Antipodes
Queen Bee
One thing I can't grow here are passionfruit. High value at $1 each, but after 4 attempts I give up. I got one to grow really well, but it only ever produced a couple of fruits so I cut it down because it sent out suckers everywhere from the root stock. Still producing them 6 years later!!. Others in Tasmania grow them really well and I remember the one as a child with a stem like a great anaconda.Some things are remarkably different and better tasting .. sweetcorn straight from the plot into the pot far exeeds anythng you can buy. Broad beans - again fresh from the plot have an amazing taste compared to the ones that have sat in the supermarket for days. Runners that yuou pick when they are still young and have not achieved the leathery, stringy state that seems obligatory for ones sold in shops. Cucumbers grown in well fertilised soil. Parsnips - end of - so different. All soft fruit. Tomatoes.
There are other things that don't seem to much improved in home grown varieties ... swede - indeed, most root crops except parsnips, courgettes (although I grow them for their quantity - although after the first six weeks we usually run out of recipes to cope with the continuing glut and they are devoid of taste anyway !).
Some things I just can't grow - peas - something eats the shoots, carrots - hate the clay soil, most greens and cabbage related crops (insect and snail damage).
I think there is a feel good factor in eating what you have grown, knowing where it has come from and that it is organically grown - sometimes being able to share your good fortune in a glut with friends and family - little goes to waste from my allotment.