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…more orchids

February 24, 2012

Dendrobium signatum (Orchidaceae) is another native orchid currently blooming at Dokmai Garden in Chiang Mai in northern Thailand. It is a true native of the north, only found in adjacent areas in Burma, Laos and Vietnam. Being a true monsoon plant, it not only endures drought, it demands it! It is therefore a good choice in your Chiang Mai garden since you do not have to worry about its care. The flowers are funnel-shaped with twisted petals. Some specimens have a yellow blotch, some have two dark blotches and such varieties are nicknamed ‘Blackeye’. The pseudobulbs are strikingly fleshy and reminds one of asparagus from Berlin.

When young the flowers are greenish but they will develop more white colours when mature.

Text & Photo: Eric Danell

2 Comments leave one →
  1. John Hobday permalink
    February 25, 2012 9:44 AM

    We have recently been connected to town water and have noticed that some orchids and maybe some fern species are dying. Could it be the chlorine in the water is lethal to some plants?

    • February 26, 2012 8:18 AM

      Chlorine is indeed poisonous, and sometimes the pH and the hardness is wrong too. What you aim at is rainwater. If you can collect that, or collect tap water which you store in an open plastic barrel for some days to reduce chlorine and allow for some calcium precipitation, you should have much better water.

      Good luck, Eric

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