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How to Prune Dendrobium Orchids

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cooktown orchids (dendrobium phalaenopsis) image by leprechaun from Fotolia.com

Dendrobium orchids are evergreen flowering plants that, in nature, grow on trees. The dendrobium will bloom from six to eight weeks, on long, sturdy stalks and make striking cut flower arrangements. Since pruning at the wrong time may result in the elimination of dendrobium flower buds it is best to prune when the flowers have died and the stalk turns yellow or brown.

Cut the flower stalk to within 1 inch of where it grew from the plant.

Remove dead or diseased leaves or branches.

Remove the dendrobium from its pot and gently cut away any dead roots. Repot, back into the original pot, with fresh fir bark or other orchid-growing medium.

  • Dendrobium orchids are evergreen flowering plants that, in nature, grow on trees.
  • Remove the dendrobium from its pot and gently cut away any dead roots.

Water the plant until the water drains from the bottom of the pot.

Signs Of Over-fertilizing Dendrobium Orchids

Over-fertilization will "burn" an orchid. Burns begin at the roots and move to the leaves. If the leaf tips of your dendrobium orchids begin to turn brown, stop fertilizing and give your plant plenty of water to keep the soil moist, but not soggy. Leaves may also turn brown due to too much light, but this looks different: You’ll see dark brown blotches that may be raised along the leaves, not just at the tips. The leaves may also take on a bleached or purplish-red appearance. With over-fertilization, this does not happen. Isolate your plant to prevent the spread of disease, and cut back feeding until your plant begins to thrive again. Feed with a 10-10-10, or 20-20-20 fertilizer. Orchids potted in sphagnum moss or another medium that retains moisture will require less frequent feeding and watering.

  • Water the plant until the water drains from the bottom of the pot.
  • If the leaf tips of your dendrobium orchids begin to turn brown, stop fertilizing and give your plant plenty of water to keep the soil moist, but not soggy.

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