Category: Orchid Doctor

PH OF WATER: Acidifying Small Quantities

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use phosphoric acid in a sink full of water, adding it drop by drop until the desired and tested-for acidity is reached and before pots with plants are immersed in it. A57-417; use citric acid. A73... Read More

PH OF WATER: Adjusting Ph When Too High

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use dilute sulphuric acid or dilute orthophosphoric acid. A68-719; A78-13 Read More

PH OF WATER: Adjusting with Vinegar

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Do not use vinegar to adjust the pH if it is too high; not recommended because acetates can be toxic to plants. A78-13 Read More

PH OF WATER: Adjustment of Salty Tap Water

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Phosphoric acid used to adjust slightly alkaline pH of 7.5 to acid pH of 5.5 to 6.0, thereby increasing the solubility of tap water to sodium chloride, to prevent crystallization on roots, etc.; ac... Read More

PH OF WATER: Appropriate

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Water can have a pH reading of from 4 to 9; the water of Gainsville FL is close to 8.5 and has been used at the University of Florida without serious problems since Ponce de Leon. A85-471 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

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

PH OF WATER: How to Raise It

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago To raise the pH cf your water supply above 5.0 it is receommended to use sodium hydroxide as the basic solution. A88-35 Read More

PH OF WATER: Its Effect on Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A pH of 5 or lower is satisfactory for watering if the sodium and calcium content are not too high; the facts can be found out from your city authorities; a laboratory analysis will determine if yo... Read More

PH OF WATER: Recommended

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A satisfactory analysis for Somerville,N.J. is a pH of 7.2; it has a water supply like most of N.J.; some supplies are high in soluble salts; 8.4 in North Brunswick,N.J. is good despite the high pH... Read More