What are the adaptation and the lifespan of orchids?_?
Answers: Umm, orchids are VERY long lived plants, some of the original specimens discovered and collected within the 1700s and 1800s are still around. Many people enjoy willed their orchid collections to their heir because well care for orchids are practically immortal, according to some. Some grow for so long and get so huge that the tree they live on literally collapses!
Dendrobium nobile is an epiphyte (air plant). It, resembling many orchids, have pseudobulbs, where it stores hose down and nutrients. Like all orchids, it have a specialized combination of stigma and anthers called a column, which is located nearest to a speciallized petal called a lip. And the pollen is carried not as dust similar to most flowers, but as little blobs called pollinia. The adaptation for pollination are as varied as the orchid domestic: the genus Orphys uses pseudocoupulatory polination (the male insect think that the flower is a female and tries to mate next to it), and some genera shoot their pollen when something touches the flower. The seed are the smallest seed specified: all they are is a plant embryo surrounded by a papery husk. They need their mychorizal fungi to germinate, otherwise they wouldn't obtain the right nutrients. (It is possible with modern tecnology to germinate orchids minus fungus, but that is usually done surrounded by a laboratory). One of the really cool adaptations of the epiphytic orchids is vellamen (not sure how you spell it). It's a vein of white tissue that grows on the outside of the roots. When wet, it turns clear and exposes the green tissue below, so that the plant can photosynthesize near its roots.
Dendrobium nobile is one of the "cool" growing varieties.
During the growing season, darkness temperatures should be around 55 degree with daytime temperature around 70 - up to 80 degrees is agreeable.
They have a a bit long resting period after growth have matured which is indicated by a single leaf at the top of respectively stem. They will now require hours of darkness time temperatures of 50 degree and around 60 in the during the year.
Keep in bright feathery, but water should be conical off leisurely to almost nothing for in the region of 4 to 5 weeks during this time. They will lose all their leaves. Resume watering once current growth appears in spring and buds start to develop.
We are surrounded by Florida and don't have much luck blooming nobiles unless we embezzle special care to hold them cool during the summer months.
See source for information on other (easier) orchids to grow in your home.
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