Blake Wilkins wrote:

This spring I attempted my first air layer, which is on a Acer palmatum
"Shindeshojo." I was originally concerned that this cultivar would not
successfully air layer, but as it turned out, it did. By now it has
generated a number of roots along the cut and about three weeks ago sent out
a vigorous flush of new leaves.
untrue my firsts air layering io that cultivar
was perfect in 6 weeks and detached and stll alive
3 months alter
I did this very year


I need guidance on the next step:

When should I sever and repot?
as soon as you see roots piercing trough the moss
can wait one more week if you wish keep moist

While it has good new roots, should I wait
till the air layer medium is packed with new roots? Seasonal considerations
- is it okay in the fall to repot (we are in Houston, so Fall extends
through November), or is it best to repot only in spring.
wait one full year before doing whatever , cut
or wire and so on
leave theroots grow well

What is recommended for potting medium when I repot? For the air layer it
was straight shredded peat.
coarse medium 3-5 mm akaddma pozzolana sand
and some pine bark ( I did )

Pot size - this is a fairly large tree that I'm severing, probably about a
1.5" caliper. But I've had more than enough heartache from potting in
larger pots. Should I keep it in a half/gallon pot, or even smaller, until
a string root ball has developed?
use a size adapted to the scion size if too
big water stagnation might rot roots
Feeding recommendations immediately after repotting?

Thanks,
Blake in Houston
maybe you live in a too hot climate for
palmatum ...