Sorry it took so long to reply. The columnar trees are hornbeams, a deciduous tree here in the Midwest. They keep that slim, upright form naturally, no pruning needed. They perform very well in most landscape situations. For more information, search by the species name Carpinus betulus.
Architectural Gardens, Inc
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皆さんはどの位の大きさのクリスマスツリーを飾っていますか?
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珪藻土かべぬり体験会開催します♪
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ミツロウキャンドル作り体験♪ inむっくの木
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