Playing in the Poppies is a pretty little Granny Square that is compatible with 80% of my other patterns! The poppy is one of my favorite flowers and it’s medicinal!
Tons of pictures and a full YouTube tutorial come with this pattern.
With a 4mm hook and worsted weight yarn, my squares come out approximately 5 ½ x 5 ½ inches unblocked. I recommend doing a test square to gauge how big yours will be as sizes vary with different yarn brands and colors (even if the colors are all the same brand and weight).

List of my compatible Granny Square patterns…
MaryJane
Granny’s Eye - Alternate Version
Alien Head
Grandpa’s
Magic Toadstool
Night Owl
Granny Burger
Strawberry Pop-Up’s
The Great Granny Pumpkin
Classic Candy Corn