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Products > Clematis 'Southern Cross'
 
Clematis 'Southern Cross' - Mountain Clematis

San Marcos Growers has permanently closed as a business. This is an archived page preserved for informational use.  
Image of Clematis 'Southern Cross'
 
Habit and Cultural Information
Category: Vine
Family: Ranunculaceae (Buttercups)
Flower Color: White
Bloomtime: Spring
Fragrant Flowers: Yes
Synonyms: [C. 'Garden Surprise']
Parentage: (Clematis aristata x C. gentianoides)
Height: 2-6 feet
Width: 3-5 feet
Exposure: Sun or Shade
Irrigation (H2O Info): Medium Water Needs
Winter Hardiness: 10-15° F
Clematis 'Southern Cross' (Mountain Clematis) - A semi-deciduous fast growing mounding vine to 2 to 5 feet tall with glossy green three-parted arrowhead-shaped leaflets and fragrant creamy 2 inch wide white, star-shaped blooms produced in abundance in early to mid-spring – early for a clematis.

Plant in full to part sun and irrigate regularly. Hardy to 10°F and useful down to UDA Zone 8. A great plant for a small trellis, as a potted specimen or spreading along the ground.

This cultivar, also known as 'Garden Surprise' was selected in Tasmania, Australia and registered in 1992 – it is considered to be a hybrid between Clematis gentianoides and Clematis aristata. It was marketed in the US by Ball Horticulture and we grew and sold it for only one year in 2012. 

The information displayed on this page about Clematis 'Southern Cross' is based on our research conducted about this plant from books in our nursery library as well as from information that is provided by reliable online resources. We also have included our own observations made about it as it grew in the nursery gardens and other gardens visited, as well how the crops of this plant performed in the containers when we had them in our nursery field. We also include comments received from others and welcome hearing from anyone who has information about this plant, particularly if it includes cultural information aiding others to better grow it.

 
We closed for regular business at the end of 2025 in order for the property to be developed for affordable housing.
Our gates remain closed but we will open them by appointment to interested parties as we liquidate remaining supplies and equipment.