• Dendrobium exile Schltr.

    Dendrobium exile Schltr.

    Dendrobium exile Schltr. stems are erect, finely cylindrical, ± woody, up to 50 cm long, ca. 3 mm thick, often branched distally, with 2-3 internodes expanded fusiform above the base; the expanded part of the stem is fleshy, 4.5 cm long, ca. 8 mm thick, with 4 ribs, covered with a pale white membranous sheath when young, russet and glossy when old. The leaves are usually alternate on the upper part of the branches, erect, compressed-terete, 2.5-6 cm long, 1.5-2.5 mm wide, acute at the apex, with a leathery sheath at the base. Inflorescence reduced to a single flower, laterally borne at the tip of the branches, white, spreading; floral bracts ovate, ca. 2 mm long, apex obtuse; pedicel and…

  • Dendrobium frostbite

    Dendrobium frostbite

    The picture above shows the frostbitten leaves of autumn dendrobium. Autumn dendrobium is easy to be frostbitten in temperatures below 5 degrees and should be moved indoors in winter in the north.

  • Volcanic stone is a good material for growing dendrobium

    Volcanic stone is a good material for growing dendrobium

    It is a common method to use volcanic stone to grow dendrobium, but of course, volcanic stone is generally added to bark, coconut coir and other materials to mix into planting materials. Volcanic stone is also called pumice or porous basalt, which is a very precious porous stone formed by volcanic glass, minerals and bubbles after the volcanic eruption. Volcanic stone is characterized by its light weight, loose porosity, good permeability and rich in macronutrients such as silicon, aluminum, iron, potassium, sodium, calcium, magnesium, manganese, phosphorus and many other trace elements. The unique porosity, air permeability and water permeability of volcanic stone are suitable for growing orchids and succulents, which require high air permeability, and can be used as planting…

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