Ask a Question forum: Autumn Blaze Maple and Japanese Maple

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California
Davidp25
Apr 6, 2018 12:17 PM CST
I have an Autumn Blaze Maple about 7feet tall and was wondering if I could plant 4 Japanese Maple Trees around it without killing either trees in the future
Name: Daisy I
Reno, Nv (Zone 6b)
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DaisyI
Apr 6, 2018 12:49 PM CST
Welcome!

It all depends upon how far apart you are planting your trees. The Acer rubrum 'Autumn Blaze' will grow to 40 ft wide and 50 ft tall. How big are the Japanese Maples? Most (except the dwarf grafted) will grow to 30 ft high and wide. So, to not crowd them, you would have to leave about 50 ft between trees.

If you are going for a more foresty look, you can plant them closer together. I planted an entire grove of Japanese Maples and Eastern Dogwoods with an understory of azaleas and ferns on a north slope in the California foothills. I planted the trees about 6 to 10 ft apart and ended up taking some out as they grew. As I had grown all the maples and dogwoods from seed, the only expense I had tied up with them was time. Smiling
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California
Davidp25
Apr 6, 2018 2:36 PM CST
I am looking for more of a forest look but also a shade for the Japanese maples from the evening sun. Wanted to plant them in a circle around the Autumn Maple or maybe in a raised stone flower bed circle so roots dont collide think that would be different
Name: Daisy I
Reno, Nv (Zone 6b)
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DaisyI
Apr 6, 2018 3:42 PM CST
Your current maple isn't going to shade the Japanese maples for quite a few years yet.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

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Name: Sue
Ontario, Canada (Zone 4a)
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sooby
Apr 7, 2018 4:48 AM CST
Also if the Japanese maples form a circle around the tree, some of them will always get full sun unless they are eventually right under the tree canopy. In that latter case there will also be competition for water and nutrients.

A raised bed will not keep the roots separate but if you're going to do that do it before the 'Autumn Blaze' sends its roots out to where the raised bed would be. Maples don't like the soil depth to change over top of their existing roots (which will extend out past the diameter of the tree's canopy).

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