Increase exposure in stages
A nursery plant may have grown under different light from the display shelf or your window. Introduce stronger sunshine gradually rather than giving it the maximum exposure on its first day home.
Watch the side facing the light and the newest growth. Pale, dry damage after an abrupt move differs from slow stretching in shade. Do not compensate for heat by keeping an already wet pot continually saturated. Check the actual root zone and protect the plant from overheating against glass.
FAQ
Will scorched leaves turn back to their original color?
Damaged areas generally remain marked; judge better conditions through healthy subsequent growth.
Source
RHS: Growing houseplant cacti and succulents
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