My inspiration for model railway trees dates back to the 1970s. We always believed that, no matter how good the track, stock, buildings and scenery were, model railways were always let down by the trees. There did not appear to be a good way to build a realistic tree. Then I saw Pendlebury by Bert Topping in a couple of magazines of the day. There is a picture of one of his trees here on rmweb. Page down through the post. As I remember it, his methods involved blitzing (using a blender) dyed, frozen, wet, foam to make the leaf cover; this was the big difference. It was held in place using rubberized horse hair. One of the features I liked in the Pendlebury trees was the observation that many trees have trunks split quite low and progress to the canopy as two trunks. I wanted to model this in my tree. 

Another more recent inspiration, as for many, is Gordon Gravetts Modelling Trees Part One. 

I was not going to achieve these standards but inspiration is really important.

Now Woodland Scenics and other manufacturers make foam based foliage for us. No messing about with dying and blitzing! My method for this tree was to use stripped 13 amp flex & solder for the trunk and Woodland Scenics foliage for the leaves. My layout is set in late summer so I need predominantly green scenery. The method was nothing special. First one end of the stripped flex was soldered to lock the strands together. Then the branches of the canopy were formed by twisting out the strands of the copper flex in to a tree shape. Each branch node was soldered to hold it in place. Once I had formed the shape I applied flux to draw in to the remaining parts of the tree shape and then applied solder to hold the whole structure firm. At this point many apply a texture but I decided the small scale meant this was not necessary. The solder had already done the job.

This was then spray pained to a dull grey/brown colour.

Since the model is set in late summer I applied a dense cover of Woodland Scenics mid green foliage teased out as finely as possible, using PVA to hold it in place. It was finally given a spray of Scenic Cement to firm it up.

Plonked on the layout