Looking for a pale oak garden bordering a plains biome

The mountains can be anywhere or nowhere, they aren't important, same with the oak becasue i can basically plant what i want. The plains could be all flower feild or there could be no flower fields, what's important is that there's some variation of open feild next to a pale garden. This might be more possible on a large Mountain plateau and just terraforming and planting it, but I'd love a plains biome connection to be possible.