The seeds for sale in Alberta by tweed are feminized.
FYI While its only legal to grow from licit seeds there is no way for anyone to know where those seeds came from! Under bill C-45 anyone can give anyone 30 licit seeds that they got legally. So even if your growing purple kush from crop king seeds all you need to do is say you were given them by a legal source or show a sales slip from a legal store.
BTW there is no age limit on buying seeds or clones under bill C-45 so your 10 year old can buy his father clones or seeds for his birthday legally hint hint hint!