Posted: 27/07/2014 at 16:23
I wouldn't feed it any more now as any new growth needs time to Harden before the frosts zap it. Make sure it has plenty to drink though. Can't help with rust as I don't get it except on hollyhocks and then I just ignore it but remove all affected leaves and bin them as they die down.
I don't have either of your new roses so can't help with hardiness. I have Gertrude Jekyll, Sceptr'd Isle, Falstaff, Generous Gardener, Teasing Georgia, Queen of Sweden, Crocus Rose and Benjain Britten all doing well. William Shakespeare, Malvern Hills and Geoff Hamilton don't do so well buthave been OK this year after an unusually mild winter. Tess of the D'Urbevilles had to be dug up so I could dismantle her trellis to let a mini bulldozer pass and is much happier in her new home with less east wind. Hot Chocolate, Jacqueline Duprée and Munstead are new this year so have yet to be tested.
Molyneux, Grace, Guinée and New Dawn all curled up after two very hard winters in 2009 and 2010. Even Kiftsgate was nearly wiped out at -32C but has finally grown back and has been glorious this year.