[Jim the builder]

I have an empty allotment plot next to mine, I am considering seeding it with clover to attract bees however I am concerned that when the flowers die off and it goes to seed they may spread onto my plot. Does anyone know how clover seeds are spread?

[simonwatson]

Looking at Google images of clover seeds, they are pretty small. Therefore I would suggest wind-borne. However, as they are small and round with no sail like dandelions for example, I'd suggest they wouldn't go very for. Creeping spread would be my best guess.