Horticulture

Repotting Demo Of A Japanese Maple, A. palmatum 'Murasaki kiyo-hime' With Reiner Goebel

by Dierk Neugebauer







As the tree looked last fall, 2003.
Unpruned, 2004
Pruned, 2004.
Three warm days after repotting.
Typical spring foliage of this cultivar, March 11, 2004.
























A beautiful Japanese maple owned by John Biel was repotted at the TBS March meeting.
Reiner is giving us a little history about the tree while John is preparing the new pot in the background.
John & Reiner are examining the base of the tree and planning their tree removal-from-pot strategy.
The tree is firmly in the grasp of the pot with its inturned upper lip - the tool of choice is a sickle-like weapon that is used to cut both soil and roots around the inside perimeter of the pot.
Finally the tree is released from the pot in which it had spent the last two years - a tremendous number of roots circled the pot, indicating that it was high time to repot the tree.
A close-up view of the 5 inch diameter nebari.
Reiner starts to remove the winding roots. Note how nicely the branches are layered, as well as overall ramification.
We get a good idea here of the health of the roots.
Reiner begins to rake out the roots, starting at the base of the tree and pulling his rake outwards.
He goes right around the tree - any roots that grow at angles are automatically broken off - the remaining roots radiate like the spokes of a wheel.
John is seen cutting some of the roots that protrude above the soil.
Here John is trimming the size of the overall rootball.
John checks the health of the roots under the base of the trunk.
The new pot is readied with a sprinkling of 1/4" "haydite", an epanded shale product - this gravel keeps the soil from plugging the drainage holes.
Reiner starts to add soil to the pot.
The significantly smaller rootball is in evidence here as Reiner places the tree into its new pot. There is lots of new room for the roots to expand.
Reiner begins to tie the tree into the pot so that a strong wind cannot dislodge it from its pot.
Plastic screening is used to protect the surface roots from wire cuts.
More dry soil is now added to the pot.
A chopstick is used to ensure that the soil settles in around all of the roots, thereby avoiding large, damaging air pockets under the tree.
Carefully Reiner settles the soil around the roots.
John admires Reiner's handiwork from a distance.
A few final touches, and then, ...
the tree is ready for a good soaking in a tub of water.