Help with a Peace Lily that has been misunderstood!

I have a beautiful Peace Lily. I put it near a window that gets medium light and watered my Peace Lily - noting that the water goes straight through the pot! Not wanting to overwater the plant, I pour about a cup or two into the soil - finding that it goes straight through! When the white flowers surrounding the spadix began to turn green, I thought perhaps the plant needed more sun. I actually put it outside during these warm, sunny days. It became rather wilty, so I figure that it needed more water. Perks right up when I water her!
I finally discovered Dave's Garden site this evening, to discover that I should not have placed my Peace Lily outside. Having consulted a gardening center, I was informed that the plant is actually too dry and is therefore not absorbing the water, rather than too moist - as I had assumed the roots were not absorbing the water because they were already saturated. I've read in different places here at Dave's Garden that the soil should not be allowed to dry out - but not to allow it to sit in water, yet elsewhere the recommendation is to allow it to sit in water.

My questions are these:
~Why is the flower surrounding the spadix white then turning green? Currently one of these flowers also appears to have a few spots on it. They definately begin white - there is one growing now with a spadex inside, but they turn green. The first one browned out and died.
~What are the lighter flowers - with no spadix - which are also turning green?
~What is the proper light?
~What is recommended watering? Any definitive explanation for the water going directly through the pot?

Thanks all!

The flowers can turn green when they age so that's perfectly normal.

They can live outside during the warmer months of the year, but you ought to keep it in a shadier location, and if it is going in an area that gets any sun make sure to adjust it gradually to the higher light levels or else it can sunburn.

There are a couple reasons why the water may go straight through the pot--if the plant is really rootbound, then there's not much soil in there to hold water. If it's not rootbound, potting mix tends to repel water when it gets too dry, so when you go to water it, the water will find a few channels through the mix and straight out the bottom without really wetting most of the soil in the pot. You need to really soak it in order for the potting mix to be wet all the way through.

They don't like to dry out too much, but as a rule of thumb you should never let plants sit in water (unless they're pond plants, which this is not).

Thank you so ver much ecrane 3!

Just my 2 cents worth.... I had a Peace Lily growing in nothing but water for a couple years. I left it behind when I had to move. I saw it growing like that at a nursery on the counter inside. So I purchased one... Took it home.... washed all the dirt off the roots several times... put it in a round fish bowl... placed it on my kitchen table where it got only late evening sun (Filtered) through a window. Last I heard it was still thriving from the neighbor lady I gave it to.

i have one peace lily growing in water and one growing in soil. Both do well. They like indirect light.