Bulb combinations in pots
If the pots are smaller than about 12 - 15 inches diameter, and they're the conventional shape, it's almost impossible to get a good result if you want large bulbs in the mix. There just isn't enough room, even if they're sitting next to each other. You have to bear in mind that the pot is quite narrow at the depth you'd have to plant them at.
For big bulbs, use a straight sided container. That way, you have the same amount of diameter low down, as you do at the surface.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
I have a question re allium azureum. Is it okay if l plant them in pots and space them quite close together ? I know the theory is that it's okay to do that with tulips and narcissi, but l am not too sure about alliums. Many thanks for any advice.