Welcome to OrchidsForum.com. We are a friendly online community for Orchid Growers all over the world. If you haven't joined yet we invite you to register and join our community. Hope to see you on our forums!

Dendrobium tobaense var. giganteum

Discussion in 'Orchid Species' started by pcolman, May 30, 2017.

  1. pcolman

    pcolman Well-Known Member Supporting Member

    Messages:
    1,073
    Likes Received:
    1,573
    Location:
    NYC
    I've had this plant for about 6 months now, though I grew the "regular" D. tobaense for about a decade some years past. Don't remember what made that one croak, but it was probably something stupid I did. Anyhow, var. giganteum is identical vegetatively, but the flowers are appropriately much larger. When first open they're about 4-1/2" across, but the petal/sepal tips curve back after a few days so it winds up being less than 4" across. Still, they're quite large relative to the size of the plant.

    6 open flowers and 2 buds on one cane, one open flower each on two others. Growing it intermediate, bright light (probably a bit too much), moist. Doesn't like to dry out, but new growths are prone to rotting, so some care is necessary. From the base of the mount to the tip of the tallest cane is 19".

    Dendrobium tobaense var. giganteum closeup.jpg Dendrobium tobaense var. giganteum flowers 01.jpg Dendrobium tobaense var. giganteum flowers 02.jpg Dendrobium tobaense var. giganteum.jpg
     
    Last edited: May 30, 2017
  2. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,455
    Likes Received:
    3,250
    Location:
    Santa Rosa, CA
    Very nicely done! Not an easy species.
     
  3. xmpraedicta

    xmpraedicta Prairie angraecoid nut Supporting Member

    Messages:
    1,736
    Likes Received:
    558
    Location:
    Saskatoon, SK
    Beautifully grown! I wish mine would grow short little manageable roots like that, rather than the foot long monstrosities it puts out.
     
    Kipper likes this.
  4. sam1147

    sam1147 sam1147

    Messages:
    1,025
    Likes Received:
    377
    Location:
    Israel
    Awesome
     
  5. CoveLady

    CoveLady Active Member

    Messages:
    571
    Likes Received:
    120
    Location:
    Brevard NC
    Fastinating flower, like the color.
     
  6. Kipper

    Kipper CoffeeCoffeeCoffee... Supporting Member

    Messages:
    1,097
    Likes Received:
    409
    Location:
    Ft. Worth, Texas
    Fabulous, and welcome to the forum.
     
  7. KellyW

    KellyW Orchid wonk Staff Member Supporting Member

    Messages:
    6,529
    Likes Received:
    2,314
    Location:
    Redding, California, USA
    Pcolman, do you happen to grow Dendrobium scabrilingue? Just wondering if they take similar conditions.

    You have done beautifully with that plant. Congratulations.
     
  8. Ricardo

    Ricardo Slave of demanding bird

    Messages:
    1,247
    Likes Received:
    912
    Location:
    Puerto Rico
    Love the flowers! Their color and shape are amazing. To my pareidolic mind the flowers seem to be showing the aftereffects of having tasted something hideously loathsome.
     
    JohnF likes this.
  9. Kipper

    Kipper CoffeeCoffeeCoffee... Supporting Member

    Messages:
    1,097
    Likes Received:
    409
    Location:
    Ft. Worth, Texas
    Yack!
     
  10. naoki

    naoki Well-Known Member

    Messages:
    2,468
    Likes Received:
    1,194
    Location:
    Fairbanks, Alaska
    Wow, they look great!
     
  11. pcolman

    pcolman Well-Known Member Supporting Member

    Messages:
    1,073
    Likes Received:
    1,573
    Location:
    NYC
    It was potted when I got it last December, so all the roots you see have grown since then. I'm sure it'll put out longer roots over time. As long as it doesn't try to put out 3ft long roots like the Rodriguezia next to it.

    Thanks!

    I grow a few other nigrohirsute Dens (lowii, jaintianum, formosum) but not scabrilingue. But I think the culture is pretty similar.

    Glad you like it. I think. :)
     
  12. Monet's Garden

    Monet's Garden Member

    Messages:
    55
    Likes Received:
    26
    Wow. Stunning flowers!
     
  13. pcolman

    pcolman Well-Known Member Supporting Member

    Messages:
    1,073
    Likes Received:
    1,573
    Location:
    NYC
    The plant has grown. The tallest cane is nearly two feet tall, though the canes in bloom or bud vary greatly in height. Flowers are somewhat larger this year, close to 5" wide if the petals opened straight outwards.

    Dendrobium tobaense_08.26.18.jpg Dendrobium tobaense flowers 01_08.26.18.jpg Dendrobium tobaense flowers 02_08.26.18.jpg Dendrobium tobaense flower_08.26.18.jpg Dendrobium tobaense closeup_08.26.18.jpg
     
    Last edited: Aug 28, 2018
  14. Kipper

    Kipper CoffeeCoffeeCoffee... Supporting Member

    Messages:
    1,097
    Likes Received:
    409
    Location:
    Ft. Worth, Texas
    I LOVE THAT! :clap: Brilliant photos too...
     
  15. xmpraedicta

    xmpraedicta Prairie angraecoid nut Supporting Member

    Messages:
    1,736
    Likes Received:
    558
    Location:
    Saskatoon, SK
    Absolutely marvelous photos, and excellently grown. Do you find any seasonal trigger / change in cultural conditions to blooming this one? Am I correct in seeing that it is blooming on old canes as well?
     
  16. pcolman

    pcolman Well-Known Member Supporting Member

    Messages:
    1,073
    Likes Received:
    1,573
    Location:
    NYC
    This blooms for several months summer-fall, but I water it year-round. Old canes don't rebloom that I've noticed. I grow it intermediate. I give it 60° F winter nights, but know it would do fine cooler.
     
  17. Marni

    Marni Well-Known Member Staff Member Supporting Member

    Messages:
    13,455
    Likes Received:
    3,250
    Location:
    Santa Rosa, CA
    That is really spectacular!
     
  18. sam1147

    sam1147 sam1147

    Messages:
    1,025
    Likes Received:
    377
    Location:
    Israel
    Awesome
     
  19. slippersnpitchers

    slippersnpitchers New Member

    Messages:
    21
    Likes Received:
    6
    Location:
    Canada
    Yes, wonderful photos & plant! The black background brings the colours out more intensely. What is the size difference between var. giganteum and the typical form?
     
  20. pcolman

    pcolman Well-Known Member Supporting Member

    Messages:
    1,073
    Likes Received:
    1,573
    Location:
    NYC
    The plants are pretty much the same size. var. giganteum might be slightly larger.
    The flowers of var. giganteum are much larger.
     
    slippersnpitchers likes this.