Novice gardener. I'm looking for a large planter pot to grow a rose bush in. I prefer white ceramic but told they tend to crack etc I'm also worried about wear. Ive looked at some in a local garden centre but their prices nearly gave me a heart attack 
Can anyone advise on the best quality planter pot to use outside? and also where to buy some from at really good prices.
i don't want plastic ones. Another idea i have is to buy a large wood one and paint it white? does this sound like a plan?
I'm in Hertfordshire area, but also could buy online if i get a good recommendation.