I've just recently (2013.03.08) bought a lilium and an orchid plant from a big hardware/gardening chain store. The day after, I watered them early in the morning with room temperature water (unfortunately chlorine treated tap-water) as instructed and by the end of the day I noticed that some of the leaves of the Lilium have started to dry out and wither.
The plants pick a bit of the air stream of my air-condition, but it is set to 19°C (warm mode) and the room temperature is at 21°C - both of which might be the reason why the upper layer of the soil was dry 5 days after watering. They receive constant, but not direct, sunlight throughout the day.
I've been pruning the withered leaves, as they came off with ease and I thought it wouldn't do any additional harm.
Is this normal or is the plant unhealthy? Am I doing something I shouldn't be doing?
On the other hand the orchid is doing fine, but I am still concerned as I read somewhere that when something is wrong with an orchid plant it dies suddenly.
Also, are there any other tips for taking care for these plants I should know?
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