The DeliDahlias costs £4.40 for a 1.3 litre pot and the tubers and flowers are edible.
Of the six in the range three are also suitable for containers.
Lubera said: "We have tested many root vegetables and root crops in the last few years, but neither the sweet potatoesnor the Oca or other South American root crops had such an intense and different taste of its own. The Delidahlias found in this selection process, have a hint of asparagus, black salsify and nuts. Some varieties even have the flavour of parsley, celery and even fennel."
The red and white Delidahlia Hapet Hoamatland and the pink Buga Munchen are available.