It does not seem to wither in daylight with direct line of sight to the sky or planted near a light source.

I planted some in a dark room to test as well, and it has not tried to grow even once since I planted it maybe half an hour ago?

It also did not let me plant it at all unless there was at least a dim amount of light filtering into the room from outside - unsure if this is just intended behavior or not.

The dark room:

The ones planted outside: