japanese maple & sun

[jimlau]

i'm in zone 5/6. do green and blood good maples already need shade from direct sun when it's 75-80 degrees out?

thanks.

 

[jk_lewis]

Probably not at those temps. Any hotter for any length of time and maybe.

 

[Dav4]

i'm in zone 5/6. do green and blood good maples already need shade from direct sun when it's 75-80 degrees out?

thanks.

My palmatums receive direct mid day sun for 3-4 hours down here in N GA and love it, though by August, the leaves are a bit ratty. Protection from the worst of the mid day sun isn't a bad idea, but personally, I think wind is a bigger issue.

 

[Paradox]

70-80 should be fine

Im in zone 7B and my maples get sunburned leaves in the summer if I leave them in full sun and it gets above 90 with a heat index.

BTW the zone number is more an indicator of frost and cold hardiness than it is heat tolerance

 

[VAFisher]

I'm new to Japanese Maples. Does this look like leaf burn or something else? It got over 90 degrees here in VA the last 2 days. My maples got a lot of sun yesterday but I moved them into a shadier spot today. They were looking pretty rough when I got home from work today.

 

[drew33998]

Looks like leaf burn to me. They will be fine if you put them in a shadier spot protected from the sun from noon-on. At least that seems to work for me. I did have mine in direct sun until about noon, and due to the 90 degree heat we have had every day for the past week I have notice a little bit of leaf burn spots. I will keep them there until June (unless they start burning progressively worse) at which time I will place them under an old live oak tree for the rest of the summer.

 

[Kodama16]

You keeping them wet? Almost looks like overwater burn/wilt.
But there so fine between the two it hard to tell.