I wonder if a drip irrigation system might be good once you have decided what and where to put things. Although they are movable and variable set ups you can buy.
It would give you more time to sit and admire it at the busiest watering time in the summer.
That is once you have decided what and where to plant things.
Using big planters would also mean you could use some obelisks to put small climbers in. There are some very nice smaller clematis cultivars especially bred for pots and planters. So the supports would not need to be huge or that expensive.
At the risk of seeming partisan or advertising, ( I swear I am not but ...) Evison is know for breeding these very charming groups. I was not keen until I bought a couple last year, because I needed to make postage worthwhile and the ones I chose were on offer at the time https://www.raymondevisonclematis.com/collections/boulevard-compact-patio?page=2
And you can choose a group two or three clematis if you can manage to cut through the stems at around a foot high in the spring. Could you manage that in the planters? I hope so.
We have a couple of smaller thick wire obelisks that fit into large pots and are quite solid and stable. Something like that in the planter you have posted with some things hanging over the sides too.
@Fairygirl mentions hardy geraniums and I would like to second that. Geranium cantabrigiense Biokova is a good one as it is semi evergreen, as is Geranium macrorrhizum. They are both very easy to propagate and grow well in sun or shade.
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Although they are movable and variable set ups you can buy.
It would give you more time to sit and admire it at the busiest watering time in the summer.
That is once you have decided what and where to plant things.
Using big planters would also mean you could use some obelisks to put small climbers in.
There are some very nice smaller clematis cultivars especially bred for pots and planters.
So the supports would not need to be huge or that expensive.
At the risk of seeming partisan or advertising, ( I swear I am not but ...)
Evison is know for breeding these very charming groups. I was not keen until I bought a couple last year, because I needed to make postage worthwhile and the ones I chose were on offer at the time
https://www.raymondevisonclematis.com/collections/boulevard-compact-patio?page=2
And you can choose a group two or three clematis if you can manage to cut through the stems at around a foot high in the spring.
Could you manage that in the planters? I hope so.
We have a couple of smaller thick wire obelisks that fit into large pots and are quite solid and stable.
Something like that in the planter you have posted with some things hanging over the sides too.