Each petal is made by folding squared cloth into three halves with a pair of tweezers.
Maru-tsumami and Ken-tsumami are folded the same way up to the second process shown below. After the third process is different.
1. Fold up
2. Fold down
3. Pinch little bit above the center.
4. Spread up the two parts below to the upper corner .
5. Adjust the petal.
This describes Starch glue method. The way of fixing petals depends on the method.
On this website, we have information for the starch glue method, craft glue method and sewing method.