VANDAS: Minimum Optimums

Orchid Doctor Vandaceous

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin about 7 years ago.

Article Blog   Article Index
55 to 65 deg.F. nights; 40 to 50% relative humidity; 4,000fc. winter and 8,000fc. summer. AU71-135; temperatures. OR80-118+
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Vandas

Vandas Comments
VANDAS: Air-layering Cut around the stem into live tissue; dust with Rootone, and place wet sphagnum over it, cover with polyethylene and secure with elastic bands; wait till roots are 1.5 inches, cut off and pot. F70-117 0
VANDAS: Crown Rot During rainy weather in Florida additional protection is advised; deposit a small teaspoonful of Captan in the uppermost leaf axils and the crown; with each watering or rain a deposit of Captan will be washed down and protect susceptible points. F76-134 0
VANDAS: In Baskets Because "potting on" with them can be a problem, start with three inch baskets for seedlings and when necessary move it whole into a four inch or five inch size, and continue this system (move both plant and basket) the roots are not damaged nor set back; fill in the spaces with pieces of charcoal; Florida. F86-86 0
VANDAS: Inducing Rooting To make roots appear half -way up the stem so that dividing and repotting can follow, peel the tight brown outer covering "bark" off the stem; a root tip should appear soon after. AU76-129 0
VANDAS: Lack Roots Up-stem for Repotting Air-layer the stems to induce rooting by wrapping some places on the stem with moist sphagnum wrapped with polyethylene secured top and bottom with string or elastic, until new roots are large enough to warrant cutting off the stem part. A76-698 0
VANDAS: Leaves Curl, Turn Yellow and Fall This shows up in the fall, with cool weather; it is caused by a poor root system, or nutrient deficiency; fertilize regularly during the summer. F76-33 0
VANDAS: Leaves Fold in V-shape Caused by insufficient water and/or humidity and/or excessive sunlight. F76-85 0
VANDAS: Movability For show purposes; because the roots otherwise spread and cling widely to the bench, etc., when potting place the plant in the pot so that the media comes up only half-way, so that the roots will circle the top half of the pot. AU76-129 0
VANDAS: No Blooms Vanda hybrids with V. sanderiana blood will not bloom if kept too cold, even when located south of Miami; also, relatively strong light is necessary. A71-345 0
VANDAS: To Make More Plants Cut off the top half or so of the plant so that it has aerial roots, leave the leaves on the bottom section, soak the roots to make them pliable for placing within the pot in new pot and potting mix. A69-55 0

New Topics

  1. kevan gregory asked question how difficult is it growing from seed in category General Discussion
  2. Carmen Britton asked question Information in category General Discussion
  3. Jeanne Uzar Hudson asked question Repotting Large Cattleyas in category Cattleya Alliance
  4. Nancy Shapiro asked question Where did you find this type of orchid pot? in category General Discussion
  5. Charles H Wood asked question Orchids wanted St.Croix usvi in category General Discussion

New Comments

  1. Carol Holdren commented on topic "Information " by Carmen Britton
  2. Carol Holdren commented on topic "Repotting Large Cattleyas" by Jeanne Uzar Hudson
  3. Carol Holdren commented on member plant C. lueddemanniana var. Coerulea, Venosa by Paulo Fiuza
  4. Jeanne Uzar Hudson commented on topic "Banrot 40WP" by Therese Stecher
  5. Maria Lucia Prieto Real commented on orchid Rlc. Village Chief Armani
  6. Mariana Chacon commented on orchid Gom. Jiaho Queen
  7. Roberto Lizama commented on member plant Max. dillonii by Roberto Lizama
  8. Nancy Speedy commented on scheduled event "2024 Orchid show Martin County "Ocean of Orchids"" by Martin County Orchid Society
  9. Jeanne Uzar Hudson commented on member plant Paph. Fanaticum by Jeanne Uzar Hudson
  10. R .Benson commented on member plant Den. Tianmu Green Elf 'Sweetheart' by R .Benson
  11. Alice Walker commented on article "Oeniella polystachys" by Tom Kuligowski
  12. Kathryn Kersey commented on scheduled event "Boca Raton Orchid Society Show & Sale" by Boca Raton Orchid Society
  13. BJ Lough commented on member plant Asctm. miniatum by BJ Lough
  14. Carol Holdren commented on topic "Where did you find this type of orchid pot?" by Nancy Shapiro
  15. Carol Holdren commented on topic "What is the culture for Cattliante Chongkolnee" by Mike Minney
  16. Linda Thorne commented on member plant Paphiopedilum Munchkin Mopsi Aru by Linda Thorne
  17. Carol Holdren commented on topic "Orchids wanted St.Croix usvi" by Charles H Wood
  18. William Gorski commented on topic "Is this a species or Primary Hybrid?" by William Gorski
  19. Henry Shaw commented on member plant Coel. Jannine Banks 'Snow White' by Henry Shaw
  20. Carol Holdren commented on topic "Trichocentrum luridum" by Danny Lyon