On the bright side, the rosemary tree has been in for nearly 24 hours and still isn't dead.
Also some more fabric came. I actually spent @ £1 per metre on this (including p&p, of course).
It's a not-too-lightweight polyester, very pleasant, around 60 inches or 150 cm wide and roughly 20 metres long. Fortunately I do have a plan for that. Though I may have to ask DH to help me fold it.