When can 6 people, all from different households, meet in a private garden?

[Titsywoo]

I can't quite work it out. I can see that the rule of 6 applies outside from 29th March but that seems to be only 2 households?

It's 2 households or rule of 6

As part of step one, there will be further limited changes from 29 March, the week in which most schools will break up for Easter. Outdoor gatherings of either 6 people or 2 households will be allowed, providing greater flexibility for families to see each other. This includes in private gardens.

Isn't it 6 people OR two households of any size?

Its up to 6 from different households, or any number from only 2 households.
A lot more sensible than rule of 6 only as some families have 6 or more members!

Does anyone know if under 5s are included or excluded from the rule of 6?!

Children are included but if two households you can have any number of children within those 2 houses .

So, after the 29th, your child could be invited to a birthday party in the garden, with 4 other children, and the birthday child. Ie 6 different children, from 6 households?

Oblomov - Not if an adult is there as well serving food, organising games etc. 6 in total.
But 5 children + 1 adult would be permitted in England from 29 March.