Cool growing species rescue : temperatures ?

[s.kallima]

I bought 3 cool growing species last week, 2 of them from an Ecuador seller : Masdevallia coccinea alba and Masdevallia bicolor, and the third from a nurserie in BC (Canada): Coelogyne nitida (= ochracea).

The Masde. are not in good shape, the roots are alive (I got them bare-root) but no new root growing. The M. coccinea has not sign of growing activity, and the M. bicolor has one new leaf just starting.
The Coelogyne nitida is a young healthy plant, in fact it is a backbulb growing 2 new psb, and has lots of nice active growing roots. I had to repot it because it was in a very small pot and outgrowing it.

My question : should I keep these plants in warmer temperature than their regular needs in order to help them go through the repotting and travel stress (for the Ecuadorians) ?
I kept them until now in a cold room (50-57 ºF) but the Masde. don't seem to be doing well (some leaves are dying)

Thank you for your ideas...

[shakkai]

In my experience, keeping the Masdies in warmer than normal temps will only add to their stress. However,
50-57 ºF is quite cool. You can bring the temps for them up into the low 60s (daytime highs) without any problems, I would think, so long as the night temperature drops by 10 degrees or more.

Frequently, I will see some leaf die back any time something is changed on Masdies. I would only worry if leaves start to drop that appear green and healthy, and if it is most of the leaves showing symptoms of dying and not just some of them.

Give them time (a month or so) to adjust to their new homes. Keep them cool and not too wet. I would only start regular watering once I started to see some new growth.

PS. Make sure the humidity is maintained at relatively high levels throughout.

[cloudswinger]

The bicolor and nitida are a warmer growers than the coccinea. When they say cold grower, they usually give night temps, so the coccinea will grow with night temps in the 50s, but the daytime temps are usually 15-20 degrees higher. The other two need about 5-10 degrees higher temp than the coccinea.

[Jorch]

Hi neighbour!

FYI, I got a masd. coccinea from Ecuagenera a few years back, it doesn't like our Vancouver summer at all. I kept it as cool as possible, under 25 degrees in the summer. I put it in a clay pot with sphag to provide a cooler environment for the roots, but still it wasn't happy. It bloomed once shortly after I got the plant, and afterwards it was a steady decline. with yours!

[Bolero]

I grow them even lower than that, I would say minimum in the 40's would be more than fine. 60's as a minimum temp is to high (not sure if that was the implication above).

[s.kallima]

Thank you all for the answers, I will keep them in my cold room and hopefully they will make it ...
The M. bicolor is growing 2 roots from the base of the new leaf.