I think Madison is supposed to be a more cold tolerant type. IâÂÂve planted it outside twice and it died both times (Winter cold). I was thinking of growing it as a houseplant for a couple of years hoping a bigger plant would take the cold better. HavenâÂÂt tried it as a houseplant yet, so would love to hear if it would work. If you decide to plant it outside, IâÂÂm pretty sure it doesnâÂÂt like full sun. Here is a link that might be useful: Google book result about trachelospermum jasminoides madison

Sometimes things get confused due to lack of a scientific name. In my case, I speak of trachelospermum jasminoides, which is identified as being both confederate jasmine AND star jasmine. In the south it is referred to frequently as "confederate," and the USDA Plants data base shows it native to the entire states of Lousisiana and Florida, but does not show it as native to Alabama....which I consider as a slap to our southern heritage! :) It is also shown to be hardy to zone 8A at least. I do not think this particular trachelospermum is a true jasmine, it is more likely just a jasmine scented plant, thus they added the "jasminoides" to it, but I'm not a botanist or a horticulturist, so cannot speak for the intent in nomenclature. I would recommend checking on the scientific name of any plant, since anyone may mistakenly call a white blooming 5-petaled scented dark green vine a "star" jasmine because they think that is what it is. But trachelospermum jasminoides, AKA star jasmine, AKA confederate jasmine, is a pretty tough customer, and has endured the last two years of really cold winters here in Mobile (zone 8B) unprotected, although I must admit the plants were mature and huge, and did have a little bit of browning on a few outer leaves. Besides the 100 foot of these planted on my 7 foot tall privacy fence, they are just new last fall and have not grown that much (they take off and GO their second year), I also have these: The massive column of dark green is ONE PLANT of trachelospermum jasminoides, over 8 foot tall and about 4 foot in diameter plus many runners on the ground looking for things to wrap around and climb. It does not attach via platelets like ivy, it just twines and climbs: Here is that plant in full bloom ...ONE plant: And this is what that ONE PLANT looked like in April 2008, I think the 2nd spring after I planted it: after the second year, stand back, because it will be settled into its site and ready to reach for the skies!!

I don't have experience with Confederate jasmine and an aluminum fence. I do have a chain link fence (which I assume is the same as an aluminum fence), and it actually has trees growing through it, but it hasn't affected the strength of the fence. So I'd feel pretty sure that the Confederate vine won't do any damage to yours, but hopefully others will chime in as well.

Asiatic jasmine is highly roundup resistant. You can spray weeds in it using the normal concentration of roundup with virtually no effect on the asiatic jasmine. I would avoid periods when the jasmine is in very active growth however. This will be evident from the presence of many light green leaves. Do not use this treatment with confederate jasmine. Asiatic jasmine is highly invasive and has a very deep root systems. It is difficult to kill or dig up. I would not plant asiatic jasmine in a non-restricted area. Between a sidewalk and a paved street would be OK, but even then you would have to keep your eye on it and mow or weed eat it at least once a year. It is used a lot in commercial plantings as a ground cover between paved areas.