Step 1:
I used 3x3 inch papers for the flowers. Prefold in half four times.

Step 6:
Prefold over the purple line, unfold the model afterwards.

Step 5:
Fold along the edge.

Step 2:
Fold the right part in half two times, unfold afterwards.

Step 4:
Fold the edge to this spot, use the prefolded lines as guidance.

Step 3:
Fold in half.

Step 10:
Fold the edge outwards.

Step 8:
Prefold in half (or make sharper prefolded lines) over these six purple lines.

Step 9:
Fold over the prefolded lines, into a basic shape.

Step 7:
Fold or cut over these prefolded lines, into a hexagon shape.

Step 16:
Repeat step 15 on the other five petals.

Step 15:
Open the petal and squash-fold it against the center.

Step 12:
Press these three edges against each other.

Step 11:
Repeat step 10 on the other five edges, see purple arrows.

Step 14:
Press the petal flat from aside, see the two arrows on the right.
Turn the model afterwards.

Step 13:
Fold the other three edges to the right, inside the petal, see purple arrow.

Step 21:
I made some flowers with a 3 inch stem, a few more with a 2 inch stem and about 15 loose flowers.

Step 19:
Glue the stem into the back of the flower.

Step 20:
Done....

Step 18:
I used papers of 2x2 inch and 2x3 inch for the tiny stems. Fold in half three or four times.

Step 17:
Done...
I used about 30 flowers for each flower cluster.

Step 22:
The main stems for the flower clusters are made of three or four 6x6 inch papers glued together.
Make a few folds on the edge first, see purple lines as example.

Step 28:
Finally, I glued the loose flowers to the cluster.

Step 25:
I rolled up a small stack of (magazine) papers and inserted the main stem into it.

Step 26:
First, I glued the flowers with 2 inch stem to the top of the main stem.

Step 24:
Done, the stem is strong enough to hold the flower cluster.

Step 23:
Roll up, use glue or tape.

Step 29:
And one flower cluster is done!

I made three flower clusters for my allium flower.

Step 27:
Then, I added the flowers with 3 inch stem.

Step 30:
The leaf papers vary from 4x4 inch to 6x6 inch.
Prefold in half, then fold over the two outer lines.

Step 31:
Fold over these two lines.

Step 32:
Fold the lower part in half, see purple line.
And curve the top of the leaf outwards.

Step 33:
Done.....

Step 35:
The leaves are glued to the lower part of the main stem.

Step 34:
Make about 10 of these large leaves.