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 vexillarius

Discussion in 'Orchid Species' started by Jgrimm1055, Jul 16, 2017.

  1. Jgrimm1055

    Jgrimm1055 Jonathan loves Masdevallias!

    Messages:
    209
    Likes Received:
    175
    Location:
    New Jersey
    I'm a big fan of this one! High humidity, cool temperatures and pure water. It has two more buds forming but I wanted to post a picture now. I'll post more pictures as I get more flowers. Screenshot_20170716-090116.png Screenshot_20170716-090340.png Screenshot_20170716-090104.png Screenshot_20170716-090142.png
     
    JFeathersmith, JohnF, Kipper and 3 others like this.
  2. naoki

    naoki Well-Known Member

    Messages:
    1,375
    Likes Received:
    393
    Location:
    Fairbanks, Alaska
    Very nice!
     
    Jgrimm1055 likes this.
  3. Raven

    Raven Member

    Messages:
    85
    Likes Received:
    23
    Location:
    Pacific Northwest
    I like this species too. I found out that they can handle warmer nights than people usually think. No damage with 60F night temperatures for 30 days in a row.
     
    Jgrimm1055 likes this.
  4. Mikhail kujawa

    Mikhail kujawa Well-Known Member

    Messages:
    669
    Likes Received:
    464
    Location:
    Golden, CO
    Nice one! :clap:
     
  5. sam1147

    sam1147 sam1147

    Messages:
    725
    Likes Received:
    236
    Location:
    Israel
    Very nice
     
  6. Gerrit

    Gerrit Active Member

    Messages:
    129
    Likes Received:
    147
    Location:
    Ghent, Belgium
    That's a nice miniature Dendrobium. Does it need much light to flower?
     
  7. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    499
    Likes Received:
    394
    Hi Raven, unlike cuthbertsonii which seems to be somewhat tolerant regardless of the color form, I believe some of the varieties of vexillarius may be more tolerant than others. I find that microblepharum (Orange) and alboviride (white) bloom just as well in the Summer as in the Winter. I find that elworthyi (dark orange-red) grows in the Summer but doesn't bloom well...also find it needs more light. The pink uncinatum I'm still unsure about. I don't have, but would love the blue (retroflexum). I hear it really likes cool and is reputed as difficult.
     
    Raven and Jgrimm1055 like this.
  8. Jgrimm1055

    Jgrimm1055 Jonathan loves Masdevallias!

    Messages:
    209
    Likes Received:
    175
    Location:
    New Jersey
    I give mine medium to medium/high light. 5 to 7 inches from my T5 HO tubes.
     
  9. Raven

    Raven Member

    Messages:
    85
    Likes Received:
    23
    Location:
    Pacific Northwest
    Chuck, good to know, I was going to try a blue one, but now I'm a bit hesitating (the price is high!).
     
  10. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    499
    Likes Received:
    394
    Hi Raven, I haven't even seen a blue one for sale.
     
  11. Raven

    Raven Member

    Messages:
    85
    Likes Received:
    23
    Location:
    Pacific Northwest
    I found just one for trade/sale from a private grower.
     
  12. Chuck-NH

    Chuck-NH Well-Known Member

    Messages:
    499
    Likes Received:
    394
    If you see one again and you think the price is too high, let me know
     
  13. Raven

    Raven Member

    Messages:
    85
    Likes Received:
    23
    Location:
    Pacific Northwest
    Sure.
     
  14. pacome

    pacome Active Member

    Messages:
    251
    Likes Received:
    66
    Location:
    Belgium
    I have had the "chance" to spend a good amount of money on Retroflexum plants imported 3 & 5 years ago by Popow in Germany. They were not more expensive than orange ones (ca. 20-30€ per plant), but noone was really blue, most of them were some greyish-greenish-bluish-violet, quite pale...but still very interesting colours for sure. I think the lack of cold temperature during blooming was responsible for paler (and smaller) flowers. A few of them still have some living growths, but most declined and died after max. 1 year of seemingly good growth. And almost noone rebloomed after the buds/flowers on imported plants faded. I grow fairly well the red-orange forms - all plants multiplied their size ca. x 2 per year, but more than 50% of them suddenly died, one after one, most often in summer. The ones I still have are doing great, and I think they're those I kept on the drier side, without too much synthic at the roots (mounted on tropical hardwood)
    The white forms here survive fairly well, but growth is slow, and blooming more than erratic.
    All this in Belgium, in a greenhouse with 10°C winter minima, 28-30 °C summer highs.