WSBEorchids

Odontoglossum multistellare- 365 days of orchids – day 1980

Our orchid project students were the stars earlier in the week working with Dr David Roberts from Kent University, but today it this South American orchid species that is the star.

Odontoglossum multistellare certainly lives up to its name and every summer produces branched spikes of attractive, star shaped, flowers, and a small plant produces a lot of flower for its size. Our largest plant shown above has 300 flowers this year.

Odontoglossum multistllare is a cool growing species found in cloud forests at around 2000m altitude from Ecuador to Peru, and we grow our odontogloissums in baskets hanging in cool Americas (min 12C). The target to achieve really good plants seems to be to grow health roots and then keep the roots alive for years – this allows plants to make large bulbs that reward us with long spikes of these graceful flowers. Heavily watered baskets and a very open bark compost seems seems best for good root development in our conditions.

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Stelis itatiayae – 365 days of orchids – day 1980

 

We have another Brazilian Stelis species to follow Stelis thermophylla. A miniature species with a big impact. The plant shown is in a 10cm basket and leaves up to 5cm. the flower spikes are 10cm long with 20 flowers each.

Stelis itatiayae is native to the forests that follow the East Coast of Brazil – the Mata Atlantica.

It was during our first expedition to Brazil in 2000 that we made first contact with stelis species and this is one of the species found in the Mata Atlantica around our base in Macae de Cima. The habitat here is cool, wet, forest and Stelis itatiayae is found growing from 900-1400m in the low trunk area on trees, and so the species enjoys good humidity, and we find it loves a shady spot in Cool Americas (min 12C) and lots of water.

I do feel that we are very lucky to have explored so many orchid habitats on school expeditions. It is no surprise that standing at the foot of a tree full of a favourite orchid species flowering is a great help in understanding how to grow orchids well.

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Orchid Project Students work with Dr Roberts

We have had a wonderful day in the Mendip Orchid Labs today where we have been joined by Dr David Roberts from Kent University.

Dr Roberts has been working with Orchid Project students since 2004, both in his previous role at Kew and his current role leading the Wildlife Conservation Degree at Kent University, and today joined Year 10 and Year 11 students to learn orchid propagation skills.

More joint projects are in the pipeline especially focussed on conservation research.

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Stelis thermophila – 365 days of orchids – day 1979

Our star orchid this week is our specimen plant of Stelis thermophyla.

This stunning stelis is a small growing floriferous species from Brazil. Every summer plants are smothered in delicate pinky brown flowers in charming upright spikes.

Stelis thermophila is native to coastal forests in Brazil where it grows in warm wet forests at lower altitudes than most of our Stelis species that are cool cloud forest specialists (hence the name thermophyla meaning warm growing). Despite this we find the species is very happy in our Cool America section where we grow it mounted and in pots alongside similar species, but confident that it will not mind warm days in the greenhouse. We have had the species since the 1990s and find it trouble free and reliable.

In our expeditions to Brazil we have been captivated by the stelis species we have seen flowering in the wild. They are a wonderful example of small plants with tiny flowers putting on a great display and Stelis have become a key component of the Writhlington collection over time.

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Dendrobium crumenatum – 365 days of orchids – day 1978

It is a Pigeon Orchid day here in the greenhouse. Lovely white flowers with a yellow blotch on the lip – but only for one day.

Dendrubium crumenatum (or the pidgeon orchid) is a well known and interesting orchid from South East Asia and a very common city tree in Kuching, Sarawak.

Our plant is now mature with pseudobulbs/flower spikes reaching out over a metre from the basket. It is well documented that plants flower a while after a period of heavy rain, and the flowers that open together just last a day. As a result it is always a lovely surprise when we find our plant covered in flowers, and we make the most of it while we can. The plant makes up for its short lived flowers by flowering several times every year.

We grow the plant high in our warm asia section so that it gets as warm an environment as we can manage. Remember not to cut of flower spikes as they re-flower for several years. We get a flowering every few months.

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