It's very hardy.i bought it at a clearance sale late in the summer,beggining of fall,and it survived the winter no problm.no mildew,rust and pests.not many blooms,but the ones she have are beautiful

I have a clematis planted in the same hole as most of the roses on my Rambler Fence. When I was planting the roses, I dug the hole a little wider and popped the clematis right beside the rose. There's no way I could separate them now, and probably no way that I would want to. If you planted this two springs ago, I'm not sure you've seen all that Princess Diana can do. I don't think netting is necessary, but a piece of string or two to get the vines started upright could help. As a combination, Princess Diana may be too delicate for your monsterous MC. I grow mine with Jeanne Lajoie, and it blends well with the lighter canes and foliage, providing a good background for PD's bell-shaped flowers. Clematis is what I grow to teach myself tolerance. I prune my ramblers in the winter and I espalier them exactly the way I want them to be, keeping the spring show of flowers in mind. The clematis comes along in the spring, making its way willie-nillie up into and over the ramblers and I have absolutely no control over how they grow and where they bloom. Some years I get a great show, with clematis flowers interspursed with rose flowers and my planned combinations are beautiful. Other years, the clematis ends up growing too much one way and blooms in a clump (like tangled Christmas tinsel) and I have a big blob of purple or pink throwing off my carefully planned composition. If you decide to dig out your clematis, I doubt you could hurt that huge MC of yours. Do whatever will please you the most. Connie

The pic seems to come from the Kensington palace twitter account- ie, some PR person found a pic of a nice looking lady with a nice looking rose in the crowd shots - both the PR person and the nice looking lady probably know nothing at all about roses except that they want to pay respects to Princess Diana and that there's a rose named after her. However there is a rose called "Princess of Wales". Its a white floribunda from Harkness http://www.helpmefind.com/gardening/l.php?l=2.19234.1&n=15764&tab=1  and according to HMF is available in the US and quite a few other countries. Whether its the rose pictured in that twitter post is another story. On rereading this, It seems a bit snarky- sorry, its not meant personally- I have spent the evening trying to wade through internet disinformation/marketing to look something up..and its starting to show.

I have Ernest Markham (deep purple/red) if you'd like to exchange that.