Just added tonight, 6mm (1/285th scale) ready to use hedgerows. Base is made of .060″ (1.5mm) acrylic for durability, base is covered in ground covering and then hedges are applied.
Hedges are random height but most fall within a range of about .2″ to .4″ tall (5mm to 10mm) with most being about .25″ tall.
There are three packages, the first contains 3 pieces of hedge row at 6″ long, the second pack contains 3 each (6 pieces total) of 2″ and 4″ hedge rows, and the third pack contains 2 each of 90 degree and 45 degree corner pieces.
You can find these items and other cool 6mm scenery bits here: