The International Rose Garden is a great favourite with national and international rose lovers alike.
View it at its best in October-November when the first flush of the season is in full bloom, and again in April for the autumn flush. Visit any time throughout summer and you will be treated to a beautiful experience too.
Top tip: Roses are at their most fragrant in the morning on a sunny day
Roses in the International Rose Garden are labeled to identify each specific rose and provide more information.
Large italic text indicates the registered ‘cultivar name’ of the rose in Australia. The code underneath the cultivar name has some capital letters and some lower case letters. The capital letter denotes the breeder’s name, while the lower case letters represent the code given to the cultivar.
Label information on the lower right hand side of the label indicates the rose group this particular rose belongs to. Text in the lower left of each label indicates the year and country the rose cultivar originates from.
The top right hand side of the label may have one, two or three stars. Stars represent the rose’s fragrance: the more stars, the stronger the fragrance.
Volunteers take on many roles in the International Rose Garden. Over the past decade, thousands of volunteer hours have been provided by members of the Rose Society of South Australia.
Removing spent flowers (dead-heading) and pruning of bushes is a mammoth task and the garden’s horticultural staff are grateful to volunteers for their help.
From its conception, the International Rose Garden has received significant support and advice from Australian rose experts on plant selection and care.
Several rose nurseries have donated thousands of rose plants. The garden has also greatly benefited from a high-quality mulch, together with the application of both pelletised and liquid fertiliser, generously provided by Neutrog, to ensure the roses receive the necessary nutrients to thrive.
Recently, with support from donors to the Adelaide Botanic Gardens Foundation, new rose varieties, border edging, plant identification labels, interpretive signage, irrigation and a fertigator (used to apply fertiliser) have been installed in the garden.
Kangaroo Island’s threatened flora is being given a life-line thanks to a new Seed Production Garden.In a bid to safeguard plants from extinction, the Threatened Flora Seed Production Garden will grow multiple populations of the island’s at-risk species, then collect their seed for banking and biodiversity recovery projects on the island.