Over the..I'll have to say it.."decades" we've had a variety of pots some fractured in the cold weather, but for a number of years, apart from two forty year old concrete ones on each end of the steps in front of the French windows, I've achieved some uniformity with Apta glazed pots for our roses. These come with a ten year guarantee.
We've ten on what we pretentiously call our "rose patio" and a further six on the patio in front of the French windows. They all sit on green plastic pot movers. But in early May I take the castors off the movers. This means that the wind is less likely to blow them over which could mean the pot breaks. You can still slide them about, but they don't often need moving. I drilled a hole through the bottom of the movers, so water will drain out in the winter, but now these holes have their usual dab of silicone over them so they will retain some water as they get very warm in the summer months from direct and reflected heat.
They are all the same size except this one on the front door plinth, which is the biggest size. Presently it houses an azalea in a plastic pot, so we can ring the changes if we choose. It has a block of wood inside which I've screwed to the plinth through its drain hole, as I'm otherwise likely to knock it over draging the garden hose round it to water the front garden.
We've two large plastic containers with a mimosa and a sambucus. They share the centre bed in the lawn in their flowering season and rest on the small patio behind the shed. The low growing azaleas are supposed to hode the contasiners, but, "they are taking an unconscionable long time in a doin' it."
