems, especially insects, brought back into the lighted area. A82-393It is recommended in the ... Read More

DAY LENGTH: Increased by Artificial Light

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cattleyas may not flower with too much light, under lights and with kitchen lights on full. A86-1031Fall flowering cattleyas most respond to light; increase the day length by turning on lights for ... Read More