Garden pots are a great way to bring instant realness to a dollhouse. It's one of those little details that looks so delightful!
You can get a great variety of pots online. There are real Terracotta pots or plastic.
I was gifted some plastic ones by Miniatures.com.
Seven Assorted Fancy Planters. You can find them here: https://www.miniatures.com/Seven-Assorted-Fancy-Planters-P25036.aspx
First, there are 7 of them plus a saucer. They are the right color to start with and the detail is adorable.
https://www.hobbylobby.com/Floral-Wedding/Bushes-Garlands/Garlands/Green-Baby's-Breath-Garland/p/8668 I cut them up into little dollhouse size pieces.
Quick and painless right? Have fun creating!