My care habits seem to be death to S. hartmannii

[camille1585]

Wow, this is completely the opposite of what Orchidwiz says for this one! OW says Catt level light, as much as the plant can tolerate short of burning the leaves because in the wild they live in exposed habitats. And light is highest in winter. So are they completely off the mark with this one?

[Lagoon]

Camille, In my case it didn't like the high heats with the high catt light. My house is cooler now and the lighting is the same. So I think its the combination of the two.

[Andrew]

Originally Posted by camille1585

Wow, this is completely the opposite of what Orchidwiz says for this one! OW says Catt level light, as much as the plant can tolerate short of burning the leaves because in the wild they live in exposed habitats. And light is highest in winter. So are they completely off the mark with this one?

Low end-mid Catt light (~50-60% shade) is fine for hartmannii in winter but, as Lagoon suggests, in summer you risk cooking them with the amount of heat that comes with that much light.

Upton says the following about this species:
"In exposed areas it is frequently found among grasses or in shaded, deep gorges among mosses." (incidently Upton recommends 60% shade)
Jones notes "exposed plants often bleached yellowish green".

It likes more light than other Sarcs but it still does best with some shade and I wouldn't consider it a "sun lover".