I recently went into my local food market and saw these on sale (green ones LOL variety?) and purchased two. Wow what an interesting taste. "Quite yummy" Now my question. I did some research and found "Tomatillos are not self pollinating. Is this true for all of the varieties? I just received a seed catalog which had 3 varieties ( Cisineros, De Milpa and Purple) for sale and nothing was mentioned about them not being self-pollinating. I'd love to grow them but have very limited space. Any feedback on this would be greatly appreciated. Thanks!