The Astrid Square is named after the Asterid family of flowers which includes sunflowers, dahlias and hydrangeas.
Aran weight yarn is required for this pattern.
Gauge for this square is not too important as long as your tension is consistent throughout.
Square size is between 14 x14cm and 15 x15cm depending on yarn and tension.
I have video tutorials for each round on my youtube/IGTV