I'd have a real problem choosing just eight but here goes,
Rose Mortimer Sackler (to remind me of an English summer).
Bougainvillea (always wanted to grow one but never had any success)
Native primrose (my favourite spring flower)
Douglas Fir tree (well you have to have something to hang your homemade Christmas decorations on)
Wisteria (if I had perfect growing conditions I might get one that bl**dy flowers)
A silver birch, (lovely dappled shade - my favourite tree)
Orange Tree (not worried about variety just wouldn't want to get scurvy)
Foxgloves (love the flower and you never know when you might to get rid of unwanted visitors)
Now for the book - can I cheat and take a solar powered kindle? If not then I think I would take Robinson Crusoe, never read it and somehow it seems appropriate.