As soon as they are big enough to start bending do it. The sooner the better. They will get wider real fast.
http://forum.grasscity.com/absolute...olute-beginners-compendium-helpful-links.html everyone should read this http://forum.grasscity.com/plant-training/924509-closer-look-lst-picture-guide.html
I did lst to one that just came out of soil last night and it grew half an inch in 12 hours im just playing around with bagseed till one grows so dosnt really matter if they die im experimenting bag seeds come all the time lol
Thanks because i started my week old and then unstaked it after reading this but kept my 2 day old down just to see what it dose