Buddleja 'Silver Frost'

TSO logo

Sponsor

Kindly sponsored by
The John Spedan Lewis Foundation

Sponsor

Credits

Andrew Large (2021)

Recommended citation
Large, A.T. (2021), 'Buddleja 'Silver Frost'' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/buddleja/buddleja-silver-frost/). Accessed 2022-05-19.

Genus

Glossary

hybrid
Plant originating from the cross-fertilisation of genetically distinct individuals (e.g. two species or two subspecies).

Credits

Andrew Large (2021)

Recommended citation
Large, A.T. (2021), 'Buddleja 'Silver Frost'' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/buddleja/buddleja-silver-frost/). Accessed 2022-05-19.

‘Silver Frost’ is a hybrid cultivar from a back-crossing of ‘Lochinch’ (Buddleja fallowiana × B. davidii) with an unnamed cultivar of B. davidii. In all aspects it resembles B. davidii, except for the foliage which is more glaucous. (Pers. obs.).

USDA Hardiness Zone 6-9

RHS Hardiness Rating H5

This hybrid was raised by Prof. Michael Dirr and his team at the University of Georgia, USA, in the late 1990s. It is a fast growing shrub reaching just over 2 m in height and has excellent silvery to grey-green foliage. The inflorescences are short by modern standards, averaging only 20 cm in length. The flowers are white with a yellow eye.

Growing conditions are the same as for all B. davidii cultivars and hybrids: a rich and free draining soil which doesn’t become waterlogged in winter, in a position in full sun for at least a part of the day. ‘Silver Frost’ is currently only cultivated in North America and has not been introduced into Europe (Stuart 2006; Hawke 2015).