I am interested in trading, but like you, I like to do trades for multiple plants. Take a look at my list..I see you like echinaea's and i have two types.

I have a Dalechampia dioscoreifolia for trade if you are interested. Please send me a private email if you like to trade. Thanks!

Climbing/ramblin' Roses and Clematis are good perennials that have a reputation for staying where you put them, from the ground at least. Some roses could easily overwhelm a trellis and need to be researched individually. They also need help (you physically putting the stems where you want them) and often some kind of attachments to stay ON the trellis. Clematis will grab on themselves and come in types that you never prune, and 2 other types that require different types of pruning. IMO, the easiest ones are those you never prune (although there's still dead stuff that you'll probably want to remove occasionally) or the ones that always die back (but again, leaves you with a lot of dead stuff to remove.) Woody perennial vines can become too big and heavy for some support structures. This is , for example. Taking your lifestyle/gardenstyle, trellis style, personal preferences, etc... into account in conjunction with these things can make it difficult and confusing to garden with vines. Nothing wrong with wanting Akebia/chocolate vine. I did too until I saw an infestation of it in person. Not really what I had in mind in my tiny suburban yard at the time. Sounds like it's not for you either, so it's really good that you asked about this while it's still small enough to easily remove. Garden mistakes can happen to anyone, don't give yourself a hard time. I think your husband will be glad to know you've discovered an error in time to fix it before it becomes a problem. So that's a good job you've done. I've never told anyone to take a plant back where they bought it before, but I'm telling you that today. Hope that's an option for you. Curious what store was selling it? To proceed, you may want to find what else is available to you in stores, then find out if they suit your needs. Try to go by their names and not what they look like as a tiny baby in a pot. Perennials, especially vines, take 3-5 years to really get going strong. You can research (by googling/asking on forums) bloom times, growth type, maintenance required, then select one that will be a good decision. The good news is, most vines I can think of are a lot more attractive in terms of pretty and/or fragrant flowers, or offering some nectar or food source, to bees and butterflies. If deciding is difficult, it's not too late to try some morning glory seeds for this year where you are removing the other. Planting a perennial vine is not a decision you want to rush.

The akebia will be too vigorous and take all the water and nutrients from most clematis so I personally wouldn't plant them together. If you do try it, you might want to try a clematis that is very vigorous and a type I or II since the type IIIs will need to be pruned each year. One of the clematis montanas could easily overpower the akebia, but even it would need extra water and nutrients until well established.