Need large planters for trees on terrace – where to look?

I’m hoping to grow a few ornamental trees on our large upstairs terrace and need good-sized planters – deep, sturdy, and not ugly! Looking for something that looks good with brick and is designed for tree roots. Any solid UK-based recommendations?

I’d highly recommend a collection I found recently – loads of stylish yet practical options, built specifically for small trees. Worth a look. Here’s the link: https://idealistplanters.co.uk/catalogue/planters_for_trees/

Garet wrote:
Great, cheers! Do they have built-in drainage? I’ve struggled with waterlogging in some past planters – not great for root systems long-term.

Yes, most of them have proper drainage systems and you can also add risers or trays if needed. I’ve had trees in these for two years now and they’re thriving – plenty of room for roots and no issues with rot or damp.