LIME: Pointers About it

Culture Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin over 8 years ago.

Article Blog   Article Index
Composted fertilizers never contain it; it is always added to peat mixes in order to supply missing calcium; Rockwool and Oasis have no buffering ability for lime; the deficit of Calcium is revealed in weak leaves, easily broken spikes, discoloration of flowers; calcium develops firm cell walls. OA87-201
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Lime

Lime Comments
LIME: Added to Potting Mix To get the potting mix to 6pH add approximately 20 lbs. of lime per cu.yd. of bark; use dolomite lime or oyster shell flour, or even better, half-and-half of each. A071-29 0
LIME: Application to Plants A common mineral deficiency is calcium which is usually lacking in commercial fertilizers; it is sometimes supplied by means of limestone or dolomite, whose usual alkalinity is partially offset in the potting mix by acidic components like redwood; gypsum is a possible means to a solution if lime is lacking. OIE85Jy-13 0
LIME: Dolomite, Its Characteristics A mined, fossil-like form contains both calcium carbonate and magnesium; it adjusts the pH of bark; usually added with oyster shell because the two are better than one alone; beneficial in areas where the water is high in sodium. C74-51It does not react as fast as hydrated lime; it contains magnesium. A61-735 0
LIME: In Bark Media Lack of it in bark leads to greater acidity in the mix; it is a common almost universal practice (1) to add lime to bark potting mixes; can be added as dolomite to the surface of the pot mix, or ground oyster shell or hydrated lime. OA87-205 0
LIME: Oyster Shell, Its Characteristics It is calcium carbonate lime; ground up shells comes in coarse type for chicken scratch or flour type used by many orchid growers. C74-51 0
LIME WATER: Recipe One tsp. of hydrated lime is dissolved in a gallon of water; may be used to adjust the pH of potting media, upwards. A79-898; 1/2 tsp. limestone per 6 inch pot raises pH 5.0 up. A80-739 0

New Topics

  1. Glenda Ratliff asked question Issue with Blc. Ben O'Neil "Jubilee in category General Discussion
  2. Debbie Chase asked question Help identifying this orchid. in category General Discussion
  3. Harry Koplin asked question Snow birds dilemma. in category General Discussion
  4. didier fouquet asked question Looking to import Vanilla Pompona schiede in category General Discussion
  5. Terre Moore asked question Orchids not in database in category General Discussion
Ask a Question

Start a Topic

New Comments

  1. John Varigos commented on orchid Bulb. schwarzii
  2. Linda Hartman commented on topic "Issue with Blc. Ben O'Neil "Jubilee" by Glenda Ratliff
  3. Henry Shaw commented on member plant Ons. Catatante 'Los Roble' by Henry Shaw
  4. Mary Lane commented on member plant Den. Tianmu Canary by Terre Moore
  5. Pamela Stegmaier commented on member plant Rlc. Esther Costa var. Orange Fantasy by Mary Lane
  6. Mary Lane commented on member plant Rth. Linda Vee var. Kira - Cluster Orange by Mary Lane
  7. William Gorski commented on topic "Looking to purchase" by Judy Rutz
  8. Robert Rand commented on member plant Cattlianthe Auri Guis by Robert Rand
  9. Julie Ellner commented on member plant Phal. amabilis var. formosanum by Vickie Seibert
  10. Julie Ellner commented on member plant Rlc. Green Dragoon 'Mendenhall' by Jeanne Uzar Hudson
  11. Barry J Silver commented on orchid Lyon. SunCoast Pink Passion
  12. Carol Holdren commented on topic "Phalaenopsis William Kistler?" by Nicholas Filannino
  13. Carol Holdren commented on orchid Colm. Eric Gabriel Heines
  14. Carol Holdren commented on topic "Cattleya little susie" by Juliann Eckhard
  15. Carol Holdren commented on member plant Bc. Morning Glory by Chris Siolo
  16. R .Benson commented on member plant Kir. New Hybrid (Fred Clarke) SVO9831 by R .Benson
  17. Carol Holdren commented on topic "Blooming Stenglottis Venus “jamboree “" by John Urey
  18. Jeanne Uzar Hudson commented on member plant Lc. Canhamiana var. coerulea 'Cobalt' by Jeanne Uzar Hudson
  19. Jeanne Uzar Hudson commented on member plant Sns. gemmata by Jeanne Uzar Hudson
  20. Stefan Neher commented on topic "Orchid roots .com site?" by Mary Lane