Newly Posted Articles

DE-IONIZERS: To Remove Sodium From Water

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The best solution is a de-ionizer machine. OD76-122 Read More

CYMBIDIUMS: Summer Growing

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Do not keep them in a hot enclosed space; they do better in an airy,partially shaded outdoor location. OA79-123; commercial growers do differently in the north and keep their plants in the greenhou... Read More

CYMBIDIUMS: Symptoms of Magnesium Deficiency

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Causes a yellowing of plants; try adding Epsom salts to the nitrogen-rich fertilizer. OD71-278 Read More

CYMBIDIUMS: Symptoms of Potassium Deficiency

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Leaves of older growths tend to turn yellow, starting from the tip and working toward the pseudobulb. OD71-278 Read More

CYMBIDIUMS: Temperature to Set Buds

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The low temperature does not matter, it's the swing of about lO dC from day to night, just as the bulb is about to mature that matters. AU84-278 Read More

COMPOST: Organisms in Form of Tiny Yellowish Spheres Appear

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They are fungus fruiting bodies or fungus exudates; not harmful. A73-155 Read More

CROWDING PLANTS: Do Not Do it

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Air circulation is very important in the growth process. OD72-227 Read More

HUMIDITY: For Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Set the humidifier at 70% relative humidity if the humidistat is reliable, and sensitive; set at 60% to 70% on one that is not. A65-438; phalaenopsis and cattleyas. A80-630 Read More

ROCKWOOL: As Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is inert, a spun rock, like fiberglass, it comes in three grades -- fine, medium, coarse -- and in both absorbent and non-absorbent types, including Grodan horticultural grade, available in 3 or... Read More

BRACTS ON SPIKES: But Flower Buds Don't Show There

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Both oncidiums and phalaenopsis require a cool treatment of several weeks to promote flowering. A80-960 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)