Oh well, it doesn't really matter, use what you've got. I did once resort to painting a brown pot with blue emulsion paint - which lasted remarkably well, so it fitted in better with my colour scheme.
Pots of different colours and styles huddled in varying sizes may add a nice naturalistic look. Part of pot planting is to include container colours and surfaces as part of the design. Large metal pots you can paint up to give it a two-toned effect against wood and clay pots. That should make even plant leaves look interesting.
You could 'go large' - have quite a large pot with a small multi-stemmed tree in the corner so it stands to the right of the window and then a mixture of smaller ones clustering along towards the door and down the driveway. Or you could have a bigger tree pot part way along the drive to make a slight enclosure with smaller pots between it and the house. You might need to use a square pot for the tree if it''s windy there, so it's less likely to blow over.
A bit of height would have much more impact in what is quite a large area
Gardening on the edge of Exmoor, in Devon
“It's still magic even if you know how it's done.”
Small or dwarf versions of lots of garden trees have been produced. Prunus or cornus kousa or malus would all be fine if you get ones grown on dwarfing rootstocks or that are naturally smaller. If you're willing to take the time to prune it regularly, a dwarf lilac would be lovely - they can look stunning - but they aren't easy container plants. Or one of the hardier trees that will put up with being pruned hard to keep it small - the RHS site has a few suggestions https://www.rhs.org.uk/advice/profile?pid=274#section-3
Gardening on the edge of Exmoor, in Devon
“It's still magic even if you know how it's done.”
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As a general rule then, safe to have a quite a few pots (odd numbers) and plants providing there's a variation in size etc?
Or you could have a bigger tree pot part way along the drive to make a slight enclosure with smaller pots between it and the house. You might need to use a square pot for the tree if it''s windy there, so it's less likely to blow over.
A bit of height would have much more impact in what is quite a large area
“It's still magic even if you know how it's done.”
Bonus points for anything the pollinators like. Try to grow such plants as much as possible.
Or one of the hardier trees that will put up with being pruned hard to keep it small - the RHS site has a few suggestions https://www.rhs.org.uk/advice/profile?pid=274#section-3
“It's still magic even if you know how it's done.”