What’s the Four-Leaf Clover decor and how do I unlock it

[superspltmaster]

I have all the clover decor, and it doesn’t mention anything about a 4-leaf clover decor
Is it a decor level thing like waterside ect.

[lavista1960]

Although it is different from waterside etc, it can be considered a rare decor. It can be obtained very rarely from seedlings in parks.