Acer palmatum, sun burn ?

[maroun.c]

Hello,
Are these leaves on my acer palmatum sun burned? Tree was reported around 3 weeks back, duds opened up. It gets a few hours of sun every day but last few days were rather cool at around 15-20 degrees celsius. Should I shade it as these are new leaves? Some leaves aren't affected and a trident maple next to it is completely normal.

 

[TN_Jim]

When is the last time you had a frost? Very new leaves can get fried by a good frost.

 

[0soyoung]

What I see in the first pic is like what happens when there are no roots. A so-called hardwood cutting ( = a cutting taken after leaf drop in the fall and before bud break in the spring) will do this --> buds break, leaves are expressed, but never harden; they simply droop and slowly dry. If this is just one branch, it was damaged in some way (xylem clogged) and will not recover, so prune it (or the part of the branch with leaves like this) away.

What I call 'sunburn' of maple leaves is when part of the leaf turns dry brown. With wind and dry air it will likely be the leaf margins. If it is strictly too much sun it will be the area of the leaves most exposed to sunlight.

 

[maroun.c]

When is the last time you had a frost? Very new leaves can get fried by a good frost.

We never have frost here. Maybe rarely 1-2 days every 2-3 years.winter is typically around 10 degrees celsius and drops 5-6 degrees typically in cold days.

 

[maroun.c]

What I see in the first pic is like what happens when there are no roots. A so-called hardwood cutting ( = a cutting taken after leaf drop in the fall and before bud break in the spring) will do this --> buds break, leaves are expressed, but never harden; they simply droop and slowly dry. If this is just one branch, it was damaged in some way (xylem clogged) and will not recover, so prune it (or the part of the branch with leaves like this) away.

What I call 'sunburn' of maple leaves is when part of the leaf turns dry brown. With wind and dry air it will likely be the leaf margins. If it is strictly too much sun it will be the area of the leaves most exposed to sunlight.

Basically couple branches showing this will remove as suggested. Thanks for the explanation.

 

[Mike Corazzi]

Our California scorching siroccos have limited me to ONE Japanese maple. It was free so I didn't care.
But it's alive.
Not so with any I have paid money for.

 

[maroun.c]

Our California scorching siroccos have limited me to ONE Japanese maple. It was free so I didn't care.
But it's alive.
Not so with any I have paid money for.

Not really sure I'm getting ur post.

 

[Mike Corazzi]

Not really sure I'm getting ur post.

The heat and wind destroys every Palmatum I try.

 

[maroun.c]

The heat and wind destroys every Palmatum I try.

Ouch that's nasty.