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Plant of interest
April, 22, 2018

 

Bulbophyllum grandiflorum

This unusual shaped flower is quite varied to the generally accepted form of orchids which makes it different. It is a warm grower as it comes from the tropical regions of Sumatra and New Guinea and likes to be kept quite moist.

The large hooded dorsal sepal tends to cover the tiny labellum and petals,  the ventral sepals twist below from the centre of the flower. Although the flower looks somewhat ungainly it is unique and interesting.

The plant prefers somewhat shaded conditions and does not seem to have a resting period. The flower has an unusual scent which some people do not enjoy.

 

Photo courtesy Petrens Orchids.

 

 

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Plant of interest
March, 27, 2018

 Arpophyllum giganteum

Arpophyllum giganteum is one which emanates from an area stretching from Mexico to Venezuela  and as a consequence prefers a mild to warm temperate climate.

It prefers to grow in a bright position but does not like full sun and enjoys being kept moist but not wet. The plant blooms in late winter to spring displaying a long conical head of small purple flowers neatly displayed fully around the tall central stem.

The pseudo bulbs are thin and reedy, topped with long strappy leafs. Potting mix can be varied but as a general guide bark and perlite, straight bark or even spaghnum moss are acceptable growing mediums.

The plant is considered to be quite easy to grow and because of its unusual compact perfectly aligned floral  head display it is sought after by orchid enthusiasts.

 

 

 

(Photo courtesy of Gary Yong Gee)

 

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Plant of interest diuris longafolia
March, 10, 2018

 

Diuris longifolia is an Australian native (more commonly known as the donkey orchid) which is endemic to the south east area of west Australia. I derives the common name due to the shape the petals which appear to look like donkey ears.

It is a terrestrial orchid and seems to prefer sandy loam soils but it is known to grow in heavier soils throughout its habitat. It is a tuberous perennial which grows approximately fifteen centimetres with the flower extending to about the same height.

Due to colouration on some flowers people refer to this as the pansy orchid because of the purple overlay over the yellow segments.

It is a very interesting plant but can be somewhat difficult to grow in bush house cultivation.

 

 

 

(Photo courtesy of Gary Yong Gee)

 

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Plant of interest
November, 19, 2017
Bulb. medusae

( Photo courtesy of Gary Yong Gee )

Bulbophyllum medusae

This beautiful species orchid from South East Asia is admired by all who see it for not only its beauty but its fascinating long pendulous tendrils which makes it quite unique in the orchid world.

The name is derived from the Greek legend of Medusa as the flower shape appears to represent her hair which was snakes.

It can be grown very successfully in warmer temperate climates where it enjoys higher humidity, good air circulation and moderate light. It does not like to dry out so should be kept mist and sphagnam moss would be an ideal growing medium.

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Plant of Interest
October, 20, 2017

Plant of Interest

( Photo courtesy of Gary Yong Gee)

Dracular  dalstromeii

The plant is native to Mexico and Central America including Columbia Peru and Equador and has an unusual flower sometimes referred to as the monkey face orchid due the shape of the flower which resembles the face of a monkey. It is one of the Pleurothallids, (Pleurothallis, Dracula and Masdevallia) which are quite spectacular in both their colour and shape and are favourites among orchid growers, the reason being the variety of colours including black, orange, white. brown,pink and can be a solid colour or have spots or stripes.

Housing

Light should be restricted to similar conditions to that of Phalaenopsis or Paphiopedulums as too much light will show yellowing of the leaves. Good air movement is required as well as humidity but not warmth as they prefer cooler conditions. Plants can be repotted at most times during the year and they like to have moist conditions rather than be allowed to dry out as in other orchids. Sphagnum moss is an ideal media to grow them in. They are not heavy feeders and fertilizer should be used at half the rate on a monthly basis.

General comments

The individual flower make up is quite different because the sepals are dominant and have long tails while the petals are rather small and somewhat insignificant. Plants grow from a small rhizome but do not have pseudo bulbs which is the reason they require moist but not wet media to grow well. If you are fortunate and live in a less than temperate climate you should be able to grow and flower these unusual  and fascinating orchids.

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Plant of interest
September, 24, 2017

Photo courtesy of Gary Yong Gee

Stanhopea tigrina

This orchid is uniquently different in that it must but grown in a basket or slatted wooden pot as the flower spikes grow down in the media and protrude through the bottom of the container as illustrated in the photo. Many years ago it was not understood why the plant in Kew Gardens never flowered. One day the pot was accidently broken and the flower spikes were observed trying to penetrate  unsuccessfully through the pot.

Housing

The Stanhopea genus is native to South America and consequently likes to grow in tropical conditions. Given warmth and humidity it is relatively easy to grow and flower but likes to be moist and not dry out in summer. Grown under fifty to seventy percent shade cloth with good air movement would be ideal for these to do well.

Fertilizing

Any general purpose balanced fertilizer applied fortnightly in the growing warmer months would be adequate.

General comments

Unfortunately the flowers last just for a few days and are renown for their strong perfume which some find unpleasant. But they are quite spectacular and colourful and are worthy of a spot in the greenhouse.

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Plant of interest: Maxillaria schunkeana
August, 13, 2017

Maxilliara schunkeana

Max. schunkeana was placed on the species bench and although not usually seen at  meetings is one of interest because of its unusual colour.

It is really dark purple-red but to the eye it looks black which is highly unusual in the very colourful world of orchid flowers.

Housing

As it originates  from Brazil in South America it prefers warm to cool conditions, higher humidity and likes to be kept moist but not wet.

Flowers are approximately one centimeter wide and appear from the base of the pseudo bulbs in spring to summer.

Fertilizer

A general all purpose fertilizer is satisfactory every couple of weeks throughout the year.

Potting

Can be grown successfully in sphagnum moss or a finer bark mix but not over potted bearing in mind they tend to spread out in growth.

General Comments

This fascinating orchid is not difficult to cultivate and get to flower. If you can procure one from a nursery you will have something uniquently different in your collection.

 

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John Oxley District Orchid Society
Plants of Interest May 2017
May, 13, 2017

PLANT:           Bulb. Wilmar Galaxy Star

GROWER:     C. and H. Baker

HOUSING:    Grows well in a shade house with seventy percent shade cloth cover. Enjoys good ventilation and air movement.

FEEDING:    Could be described as a heavy feeder, fertilize weekly with alternate applications of higher nitrogen and potassium fertilizer in summer and monthly in winter.

POTTING:    Tends to have a spreading growth and easily outgrows normal pots. Does better if potted in shallow saucer shape pots where it will multiply as it spreads. Can grow into an attractive specimen with many flowers.

COMMENTS: This would be an ideal plant for new growers to have in their collection as it is hardy, grows well in tropical and subtropical climates.

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