Botanical name: Dendrobium spp
Dendrobium Phalaenopsis Orchid also called Hard Caned Dendrobium Orchids are easy to grow Indoor Orchids which bear large, long-lasting flowers arranged along an unbranched flowering stems.
Dendrobium Orchids are sympodial branching herbs with cylindrical roots arising from the base of a pseudobulb. The pseudobulbs of Dendrobium Orchids are long and cane-like, and covered with the bases of the leaves.
There are one to many leaves arranged in two ranks which vary in shape from linear to oblong and sometimes cylindrical.
Dendrobiums can be divided into Hard Caned or Soft Caned Dendrobiums. The Hard Caned Dendrobiums are also called Dendrobium Phalaenopsis because they have some characteristics similar to Phalaenopsis.
These similar characteristics are thick, waxy leaves and the flowers are borne on a flower spike.
Hard Caned Dendrobiums have a harder cane than the Soft Caned Dendrobiums. Their pseudobulbs are tall and very thin.
Dendrobium Phalaenopsis are evergreen and keep their leaves for many years. The flower spike emerges from the top of the cane.
The petals and sepals in Dendrobium Phalaenopsis Orchids are free from and more or less similar to each other but distinctly different from the lip (lowermost flower petal).
The lip is more or less egg-shaped and there is often a callus constising of narrow parallel ridges in the center of the lip.
Many hybrids and cultivars of Dendrobium Phalaenopsis Orchids have been developed which have greatly extended the range of colors.
The flowers range in color from white, green, yellow, pink, purple and often contrasting colors in the lip (lowermost flower petal). With good care Dendrobium Phalaenopsis orchids will bloom year after year.
Dendrobiums are native to the tropical forests of Australia and New Guinea where temperatures are relatively constant therefore they do not require a significant temperature difference to induce flowering.
The genus name Dendrobium is derived from the Greek words dendro meaning "tree" and bios meaning "life" in reference to the epiphytic habit of most species. The genus name is abbreviated as Den. in horticultural journals.
Dendrobium Phalaenopsis Orchid grows best in bright, indirect light of about 10 hours per day.
Keep your Dendrobium Phalaenopsis Orchid away from direct sunshine to avoid sun scorch on the leaves.
Regularly turn the pot to ensure your Dendrobium Phalaenopsis Orchid gets adequate light on all sides.
A Hard Caned Dendrobium Orchid that is receiving the right amount of light has light-green upright leaves.
Dark green leaves indicate that your Dendrobium Phalaenopsis Orchid needs more light.
Yellow leaves means that the Dendrobium Phalaenopsis Orchid is receiving too much light. Check out this guide on understanding light for houseplants
Water Dendrobium Phalaenopsis Orchids thoroughly during the growing season and allow the top half of the soil to dry out between waterings.
Reduce watering for your Dendrobium Phalaenopsis Orchid during the cold season as growth is minimal at this time.
Use tepid, chlorine-free water as your Dendrobium Phalaenopsis Orchid is sensitive to chlorine and other chemicals dissolved in water.
Avoid wetting the foliage of your Dendrobium Phalaenopsis Orchid as it can lead to fungal diseases.
Hard Caned Dendrobium Orchids are more tolerant of dry soil conditions due to the presence of pseudobulbs and their thick leaves so keep them on the drier side. Read more on how to water houseplants.
The best temperatures for growing Dendrobium Phalaenopsis Orchid indoors is between 16-300C.
Warmer days and cooler night temperatures with a difference of 8-110C are ideal as they encourage flowering in your Dendrobium Phalaenopsis Orchid.
Ensure there is good air circulation as your Dendrobium Phalaenopsis Orchid cannot tolerate hot and stuffy conditions.
Protect your Dendrobium Phalaenopsis Orchid from draughts as it hates sudden changes in temperature. Check out this guide on understanding temperature for houseplants.
Moderate humidity is ideal for Dendrobium Phalaenopsis Orchid.
If the air is too dry, set the pot on a wet pebble tray to raise humidity for your Dendrobium Phalaenopsis Orchid. Check out this techniques on how to raise humidity for houseplants.
Occasionally clean the leaves of your Dendrobium Phalaenopsis Orchid by damp-wiping with a soft cloth.
Do not mist the leaves of your Dendrobium Phalaenopsis Orchid as it can lead to fungal diseases. Read more on how to clean houseplants.
Feed Dendrobium Phalaenopsis Orchid every 4 weeks during the growing season with a balanced, water-soluble fertilizer.
Withhold feeding your Dendrobium Phalaenopsis Orchid during the cold season as growth is minimal. Do not feed an orchid that is in flower. Read more on how to feed houseplants.
Dendrobium Phalaenopsis Orchids bloom best when they are pot-bound. Repot Dendrobium Phalaenopsis Orchid only when growth begins to suffer.
Repot when your Dendrobium Phalaenopsis Orchid has outgrown its pot and the new growth reaches out over the edge or when the soil has broken down completely.
Basically repotting your Dendrobium Phalaenopsis Orchid every 2-3 years should be adequate.
Repot your Dendrobium Phalaenopsis Orchid only when new growth begins, shortly after blooming is over.
Use a pot with proper drainage holes or slits; the roots of your orchid need good air circulation.
The pot for your Dendrobium Phalaenopsis Orchid should be only 1 size larger than the previous one.
Use loose, free-draining bark soil for your Dendrobium Phalaenopsis Orchid.
When repotting your Dendrobium Phalaenopsis Orchid, shake off excess soil.
Trim off any dried and shrivelled pseudobulbs on your Dendrobium Phalaenopsis Orchid.
Pruning Dendrobium Phalaenopsis Orchid is easy. Remove dead and diseased leaves by cutting them at the base with sharp scissors or a knife.
The flower spike in Dendrobium Phalaenopsis Orchid arises from the top of the cane. Once flowering is over, cut the flower stalk at the point where it meets the cane. The cane has the potential to produce more flower spikes.
Do not remove old leafless canes from your Dendrobium Phalaenopsis Orchid as they continue to provide water and nutrients to the orchid.
The old canes in your Dendrobium Phalaenopsis Orchid can produce Keikis which can be used to propagate new orchids.
Phalaenopsis Dendrobium Orchid do not need a significant temperature difference to initiate flowering.
A slight difference of of 8-110C is adequate to initiate flowering in your Dendrobium Phalaenopsis Orchid.
Reduce watering for your Dendrobium Phalaenopsis Orchid but maintain the soil moderately moist during this period.
Withhold feeding for your Dendrobium Phalaenopsis Orchid during this period.
Take back your Dendrobium Phalaenopsis Orchid to its usual spot when the 6 weeks period is over.
This kind of treatment will coax a Hard Caned Dendrobium Orchid to flower as it mimicks its natural triggers in the wild.
Gently split the Dendrobium Phalaenopsis Orchid rhizome into sections. Retain at least 3 shoots on each section.
Seperate the roots attached to each section of the Dendrobium Phalaenopsis Orchid from the mother's root ball.
Remove the old potting soil attached to the roots of the Dendrobium Phalaenopsis Orchid section.
Place each section of Dendrobium Phalaenopsis Orchid in the center of the pot.
Bury the roots of the Dendrobium Phalaenopsis Orchid section in the soil while ensuring that the bottom of the pseudobulb is level with the top of the soil.
The best pot for the Dendrobium Phalaenopsis Orchid sections should be about 1-2 in. larger than the pseudobulb.
Ensure the pot for your Dendrobium Phalaenopsis Orchid has enough drainage holes and slits to prevent root-rot.
Place the set up in a shaded place until the new Dendrobium Phalaenopsis Orchids have established their own roots which is marked by new growth.
Water the new Dendrobium Phalaenopsis Orchids lightly to enhance root development.
Stake each newly repotted Dendrobium Phalaenopsis Orchid.
Dendrobium Phalaenopsis Orchids naturally produce "baby" orchids called keiki.
Keikis normally appear at the end of the cane which is where the keiki producing hormones accumulate. Keikis are identical copies of the parent.
The keiki can be detached from the mother Dendrobium Phalaenopsis Orchid when about one year old when it has developed 2-3 leaves and 1-3 in. long roots.
Pot the Dendrobium Phalaenopsis Orchid keiki in fresh potting medium.
Direct the roots downwards and provide support for the Dendrobium Phalaenopsis Orchid keiki.
Place the set up in a shaded place and mist the Dendrobium Phalaenopsis Orchid keiki regularly to maintain a humid enviroment.
The Dendrobium Phalaenopsis Orchid keiki may take 1-3 years to bloom.
Photo Credit: AmThai Orchids Online
Brown soft spots on your Dendrobium Phalaenopsis Orchid leaves are an indication of a fungal disease.
Remove the affected leaves of your Dendrobium Phalaenopsis Orchid immediately to prevent further spread.
Exposure of your Dendrobium Phalaenopsis Orchid to direct sunshine will result in scorch marks which are brown hard and dry spots on the leaves.
Move your Dendrobium Phalaenopsis Orchid to a shadier spot or protect it from direct sunshine.
This is an indication of Powdery Mildew Disease in Dendrobium Phalaenopsis Orchid.
Misting the leaves in Dendrobium Phalaenopsis Orchid may lead to mildew growth if the water does not evaporate quickly.
Ensure good air circulation for your Dendrobium Phalaenopsis Orchid and stop misting it.
Limpy and droopy leaves in Dendrobium Phalaenopsis Orchid are caused by underwatering. Do not allow the soil to dry out completely.
Water your Dendrobium Phalaenopsis Orchid thoroughly, maintain the soil consistently moist and allow only the top half of the soil to dry out between waterings.
Dark green leaves in Dendrobium Phalaenopsis Orchid indicate that your orchid is not getting enough light.
Move your Dendrobium Phalaenopsis Orchid to a brighter spot. The leaves of a Hard Caned Dendrobium Orchid that is receiving the correct light should be light green.
Yellowish leaves in Dendrobium Phalaenopsis Orchid indicate that your orchid is getting too much light.
Move your Dendrobium Phalaenopsis Orchid to a shadier spot. The leaves of a Hard Caned Dendrobium Orchid that is receiving the correct amount of light should be light green.
The cause of black leaf tips in Dendrobium Phalaenopsis Orchid is the presence of chemicals like chlorine and flourides in water.
Use chlorine-free water only to water your Dendrobium Phalaenopsis Orchid.
Too little light for Dendrobium Phalaenopsis Orchid causes the orchid not to bloom or flower.
Move your Dendrobium Phalaenopsis Orchid to a brighter spot where it will receive bright, indirect light.
Hard Cane Dendrobium Orchids (Dendrobium Phalaenopsis) are non-toxic to both humans and pets. They are safe to grow indoors.