There are lots of ways to make miniature trees for your scenes, dioramas and other projects. This is a unique and different way to do it and it was suggested to me by a web visitor. (A tip by Jennifer Atchison).

She also tells us how she does it:

I find this technique works best with 32 gauge wire. but use steel wire so it will hold its shape at that small size.
The glue is just white glue mixed with water. if the glue is too thick, it will block up some of the detail. 
I connect the ground wire to the bottom of the trunk, since its a wire tree, that electrifies the whole thing.  Be aware that under certain circumstances, a steel wire tree can become slightly magnetized this way, so keep metals away while you flock. 

Will has a youtube channel with over 600 videos on projects you can make. Check it out right here

The completed trees that we made

And here is one of Jennifer's trees before and after the flocking:

How to Do it:

Materials Used:

• Wire (Ideally 32 Gauge) but you can vary this for different size trees and we tried florist wire, craft wire and aluminum wire. They all worked well.
• Mod Podge or white glue. It can be watered down but if it falls from the wire and doesn't stick you can try undiluted.
• An electrostatic flocking machine - Here is the company that makes this machine
• Flocking
• Some pliers to bend and twist the wire
• Various accessories you would like to add including paint and a pot
• Optionally some foam or pieces of foamboard as a temporary base

Here is the flocking tool that I use. It holds two D batteries for power. There is a sieve on the end and notice the white wire with a banana clip on the end of it.

You fill the sieve with the flocking material.

Cut up plenty of lengths of wire. The more lengths you make the more complex your tree can be.

Bend and twist the wire into a tree shape. And you can research trees to get a sense of their shape.

Optionally you can hot glue your tree to some kind of foam or foamboard base. This is temporary and it also gives you protection from getting little zaps from the electrostatic flocker.

If desired you can paint your tree. Let it completely dry before applying the flocking.

Now we want to apply glue or mod podge to the tree. You can put a dollop of glue and a dollop of water in a container like this. Then you can manage how much of each you apply to the wire tree.

Apply the lead of the flocker to the tree.

Apply the flocking. do a first layer and let it dry. You can then add little dabs of glue and add a second layer.

This picture shows a first layer has been applied and dabs are ready for another layer of flocking.

Now you can have some fun with it. Add it to your diorama, or create its own little potting scene like this.

More Trees at Amazon.com

Saver Portable Electrostatic Handy Grass Carpet Applicator Micro Flocking Machine for Architecture Model

Descriptions: Portable Type Electrostatic Handy Grass Carpet Applicator Micro Flocking Machine This flocking machine is the outcome of adoption of new technologies and new processes after repeated test and research on the circuit board. Circuit inside the handle with low power dissipation and high voltage output, makes this flocking machine quite strong flocking capacity. It is easy to operate, lightweight, and of long working life. Suitable for planting, lanscape, construction, railway models. Specifications: Power supply: 2x1.5V battery (Batteries are not included) Material: ABS Plastic Color: As shown in pictures Total Length: 35cm Handle Diameter: 3.6cm Bottle Height: 11.6cm Bottle Diameter: 9.2cm Weight: 321g Note: No touching the wire net when machine operates HOW TO UES: 1. Half bottle of grass 2. Put the high-voltage wire hanging on the bottle mouth to connect the wire net 3. Coat with cement on the surface where to flock 4. Insert the ground wire into a place near the flocking surface 5. Power on 6. Press operation button and wave up and down 7. Grass flocking fall down on the surface Package Included:cluded: 1x Mini Flocking Machine 1x Manual 1 Bag of Green Flocking

What is electro-static flocking and how do you do it?

It is a great way to make grass that actually stands up on the terrain just like real grass. I have a video tutorial showing you how to do it right here: Electrostatic Flocking

Will's Book on Diorama Making

How to Make Fantasy and Medieval Dioramas

This books shows you how to make fantasy and medieval dioramas using many commonly available tools and materials. There are over 100 pictures and illustrations showing you how to make great dioramas in fantasy and medieval styles. Chapters include basics, water effects, terrain tips and special effects like electricity and small motors. Tutorials include how to use foam, plaster of paris and paper mache to make great looking dioramas.