UCD Collection has Col de Dame white,DFIC 74
I had ,Col de Dame white and grei(grise),that got ripe here.
Col de Dame Grise (grey),is superior in everything,taste flavor,cold hardeness,and the willing to grow here.
Col de Dame White like other cultivars originating at UC D ,is very hard to grow or ripe here because of lack of adaptability to cold climate (OR), a notorious strain of Fig mosaic virus,worse than any other coming from Europe or Asia.
I also have Col de Dame Black,but it did not get ripe last year,tho is the same age as the Grise.
2011 was a cold rainy year here,so that is a serious excuse,that is why,I hope it will ripe this year and will surprise me ,by surpassing Col de Dame grise in flavor and taste.
But I doubt it will.
Col de Dame Grise is heavenly sweet and flavorful.