Category: Culture

PH OF WATER: Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The best pH for them is not so much a matter of pH as to make sure the water is low in salt content. A70-725Their requirement is around 7.0. A78-713 Read More

POTS (GENERAL): Washing Them

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Scrape pots free of loose dirt; soak them overnight in 10 gals, water to which has been added one cup of citric acid; then scrub them in another 10 gals, to which has been added one-half gal. Cloro... Read More

POTS (GENERAL): Soak in Clorox

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Make a solution of one part Clorox to four parts water; clean pots well of loose dirt before soaking one-half hour; follow with a washing, a thorough drying and a last rinse before using. A69-130; ... Read More

POTS, CLAY: Sterilizing

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Bake them in a ceramics kiln; you need only 350 to 400 deg. F. to sterilize them. A70-427Boiling them subjects them at best to only 212 deg. F.; best to bake them to 400 deg.F. for an hour. A72-332... Read More

POTS, PLASTIC: Plastic and Styrofoam Pots Washed and Sunned to Eliminate Virus

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It does no good whatever; the pots should be soaked for 10 minutes in Clorox solution 1:5. A73-709 Read More

POTS, PLASTIC: Soaking to Kill Virus

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use Clorox one part to water nine parts; clean the pots of loose dirt before soaking because dirt impairs the viricidal properties of the Clorox. A72-1100 Read More

POTS, PLASTIC: Transparent Type

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Promotes algae growth inside; it is an advantage to see root growth inside but the light transmission leads to growth of algae and moss inside the pot so the advantage is lost. OR74-77; if the tran... Read More

POTS, PLASTIC: Transparent

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Recommended as the solution to the inspection of root development to provide for the key cultural element -- optimum watering; refer to A60-520+ Read More

PH OF WATER: Citric Acid Used

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Local water supply was highly alkaline, pH of 10.5, and was lowered to 5.5 twice weekly using a Hydromix proportioning unit; a drop or two of food coloring was also added. A72-1003 Read More

FERTILIZERS: Organic or Inorganic

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Bacterial activity is low at 50 deg.F. (10 deg.C.) so it is better to use inorganic types of fertilizer in cold weather;use an organic in warmer temperatures. AU73-185Both can be used; liquid organ... Read More

Ailments

(931 articles)

Angraecoids

(41 articles)

Announcements

(4 articles)

Beginners

(21 articles)

Book Review

(4 articles)

Bulbophyllums

(2 articles)

Cattleya Alliance

(95 articles)

Conservation

(16 articles)

Culture

(1363 articles)

Curiosity

(49 articles)

Cymbidiums

(163 articles)

Dendrobiums

(29 articles)

General Discussion

(3 articles)

Oncidium Alliance

(64 articles)

Orchid Doctor

(3579 articles)

OrchidWiz

(27 articles)

Other Genera

(12 articles)

Paph Alliance

(78 articles)

Phalaenopsis

(83 articles)

Pleurothallids

(1 articles)

Propagation

(184 articles)

Scientific

(4 articles)

Site Navigation

(2 articles)

Species

(62 articles)

Travelogue

(2 articles)

Vandaceous

(26 articles)