OSMUNDA: Does it Need Fertilizer?

Culture Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin over 4 years ago.

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Cattleyas and phalaenopsis plants grown in it get most if not all the nutrients they need, without fertilizer; do not use more than one teaspoon to five gals, water with a 20-20-20 or other formula, and use only once a month. A66-1025
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Osmunda Comments
OSMUNDA: Aerial Root Mass of Two Common Ferns Osmunda regalis and O. cinnamomea; success can be had by taking full advantage of the good nutritive qualities while lessening its water-holding capacity; becoming expensive. A73-875 0
OSMUNDA: As Potting Medium It is derived from three ferns widely distributed in the U.S. and Canada, provides nutrients needed by the plants; lasts long, aereates well, is costly to buy, hard to work with, is scarce. A86-497 0
OSMUNDA: Chemical Analysis (typical) Moisture 12%, pH 4.3; ash 5.5%, nitrogen forms 0.14%, phosphorous 0.06%, potassium 0.57%, calcium 0.4%, magnesium 0.3%, sulfur 0.16% and silica 3.0%. A65-832 0
OSMUNDA: Digging, Preparing and Using Osmunda regalis, 0. Claytonia, and 0. cinnamomea are native to northern United States and Canada; dig large plants with 20 inch circumference of soil six inches deep; wash it thoroughly in a lake or lots of water remove the hard woody core, cut the rest into smaller pieces. Ca8l(2)-35 0
OSMUNDA: Importation Into Great Britain This has been banned. OR87-237 0
OSMUNDA: Its Qualities Many growers use it for all genera; it should be relatively strong in fiber quality, not decaying and soft; it has largely been replaced by bark. A74-114 0
OSMUNDA: Preparation for Use It grows in swamps; grub out the roots of the fern; dry them and remove soil and debris; sterilize with methyl bromide, to kill weed seeds, but handle with care; store in burlap bags; for use, soak it in water and cut into desired size for potting. A61-659; A61-823 0
OSMUNDA: The Ferns Of the 13 native to North America, three grow in Canada; descriptions, growing areas,etc. refer to Ca-81(3)-30; digging up, preparation fcr potting material, and use as a potting medium. Ca8l(3)-35 0
OSMUNDA: Treatment in the Pot Drench with 4% formalin to kill Fusarium spores. A86-74 0

New Topics

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  4. Darrin Duling asked question Phragmipedium Cape Sunset or Eric Young? in category Paph Alliance
  5. Oliver Quin Surco started topic Need ID, Please in category General Discussion

New Comments

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  5. Tatjana Opekunova commented on article "CATTLEYAS: Reasons for Non-flowering" by Robert M. [Bert] Hamilton (Compiler)
  6. Carol Holdren commented on member plant Zygopetalum var. Big Red One by Wyatt Parker
  7. Carol Holdren commented on topic "Need ID, Please" by Oliver Quin Surco
  8. Sara D commented on member plant Phal. bellina var. Coerulea by Sara D
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