Anyone grown this?

Hi all ,i was in amsterdam recently and bought some white widow seeds but they didnt germ for some reason (i got 1 sorry plant out of the whole pack of fem seeds) but i emailed the company i got them from and fair enough they said they would replace them and did i want the same seeds or different ,i just said whatever and so they sent me two packs of seeds but they are purple top not white widow .
Has anyone heard of purple top or grown it ? if so whats it like ?


cheers bifter