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Columnar trees
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GEORGE MAGRO
Hello George
To meet all these requirements, consider a columnar sweetgum such as Liquidambar styraciflua 'Slender Silhouette’
https://plants.ces.ncsu.edu/plants/liquidambar-styraciflua-slender-silhouette/
Also, most white and English oaks are salt tolerant, and there are several columnar or fastigiate oaks. Some examples:
Quercus robur 'Fastigiata’
https://plants.ces.ncsu.edu/plants/quercus-robur-fastigiata/
Quercus x warei ‘Regal Prince’ or Quercus macrocarpa ‘Urban Pinnacle’( scroll down to the oaks section)
https://www.ag.ndsu.edu/ndfs/documents/rec-trees-for-nd-2022-final.pdf
Finally, there are some ginkgo columnar forms. See ‘Princeton Sentry’ and ‘Sky Tower’ here- https://trees.umn.edu/ginkgo-ginkgo-biloba
Expert with status of Closed
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Sent: Wednesday, March 27, 2024 2:04:00 PM
To: GEORGE MAGRO <gmagro@comcast.net>
Subject: Thank you for your Ask Extension question (#0132569)
Dear GEORGE,
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YOUR QUESTION #0132569:
Columnar trees
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The oak, birch and the gingko are salt tolerant. The plum is not well researched, a couple references listed it as tolerant of salt spray, other references did not have any data. The red maple is not salt tolerant.
Here is one reference for you, to guide you on which species in general have tolerance.
https://extension.umaine.edu/gardening/manual/tolerance-trees-shrubs-salts-soil/
Remember the sun amount, water amounts, soil pH and soil texture( clay, loam or sandy) are factors for successful culture, as well.
Have a soil test done if you haven’t in the last three years.
Also, here is a good guide to planting and care—
https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5368392.pdf
regards,
Laura
Expert with status of Closed
