Thank you Lollykoko, pa_friendly_guy & Matt for the replies (and encouragement). My banana will now be referred to as "lucky" from now on (thanks Matt LOL). I also get pleasure from seeing things growing and, although we are getting some really hot days this summer (quite a few about 39 degrees Celsius so far but expecting up to 48 degrees Celsius before the end of summer) the garden seems to be holding up pretty well. Vegetables are doing OK - half are in buckets with holes drilled for drainage and the other half are in raised beds with shademesh over the top to protect them from the direct sun - not very pretty but practical. 3 raspberry patches (about 6-8 plants in each) - one patch has been severly burnt by hot north winds and has only two raspberry plants still green, but I'll leave them alone and just keep watering every few days and see what happens.
We can now get "moringa" plants here - "miracle tree" from Africa (also known as a drumstick tree or horseradish tree) and the plan is to get one in autumn (your fall) so that it can establish itself before next summer. Have you heard of them?
FYI http://www.youtube.com/watch?feature=pl ... rl5mf_qF3M