how do I know which plants can share a large container?

[WriteforFun1]

My balcony plants have arrived - well they arrived a while ago but the company supplying the pots let me down..grr...

anyhow, I'm now wondering if I can plant any of them together in a trough. They have been delivered as very little plants and I don't know how much the roots will spread in a container or if it's a bad idea to mix them up.

I have jasmine, choisia, bougainvillea, ivy, blue leadwort.

I also thought it would be handy if any could be planted together because they are less likely to topple over in the wind.

Also, how many times is it okay to repot these - I have no idea whether they will grow to be quite big, mum reckons with proper care, they should but they are all only about 15cm tall at the moment. So not sure if they should go in the size of pot/container that I expect them to grow into - that's what I'd be inclined to do because surely it's the equivalent of planting them in a garden?

hope this makes sense. I clearly need "gardening for beginners"!

[shovetheholly]

You'll be absolutely fine!

I think sometimes something just 'clicks' with gardening - and it can happen at any age. More than anything, the difference between success and failure with any plant seems to depend on keeping an eye on it. I guess if you look at something every day, you spot problems early - whether that's pests, overwatering, underwatering, whatever.