Category: Culture

WARDIAN CASES: Construction and Operation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Large enough for 21 selected plants, cultivated in a "plantarium", with comments and success rate. OR81-350 Read More

WARDIAN CASES: Indoor Orchid House

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Sixty plants grown in a space 30 in. by 20 in. by 30 in. high, with a humidity tray, a soil-heating cable, enclosing clear shower-curtain and polyethylene top, a socket grow-lamp and an outside win... Read More

WARDIAN CASES: Utility

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is considered by many to be "too close" for best growing, except for the "Jewel" orchids such as Ludisia discolor, and others, or some very tropical terrestrials. A86-923 Read More

WATER (GENERAL): Alkaline From Well

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago So long as there are no excessive salts content, it can range from a pH of 4 to 9, but water with a high calcium content should be kept off the leaves. A83-816 Read More

WATER (GENERAL): Alkaline From a Well

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago If your water tests 470 prpm soluble minerals, you will gradually kill all your plants; "softened" water is worse; the pH can be tested with kits available from tropical fish stores, or with test t... Read More

WATER (GENERAL): All-wet Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago When some plant supports sagged the pots were lowered so the bottoms were in 1.25 inches of water continuously and they developed perfectly so were not damaged by the immersion. AU85(l)-35 Read More

WATER (GENERAL): Best Range

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The pH range should be 5 to 7 (or 4 to 9 for cattleyas, and the soluble salts should be less than 500ppm. A87-515 Read More

WATER (GENERAL): To Change the Ph Level

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago If the reading is below 5.0 it can be raised by adding sodium hydroxide; a local water conditioning company could advise. A88-35 Read More

WATER (GENERAL): Cold Weather Means Less Water

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Plant metabolism is reduced in winter to low levels and less water is required. F81-17 Read More

WATER (GENERAL): Contains 11 Grains of Sodium Per Gallon

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago But at recharging the same water contains 2 grains, which is equal to 34 ppm, a small amount for watering. A81-1093 Read More