I think it vary's by strain had 3 clones one of rocklock one of vanilla kush one of tora bora extra clones i had that didnt fit into my SOG operation. So decided to run a simple nute burn test they were all 3 week old clones nicely rooted fed them 1250ppms each the torabora got burned up within 7 hours started to see great discoloration on the fan leaves following by crisp texture within 10 hours total time vanilla kush and rocklock were both very close 13 hours and bout 15 hours to show ghreat discoloration on fan leafs following my crisp texture.
that is the beauty of growing an autoflower. you have limited a limited timeframe to work with and any issues such as nute burn only further sets you back. i also burned by autos until i learned to reduce my nutes by 50% of what gh recommends.
that is the beauty of growing an autoflower. you have limited a limited timeframe to work with and any issues such as nute burn only further sets you back. i also burned by autos until i learned to reduce my nutes by 50% of what gh recommends.