Where to Find and Catch Seedot
From Pokemon Go Wiki
Seedot are found and captured in Nest and Habitat locations.
Nests
Seedot Nests are locations that consistently spawn Seedot.
Habitats
Seedot Habitats are spawn locations where Seedot is likely to be encountered, but not guaranteed the way a Nest is.
Additional Tips and Information
Best Nests
If you know a really good nest or any of the nests above is really good, list them here: