earlyest and fastest flowering strain you have seen

I'll second crit+ 7 weeks as well, blue hash was a couple days behind.

i know guys there are tons of fast finishing plant but will they start to flower outdoor with 15hours light thats the key. lots of good ideas. the strain i do pick i will post up here and pm the person who gets the seeds

Over the years, has the potency of auto-flowering strains not yet improved dramatically? I can see there are now commercially available White Widow Autos, same with AK-47 and Northern Lights. Are they any good too?

For Guerilla grows and fast completion auto-flowering is probably the way to go man. Wherever you get your seeds from they have an explanation of each seed including yield, THC, and finishing time. www.pickandmixseeds.co.uk has almost 3000 different strains of seeds and you can buy singles so you can experiment with all different kind and fins out for yourself whats the best for your needs. For autos I think they have like over 400 different strains. Good luck to you man. Hope this helped.