Collecting & Propagating (Peers)
Bob Shatsky on collecting redwoods and after-care
Has mixed feelings about pumice, that it may hold more water than desired.
Has better or as good results with lava (scoria) from a landscaping center—by the bucket or bag. Cheaper.
Bougainville Propagation
Bougainville propagate easily, hardwood cutting right into bonsai soil mix. Uses a fine grit or sand (pumice, lava, akadama). He does not use hormone. Don’t let it dry out. A few weeks later it will have roots.
He looks to collect even without roots.
Shown below the main trunk put into soils and with incremental removal of soil developed the exposed roots shown.