The big green block is used in flower arranging (cost about 1 or 2 €) and you make it wet and it keeps wet a long time. Then it's up to checking it every month or two if it's still a bit wet. It doesn't need to be soaking wet but just wet enough to keep the humidity high. The water is not needed for the cuttings. You can also use moist spaghnum moss and lay the cuttings on the moss, but this green block is cheaper then moss. A must is sealing the ends of the cuttings with wax from candles to prevent intrusion of bacteria and fugi and loosing moisture from out the cuttings. Just melt the was, dip the ends in it a bit and ready.
