Parrottia persica

I have limited experience, but the ones I have and the air layers I took seem to be slow growing and I'm not sure they double flush.
 
I know this is old but I wanted to add from my experience. I air layers my tree earlier this year. When I unwrapped the layer the root growth was explosive. At both nods of the cut bark!!!

Of all layers this tree had the most roots in the shortest time. Based on that I think it should be consistently easy to air layer and mist likely be easy to propagate from cuttings. These trees have a bark color that is unique. It changed dramatically from dry to moist. Now I’m curious if the roots will also get this unique grey color. Next project is going to be exposed root.

Air layering is generally straight forward but I think we would all benefit from public knowledge of which trees do best-worst with this technique. Maybe a running list where people could up or down vote trees they have the most success with. I’ve gotten black pines to grow roots but completely failed with Ilex Serrata.

Regardless, i’d like to know others experience with propagating Parrottia Persica.
 
An update on mine. I did not like the angle when I first got the tree two years ago. (Pic 1 in red pot)I repotted and turned it counterclockwise. (That left a large inappropriate branch on the right side of the tree. (Pic2) I air layered the branch with massive root growth including areas where the bark was intact. (Pic 3 is me holding the air layered potted branch about where it came off the tree)

I feel like the main tree now is close to having the primary development close to being done. (Pic 4) All the lower long branches (sacrifice) will be removed. The tree can heal massive cuts.

The second tree (air layer branch) will need two years of trunk development. (Pic 5) Then I’ll grow out primary branches.

I have been happy growing these trees. They seem indestructible, resistant, fast growing, well healing and are easier to propagate than Chinese elm. What I don’t like is that I’m having a hard time getting good ramification. Leaf size is a tad large for small trees. Also the trees only give me one strong flush in spring and a small second flush in fall. That is probably because of my schizophrenic climate in San Francisco. Our summers are cold and foggy June-August then we have sunny warm fall weather lasting through November. May of my deciduous trees literally think mid summer is fall and loose their leaves then re-bud in late fall. My crabapples, Japanese cherry trees and others often flower for the second time in late fall. I think those who have warm weather may see better leaf flushes including the ability to defoliate which I can not do(minimal second flush.)

These are for sure beginner friendly and in the hands of a professional grower these trees can probably get very twiggy.

There are a few cultivars. I think I have the ‘select’ which has the purple leaf margin in the spring.

I anticipate working with Parrotia persica for the long haul.

Best,

Mats H
 

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