How do I get these HHA items?

[Belle T]

I'm at level 87, I've stopped getting new crafting items and animals to meet a while ago. But I can't craft these and I'm pretty sure they're not event items. How do I get them?

 

[Snowesque]

Hello, here is a list explaining how to get every flower item.

 

[Belle T]

Thank you, that helps! ♡
I completely forgot flower trades were even a thing!