I'm looking for some mandevilla vine cuttings. Check out my trade page for any seeds/cuttings you would like to trade.

Can finally reply to the original question :) Just brought our Mandevilla plants out from the crawlspace. 2 of them were the ones Lynnencfan mentioned above (3 years ago- wow!), and the 3rd one was from a tip cutting I took in Nov, 2008 before we stored them for the winter. The cutting in question was from new green growth, and about 8" long. I rooted it in water for about 2 months, then potted it up (4" pot) and kept it in a South window during the winter. Last spring, it got repotted into a 10" pot with a 3' tomato cage for support. The vine itself probably grew about 10 total feet, but I kept it wrapped around the cage. Did not flower last year. I didn't cut that one back but put pot and cage under the house for storage. Just brought it back out this morning, and there's an abundance of nodes just waiting to pop out with new growth! So yes, they can be propagated from cuttings. Hopefully, we'll get some blooms this year. I'll report back in this thread again on the plants' status this summer. In the meantime, we also had 2 viable seedpods from the older Mandevilla last fall,and I'm getting ready to pull the seeds and sew them today. Will also report back on their status later in the season.

Since mandevilla cannot tolerate temps below 45 degrees, I would think this would not be a good plant for a screen. If you plan to put them in pots and overwinter them somewhere, perhaps it could work, but that seems like a lot of work to me. How about an evergreen passiflora? This would give you beautiful blooms as well as hiding the fence with green foliage.

Lady, don't cut it - just let it grow. The most important thing is to let it adjust to the light difference GRADUALLY so it doesn't burn and thus die back. I wouldn't change the pot just now - let it get adjusted to the outdoors, water it well, then buy a pot just FOUR INCHES bigger in diameter. W hen you take it out of the pot it's in now, DON'T disturb the root ball - plant it gently, and it will not even realize it's been repotted. Water it well with some vitamin B water, and it will be happy!