Belfast Botanic Gardens Tree Archive

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This series of short articles about trees in the Belfast Botanic Gardens is compiled by members of the Friends group and Gardens staff. We aim to build up to a comprehensive archive of trees in Belfast Botanic Gardens. Each article illustrates a tree growing in Belfast Botanic Gardens together with information from a range of sources. Where possible we will give the tree tag number - these are the small aluminium discs, usually fixed on the tree trunk, 2 to 3m above ground level.
Quercus robur 'Argenteomarginata'
Variegated English oak

Tag 94
54 deg 34.958N
5 deg 56.080W

This is a variegated form of the English oak. It is fairly rare and was first brought into cultivation in Germany in the 19th century. In common with other variegated trees the variegated form of English oak is likely to be rather slower growing than the species. Variegation can be caused by a genetic defect or sometimes by virus infection. As virus-caused variegation tends to produce a more blotchy effect, it is likely that the cause in this case in genetic. Variegations are not passed on in seed so trees such as this are propagated by cuttings or by grafting. There are two colours of variegation, yellowish green and almost white. The young tree in Belfast Botanic Gardens is close to the Ulster Museum steps among a number of mature oaks.

Quercus robur 'Argenteomarginata' in Belfast Botanic Gardens

leaf detail of Quercus robur 'Argenteomarginata'

Quercus robur 'Argenteomarginata' in Belfast Botanic Gardens Quercus robur 'Argenteomarginata'

Quercus robur 'Argenteomarginata'

Quercus robus 'Argenteomarginata'

Quercus robur 'Argenteomarginata' Quercus robur 'Argenteomarginata'

Photos taken in Belfast Botanic Gardens in 2012. Copyright: Friends of Belfast Botanic Gardens.

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