Bunny,
Why I asked about the annuals or perennials is because sometimes when you have just one perennial it only
flowers once a year. So, maybe if you
plant one or two annual vines side of it, it may just give you the color you nee to attract butterflies...
My first thoughts though for attracting them is you really can't use pesticides...... it will kill the butterflies and catipillars...
They like warm area's like a big rock and no wind (sheltered) and they like water and or mud so they need access to water!!!!!!!!! I take a sauce for the bottom of a pot and fill it with some round dark~river rock from like a dollar store or something. Should be dark stones to attract heat while they are drinking....
Also, you should provide an area for them to "hide" in so to speak......
And you should provide an area where they can do their cystalist thing and for the catapillars to eat!!!
Here's some sites for you...........
http://www.howtoattractbirds.com/ Good reading on this one!!!!!!!!
http://www.greendealer-exotic-seeds.com/seeds/HowtoButterflies.html this one has
plant names and which butterfly would be attracted by what......
http://www.perennials.com/butterflies.html This one's from right here at this site....
http://www.thegardenhelper.com/Butterflies.htm Here's one with some vines on it.....
*note* when it says doesn't care what type of soil, and it says either, they are very tenatous......For wisteria you need a very, very sturdy thing to hold it up!!!!!!
I'm going to get to bed it's been a very long day,
There's lots of good reading there.....read it over and tomorrow I'll send more....
Here's one more on your trumpet vines......
http://plantsdatabase.com/go/644/ Will send more info tomorrow!!!!!
Happy reading!!!!!!!!!
Weezie