I would largely stick with what I've got. But where I have one I would have groups of 3. More space, groups of 5.
They are loads of plants really I'd like got some Gunnera seeds and aralia ( better if it were variegated ) in a Chiltern seed bargain basement mix, I tell myself hope they don't germinate cause they is nowhere to put them but secretly deep down I really hoping they do I'll solve that problem when I come to it . I did buy a Christmas present recently for myself been after a stewartia for a few years, I lost out on a small plant early last stewartia sinensis but I come across another variety just before xmas they had one left so I snapped it up, its a stewartia monodelpha its a much bigger plant than I thought I were receiving and nowhere to put it yet until at least the shed falls down , idea was to grow a little on one for a few years .
I actually have quite a big garden by London standards, at least, but the bottom half floods.
Would like some chickens too