Dendrobium anosum

This is one of my favorite Dendrobium species.  This is more known known as Dendrobium superbum, but anosum is the correct name.  This species has a fairly broad range.  Not only is it found in the Philippines, but also in Borneo, Thailand, Indonesia, New Guinea, and the Malay Archipelago. 
  This species was named by John Lindley in 1845.  The name is misleading, as anosum means without scent.  This couldn't be further from the truth.  You will likely smell the plant in bloom before you see it.  It has a raspberry scent that is wonderful on warm spring days.
  The flowers are about 4 inches across, but sometimes they do not open fully.  The plants will bloom on the leafless pseudobulbs that are from the previous years growth.  The pseduobulbs can reach up to 6 feet in length.  Because they are so long it is better to grow these in a hanging basket or mounted on a slab.  I like to use a wooden or plastic basket filled with osmunda.  I hang the basket sideways so the long psuedobulbs can hang down.  Throughout the growing period, I water every other day or every third day.  I fertilize them during this period every other week at about half the recommended strength.  During late fall and the winter I cut back the water to once a week.
  There are two well known varieties, anosum var. dearei (alba form) and anosum var. huttonii (semi-alba form).  All of them are worth while adding to your collections as they are fairly easy and will reward you with a huge floral display.