Forsythia 'Northern Sun'
Sponsor
Kindly sponsored by
Monique Gudgeon, Sculpture by the Lakes
Credits
Owen Johnson (2022)
Recommended citation
Johnson, O. (2022), 'Forsythia 'Northern Sun'' from the website Trees and Shrubs Online (treesandshrubsonline.
Genus
Other taxa in genus
- Forsythia 'Arnold Dwarf'
- Forsythia europaea
- Forsythia 'Fontanna'
- Forsythia 'Ford Freeway'
- Forsythia giraldiana
- Forsythia 'Gold Splash'
- Forsythia 'Golden Times'
- Forsythia 'Happy Centennial'
- Forsythia 'Helios'
- Forsythia × intermedia
- Forsythia japonica
- Forsythia 'Kanárek'
- Forsythia × kobendzae
- Forsythia koreana
- Forsythia likiangensis
- Forsythia 'Little Renee'
- Forsythia 'Maluch'
- Forsythia × mandshurica
- Forsythia 'Meadowlark'
- Forsythia nakaii
- Forsythia 'New Hampshire Gold'
- Forsythia 'Northern Gold'
- Forsythia ovata
- Forsythia 'Paulina'
- Forsythia 'Princeton Gold'
- Forsythia 'Robusta'
- Forsythia saxatilis
- Forsythia 'Spring Beauty'
- Forsythia 'Spring Gold'
- Forsythia suspensa
- Forsythia 'Tremonia'
- Forsythia × variabilis
- Forsythia 'Verfors'
- Forsythia viridissima
- Forsythia 'Winterthur'
- Forsythia 'Yatgold'
USDA Hardiness Zone 4
RHS Hardiness Rating H7
‘Northern Sun’ was selected for its hardiness by Dr Harold Pellett and Laurie Malmquist at the University of Minnesota in 1983 from plants grown from seed collected in 1957 from a Forsythia ovata (growing with other forsythias) at the Central Experimental Farm in Ottawa, Canada (Dirr 2009). It can reach 3 m and reliably produces its clear yellow flowers in the Minnesota Landscape Arboretum (USDA zone 4b) (Dirr 2009); it is also cultivated in the harsh climate of the Betty Ford Alpine Garden, at 2700 m asl in Vail, Colorado (Royal Botanic Garden Edinburgh 2022).