Egad...Dungeon Crop Help Options

[oowowaee]

I'm new to Rune Factory, but I have been playing HM for a long time.

This game is so hard to figure out sometimes ~.~

Ok, so, after spending 50,000G in Summer, I realized "so hey, maybe you can't grow flowers in dungeons".

I got into the Lava Ruins, and I planted a few turnips or w/e. They grew. I was happy.

The season changed to Fall, and I planted some more. Withered grass. Ok! Maybe, I need to only plant seasonal crops in the dungeons.
I planted a whack of Autumnal crops, &ohhello, withered grass.

At this point, I just brought a lot of food to kill the boss there.

So, now I'm in the Snow Ruins.
There are no winter crops, so I'm not even sure what to try!

Someone help me!!! How does this work? :P

1) Which vegetables can you plant in dungeons?
2) Can you plant *any* flowers in dungeons?
3) Iris told me I could plant flowers on Whale Island regardless of the season. Does this mean anywhere outside on Whale Island, or just the patch in front of her house? I am sick of wasting money!

Thanks :)