Step 1:
I used 6x6 inch papers for the flowers. Prefold in half four times.

Step 6:
Fold the flap downwards.
Then, repeat step 3 to 6 and the backside.

Step 5:
Fold the edges downwards over the prefolded lines.

Step 2:
First, valley-fold over the two lines on the bottom right. Then mountain-fold over the two diagonal lines. And valley-fold over the two lines at the top left.

Step 4:
Fold the tip upwards.

Step 3:
Prefold over these two lines.

Step 10:
Fold over these two lines, repeat on the other three flaps.

Step 8:
Sink-fold over the outer prefolded line and fold the center upwards over the inner prefolded line.

Step 9:
Push the model inwards and flat, so it gets the same shape as in step 7 again.

Step 7:
Prefold over these two lines.
Then open the model from below by pulling the four flaps outwards.

Step 16:
Fold over these two lines.

Step 15:
The leaf paper is 3x3 inch. Prefold in half, then fold over the two outer lines.

Step 12:
Fold the tip of the four leaves upwards and press the yellow center flat.

Step 11:
Fold the four flaps outwards.

Step 14:
Done....
Fold enough flowers for one plant.

Step 13:
Open up the four flower petals.

Step 19:
Done....
Make about 25 leaves for one comnpleted plant.

Step 20:
The main stem of the plant is made by wrapping a long (crumpled) paper rectangle around a strong metal wire. I made the base of the stem extra strong by using more metal wire.

Step 18:
Fold over the prefolded centerline (make a small edge / vein) and crumple the leaf inwards a little.

Step 17:
Press the tip flat from aside by folding over these lines.

Step 21:
And the main stem is done. The base of the stem is placed in a pot filled with pebbles.

Step 24:
Everything is glued together into a wavy looking plant.
Finally the flowers and leaves are glued to the plant, the flowers facing upwards.

Step 23:
And make 3 to 5 small twigs, the same way as the branches.

Step 22:
Make two or three medium size branches. They're made the same way as the main stem, but they're just smaller.