Ask a Question forum: How big will these trees grow.

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berlin Germany
Jul 19, 2020 1:09 AM CST
I have just bought an apartment in Berlin Germany and these trees have been planted in the outside space. I have a ground floor north facing apartment and I'm worried that these trees will grow so high they will take away the light that I get from the bright sky. If they grow wide that wouldn't be a problem for the light. Should I be worried? The communal space is built on the carpark so the earth doesn't go too deep. maybe 1.5 to 2 meters.
Acer Ginnala (Feuerahorn), H, 3xv mDb STU 18.20cm
Crataegus monog, H, 3xv mDb STU 18-20cm
Sorbus auc. Edulis (Essbare Eberesche, ) H, 3xv mDb STU 18-20cm

Name: Amy
Capon Bridge, WV (Zone 6b)
Region: West Virginia Native Plants and Wildflowers Herbs
Jul 19, 2020 7:39 AM CST
Liquidambar styraciflua = 15–21 m
Acer ginnala = 3–10 m
Crataegus monogyna = 5–14 m
Sorbus aucuparia = 5-15 m

The problem tree will be the Liquidambar styraciflua because they can get up to 45 m if not cultivated properly. But the better question is why did they plant a non-native Liquidambar styraciflua in a public space? The seed pods haunted the bare feet of my childhood.
To plant a garden is to believe in tomorrow. - Audrey Hepburn
Lockhart, Texas (Zone 8b)
Hydroponics Greenhouse Region: Texas
Jul 19, 2020 8:12 AM CST
I suspect they're mostly going to grow tall. An arborist can do things with many trees to alter their natural profile, but there are limits without a lot of work. There's a multi-trunk cultivar of the Acer ginnala that would be easy to shape up as a large shrub, but since they bought other single-trunk tall trees, they probably didn't buy the multi-trunk of that one.

Still, there are specific expert techniques that can limit the height of a tree. They are much best done from the beginning. So it depends on if your landlord is prepared to follow up their tree investment with an ongoing contract to manage their height. Of course, keeping them small may not at all be part of their vision for the space.

Don't expect much help from the relatively shallow soil above the parking lot. For one thing, roots are cleaver about finding a way through. And a tree gets most of its food and water from inches below the surface, which is why they're so easily damaged by careless human activities at the surface.
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Deer Region: Florida Charter ATP Member Million Pollinator Garden Challenge I was one of the first 300 contributors to the plant database!
Garden Procrastinator Birds Butterflies Bee Lover Hummingbirder Container Gardener
Jul 19, 2020 8:17 AM CST
Here are our database entries for the trees you've listed:

American Sweetgum (Liquidambar styraciflua)
Amur Maple (Acer tataricum subsp. ginnala)
British Hawthorn (Crataegus monogyna)
Common Mountain Ash (Sorbus aucuparia)
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~ Playing in the dirt is my therapy ... and I'm in therapy a lot!

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