When I got this tree from Will Feldman almost a year ago the blooms had already fallen so I let them bloom this year just to see what they looked like. In the next few years I will remove the flower buds before they bloom. The flowers tax the strength of the tree and I want full strength and growth at this stage. After the trunk has completely fused I will let it bloom. I decided not to take cuttings as I had originally planned to use to fill in gaps. I found on my Dawn Redwood test piece that when I topped the tree it slowed growth and fusion to a standstill, so I will let this tree grow freely and hope that the cuttings thicken and fuse. This tree is 5 years old now and needs to be repotted with new soil. It would probably grow faster in the ground but I have run out of yard space so I will put it in a grow tray. The first step was to remove all the blooms.
The next step was to rake the roots out. I was a little surprised how few roots there were. I figured after 5 years they would be pot bound. I used a soil mix of 2 parts Virginia Fines pine mulch, 1 part crushed lava and 1 part course sifted sand. I soaked the whole tray in a B1 solution for about 15 minutes before putting it back on the shelf to rest. In a few weeks I will begin fertilizing heavily.