Dr. Jim McEown of Phoenix Bonsai Society put on a great demo last night during our club meeting. Blank cement slab to start off with. He epoxied 19 gauge hardware cloth to a slab to provide tie down points. Placed some great looking foemina trees and mucked them in with a mixture of clay/peat/sphagnum moss. Top dressed with locally sourced red volcanic rock. All in about 1.5 hours.