Newly Posted Articles

BARK, REDWOOD: Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Shredded bark used as insulation material and sold as Palco Wool was treated with fire-retardant ammonium phosphate which caused remarkable growth of plants. A87-1041 Read More

MERCURY VAPOR LAMPS: Rated 175 Watt Bulbs

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago These are of doubtful value for culture because they generate heat and can burn the plants. A82-392 Read More

FERTILIZERS: Element Requirements for Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago N -- 50 ppm., P -- 50 ppm., K -- 50 ppm., plus Magnesium Sulphate -- 50 ppm. AU82-98 Read More

FERTILIZERS: For Heavy Feeders

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Cymbidiums, lycastes, softcane dendrobiums, zygopetalums are among the heavy feeders and require more fertilizer. AU84-203 Read More

COOL-GROWING PLANTS: Laelia Crosses

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago To grow with cymbidiums; try primary and second ary crosses of Laelia anceps and other cool growing Mexican laelias. OA78-17 Read More

COOL-GROWING PLANTS: Low-energy Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago List of about 60 given; plants which will stand a few degrees of frost and grow in a greenhouse with controls set for a minimum of 40 deg.F. A78-39+ Read More

PH (GENERAL): Of Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago A pH8 to 9 of the 30-10-10 fertilizer is natural and should not be adjusted because the alkaline state changes to the acidic side when used by the plant. A81-27 Read More

COOL-GROWING PLANTS: Other Genera

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Brassolaelia Sea Urchin is reliable in cool areas; Epidendrum radicans and other epidendrums do well with cymbidiums; Odontoglossum grande, Odm. excavatum, Odm. bictoniense, Eulophia krebsii Vanda ... Read More

OSMOCOTE: 14-14-14 in Pots Outdoors

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago After use only beneficial effects have been observed in two years; during rain it dissolves. OIE85-8 Read More

BENLATE: On Paphiopedilums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Caused production of infertile pollen. A79-898 Read More