How do I get customs blocks with properties to be generated?

[rigid stump]

I am looking for some solution to make some custom blocks with properties to be generated in the worlds

[north shale]

Be more specific. You’re being too vague.

[rigid stump]

It's that I want to make some custom berries spawn in their last stage

[north shale]

just generate them like any normal block

[rigid stump]

But how? Using the properties I need to know

[north shale]

-.-

[wind dove]

Probably using something like default state