A retired French diplomatic agent in America, the gentleman gardener Monsieur Théodore Année of Passy, France, brought back from his travels the seeds of several Canna species, and in 1848 he crossed C. glauca with C. indica, so producing the first known and recorded Canna hybrid, C. x annaei André, now referred to as C. 'Annei'.
His continual interest in Cannas meant a steady supply of new cultivars being produced each year.
Walter's children Paul, Anna & Rudolf followed their father into the business, but in the 1950s they were forced to abandon the breeding of Cannas, as the high cost of German labour meant that they could no longer compete with Mediterranean countries, who also enjoyed a more favourable climate.
Wintzer worked in collaboration with Dr van Fleet, of the USDA, to produce many new Canna varieties.
There is recorded knowledge of 57 cultivars originating from this prolific nursery, until its destruction by the eruption of the Mount Vesuvius volcano in the early 1900s.
Over 100 new varieties are known to have been raised by the society during that period, as well as importing the latest favourites from Europe and later from the USA.
The obtaining of these cultivars C. ‘Francis Berthie’ and C. ‘Prince de Galles’ encouraged them to try for a purer colour.
In 1922, the cultivar C. ‘Prince Charmant’ with its bright carmine pink colour brought the desired tone to the collection.
This variety which is small, floriferous, with big spikes and carmine, lilac shaded flowers is still found at many horticulturists' and cities’ green spaces.
Although best known for her Crinum cultivars, over the years Mrs Marcelle Sheppard has also hybridized a number of winning Cannas.