The smallest grapevine variety for perennial pot cultivation, for pots < 10 litres.
A compact, small, perennial variety, which can be trained in various cordon systems, for pots >10 litres.
This is rather an ornamental variety of vine for florists and mostly an annual plant. Bears large crop of fruit in the 2nd year, perennial thereafter with reservations, for pots > 10 litres, requires heavy fertilising after flowering.
Overwintering is possible in a cellar or similar storage room (or an unheated shed), as long as the pot is kept moist and the temperature remains well and truly below the critical 12ºC limit. Otherwise, bud burst will occur prematurely and the plant may die. In modern cellars, the temperature is usually not low enough, unless the cellar is unheated and permanently aerated.
If the vine is overwintered in a glasshouse or similar, it must be transferred outdoors early (around end of February). It is imperative to prevent premature bud burst under the glass with subsequent transfer into the open. Plants which have already burst bud must only be transferred to the open from April / May, because the young shoots are very susceptible to frost.