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Carpinus betulus 'Monumentalis'
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Carpinus betulus 'Monumentalis'

Carpinus betulus 'Monumentalis'Hornbeam

A very slow-growing cultivar, it naturally forms an extremely compact, dense and regular columnar crown, like a living obelisk. Its restrained size makes it possible to introduce a precise architectural presence in small gardens and urban spaces where other columnar trees would reach an excessive volume.

  • Very dense, regular and naturally compact columnar crown
  • Slow growth that keeps its shape with little need for pruning
  • A size suited to small gardens, courtyards and constrained urban spaces
Plant typeTree
Mature height4 to 8 m
Mature width2 to 4 m
Growth rateSlow
Foliage persistenceMarcescent
Flowering seasonNo significant ornamental flowering, Spring
Autumn colourYellow or golden
Drought toleranceModerate
Landscape applicationsSpecimen tree, Narrow streets, Small gardens, Formal hedge, Informal hedge, Visual screen, Topiary or formal composition, Large pot or planter, Roof garden

About this cultivar

It has a narrow, strictly vertical silhouette, formed by numerous short branches densely arranged around the main axis. Its very slow growth allows it to keep a compact, well-defined shape for decades. In favourable conditions it can reach approximately 4 to 7 metres in height and only 1 to 2 metres in spread.
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It has a narrow, strictly vertical silhouette, formed by numerous short branches densely arranged around the main axis. Its very slow growth allows it to keep a compact, well-defined shape for decades. In favourable conditions it can reach approximately 4 to 7 metres in height and only 1 to 2 metres in spread.

The leaves are ovate, strongly veined and doubly serrate, forming a dense, uniform leaf surface. They are dark green during the growing season and turn yellow in autumn. After leaf fall, the fine, orderly branching keeps a very expressive architectural silhouette.

Discreet catkins appear in spring, followed by small brown fruits in hanging clusters. The main ornamental value of the cultivar lies, however, in the extraordinary density of its branching and the natural regularity of its crown, which produces an effect close to topiary without relying on frequent pruning.

It adapts to full sun, partial shade or shade and grows in different soil types, provided it has sufficient moisture and suitable conditions for establishment. It has good resistance to cold and wind and can be used in small gardens, courtyards, entrances, squares, urban tree pits, roof gardens and formal compositions.

Its particularly slow growth makes Diaplant’s mature specimens especially valuable, as they make it possible to introduce a dense, fully formed living column immediately. Alone, in pairs beside an entrance or repeated in avenue planting, ‘Monumentalis’ sets a precise vertical rhythm from the moment of planting, and an architectural presence that young plants would take many years to achieve.

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