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Marvellous Masdevallia Orchids!

The orchids at GroWell Sheffield are really starting to look the part now, you can definitely understand why so many people enjoy growing these wonderful plants! Our greenhouse manager Gareth has been well and truly bowled over by this species of orchids in the genus Masdevallia, with his total collection now approaching 100 plants! Discover what techniques and products he used to get the best possible results...
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Masdevallia orchids are native to Central and South America, growing in cool conditions at high elevation. At this time of the year the GroWell greenhouse is cool and humid, just the conditions they need to bloom and thrive.

Throughout the summer months it often proves to be quite a challenge to ensure that the temperature stays low enough whilst the humidity remains high, so during these periods of warmer weather the Masdevallia orchids get moved into a Small BudBox Grow Tent that’s been fitted with a T5 2-Tube Grow Light. Here the temperature can be kept below 25oC and relative humidity maintained at the preferred 70%.

Code Price Qty
Small BudBox Pro Grow Tent (75cm x 75cm x 100cm) 5420 Small BudBox Pro Grow Tent (75cm x 75cm x 100cm)
T5 Propagation Grow Light 2-Tube 1785 T5 Propagation Grow Light 2-Tube


Relocating the plants back into the greenhouse towards the end of the year and positioning them in the coolest area of the greenhouse helps to encourage many of the species in the collection to start the flowering process.

This species of Masdevallia is Masdevallia constricta, proving to be fairly typical of most Masdevallia species with its triangular shape and three showy sepals. The plants are growing in a small square pot using Canna Terra Professional Soil Mix, an excellent media for growing most species of orchid. Masdevallia enjoy moist conditions but the medium must have good aeration and drain well, so frequent low volume watering is needed.

Code Price Qty
Canna Terra Professional Soil Mix - 50 Litres 1116 Canna Terra Professional Soil Mix - 50 Litres


Like many species of orchid, Masdevallia are sensitive to minerals and chlorine in tap water. A V2 Reverse Osmosis System is employed to get around this issue, creating pure contaminant free water.

Code Price Qty
V2 Pure 50 Reverse Osmosis System 3608 V2 Pure 50 Reverse Osmosis System


After the water has been purified, Orchid Focus Grow or Bloom gets added to it (depending on the point you're at in the lifecycle) at a cF of 6 (EC 0.6) and a pH of 6.

Code Price Qty
Orchid Focus Grow - 300ml 0269 Orchid Focus Grow - 300ml

Out of stock

Orchid Focus Bloom - 300ml 0268 Orchid Focus Bloom - 300ml

Out of stock


Rather than use a watering can or a measuring jug, the feed is applied with a 5 Litre Professional Sprayer to ensure an even delivery of nutrient solution over the surface of the growing media. Once fully pressurised by pumping, the sprayer, set to a fine mist mode, delivers around 7-10ml per second. Each pot needs around 50ml every 3-4 days, so when watering simply press the trigger and count to 5 for every separate plant… simple!

Code Price Qty
5 Litre Professional Lance Sprayer 3093 5 Litre Professional Lance Sprayer


If you are interested in growing orchids, please get in touch with one of our growing experts by phone (0845 345 5176), in store (we’ve got shops in London, the Midlands, Sheffield and Bristol) or via email (customerservices@growell.co.uk). But be warned, Orchids such as Masdevallia are highly addictive!

This post was posted in Expert Tips, Growing Tips



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