Novice early planting

[Two_Sheds]

I just thought that as they are a large bulb, there would be a minimum size pot to allow them to flourish.

Generally, you pot on. That is, replant into a larger pot as the plant gets bigger. If you sow seed into a too-big pot early on, the compost spoils.

[zazen999]

I just thought that as they are a large bulb, there would be a minimum size pot to allow them to flourish.

There will be eventually; but for now they can be left shoulder to shoulder. Once you have moved; they can go into their final positions in wide pots to grow on or in the veg patch. They can stay shoulder to shoulder until the last frost date wherever you are.