Lavatera advice

As some of you may recall, I got two lovely lavatera from Crocus recently, and planted them out in my back garden against the back fence.

Night before last, our dog chased a cat who shot up onto the back fence and sat there swiping at the dog as he jumped and jumped trying to get the cat - the ned result was a completely mangled lupin plant, and as I discovered this morning a snapped stem on the lavatera, which is carrying flowers and buds.

I have cut it off, and have trimmed the bottom of the stem to an angled cut just below a point where there were leaves, have removed the bottom leaves, and have shoved it into a pot of compost. (Ironically, I loaned my rooting powder, and haven't had it back, so had nothing to do to encourage roots.

Assuming that I keep it well watered, what is the chances of this 'cutting' actually becoming a viable plant?

 

Its about two foot tall, roughly - has one flower on it, and a handful of buds. Its gone a bit floppy now (understandably), so I think I'll stick it into the shade tomorrow then its not going to dry out too fast and I can give it a soaking every night. Nothing to lose I suppose.

 

Probably is, knowing my luck - sadly, the dog made the choice for me - who says they are mans best friend? :doggiesmz: