Newly Posted Articles

DE-IONIZERS: To Remove Sodium From Water

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 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 over 7 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 over 7 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 over 7 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 over 7 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 over 7 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 over 7 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 over 7 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 over 7 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 over 7 years ago Both oncidiums and phalaenopsis require a cool treatment of several weeks to promote flowering. A80-960 Read More