Step 1:
The leaf papers have three different sizes.

Step 8:
This is an example of how the leafs are glued to the stem.
Make 6 to 8 of these large leafs.

Step 6:
Make 4 to 6 leafs in each size

Step 9:
The base of the large leafs are placed in a pot filled with pebbles.

Step 5:
Done.....

Step 7:
Fold a long rectangle paper around a metal- / florist wire.

Step 3:
Fold over these two lines.

Step 2:
Prefold in half, then fold over the two outer lines.

Step 4:
Fold over these two lines and curve the model.

Done!
This is a DIY video for making the Fern plant:

Picture: Origami Lavender, Lilies and a Fern plant