Hello Carol,
Who is Susan Maria?
Well, about the butterfly houses...if I ever get one, it'll just be for decoration in our garden. I won't be getting one this year...maybe next year. Here's an extensive a link to loads of info about them. When you open the link, it will look like it's only a couple of paragraphs long, but there is a scroll bar on the right so you can read further for more info...
http://butterflywebsite.com/articles/showarticle.cfm?ID=27
About the balls of cotton...
Hmmmm...no, we don't have fluff on the ground here. I have no clue to why that's happening...sorry.
I'd love to sit and watch to see why that is happening...
Maybe this weekend you'll be lucky enough to see what's happening. Our female Goldfinches seem to be able to clench onto their fluff in their beaks without losing them as they fly away. I just don't know Carol...
I hope you'll post some pics of your butterfly visitors soon!!!!
Susan Louise
from Branford CT/ live in Lincoln NE
Zone 5