Newly Posted Articles

GOLDEN VIGORO: Slow Release Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In a desert area of California from January 1 to July 15 every four weeks, four tablespoons were applied to a 12-inch tub; watered every evening on warm days. OA79-62 Read More

GONGORA GALEATA: Grows Well But Produces No Bloom

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is best grown in a hanging basket in an open medium under moderately cool conditions. A72-151 Read More

GRAMMATOPHYLLUM SPECIOSUM: Of Difficult Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Considerable heat is required; it tolerates both shade and sunlight; requires liberal watering and good drainage with brick pieces; try a medium of 60%, bark, 20% peat moss, 10% redwood bark fiber,... Read More

GRAVEL CULTURE: Under Lights

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Large pea-sized particles of gravel held too much water in the bottom of the pot; half-inch sized granitic and half-inch or more feldspathic pebbles were selected; organic fertilizer preferred; if ... Read More

FERTILIZERS: In Parts Per Million

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Six hundred parts of fertilizer to one million parts water passing through a cymbidium is the maximum. AU79-37 Read More

GREEN SAND: Sand or Sandstone

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Has abundant grains of glauconite which is a hydrous silicate of iron with potassium; occurs especially on the sea bottom; used for paphiopedilum mix additive. A80-37; Ency. Brit. Read More

GREENHOUSE BLANKET: For Heat Conservation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A sheet of plastic drawn horizontally just before sundown across the greenhouse about six feet above the ground to trap the warm air and reduce the cubic area requiring heat; to be withdrawn each s... Read More

GREENHOUSES: A Basic Law in Their Operation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The taller the greenhouse the easier it is to operate. OD67-298 Read More

CYMBIDIUMS: Clones Wrongly Named

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cymbidiums Jean Brummitt AM/RHS, Cym. Pearl 'Magnificum', Cym. Peri 'Rogers', Cym. Trigo 'Royale', Cym. Tapestry 'Zita', among others are almost certainly breeding under false colors. OA79-124 Read More

CYMBIDIUMS: Color Control in Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Production of red pigments in the bud stage is affected by light intensity; high light causes intensity of color in pinks, pink blushing in whites, muddiness in greens; controls given for whites, i... Read More