Any clematis growers out there?
I rooted several cuttings using this method: http://lodgelanenursery.blogspot.com/2011/06/how-to-take-clematis-cuttings.html
I rooted them about eight weeks ago in tall 4" pots filled with sterile "seed starting" medium and using rooting powder. I covered them with old gallon vinegar jugs with the bottoms cut out and the top cracked open to keep them moist. Then I placed them on the ledge of the porch where they got good light, but no direct sun.
And, I am pleased to say, they all rooted. The leaves are looking a little tired, but still green.
Now that they are rooted, I'm thinking they might need a bit more in the way of nutrients to keep growing. Should I re-pot them in larger containers with organic potting soil + some worm poop?
I can't seem to find satisfactory info on the interwebs about the next step. Most say to overwinter them indoors and plant out in Spring, but nothing about when/if to re-pot in the meantime.
FYI, the cuttings were from a Clematis Jackmanii like these:
= new reply since forum marked as read
I got the cuttings from a neighbor, so they should do fine in the ground once they are big enough to survive the shock of transplant.
I'll let you know how it goes come Spring (or if anything exciting happens over the winter. 
)
I seem to be overwintering a lot of things lately. In the past--and I will probably do this again--I brought a large green pepper plant into my guest bedroom. It was a little "buggy" at first, but I did get quite a few peppers from it. 
The tricky part was getting the lighting just right as the slant of the sun's rays would change. I spent a lot of time moving it around the room.