You can veg as long as you want (usually from 3-8 weeks) the more you veg the bigger the plant, it double sometimes triples its size in flower. Mh is better for vegging but it can be done under a hps, just kinda stong, the mh provide a red spectrum for veg and the hps is has the red used for flower. You can use it if you hood is switchable, some are just for hps and other just for mh. One more thing, ive heard of 24/0 and 18/6, but 22/2 were did you get that from? Cant wait to see pics!!

Good growing!!!
1puff2puff3puff Reviewed by 1puff2puff3puff on . How long do i veg from seed? Hello all im a new user that needs a bit of help. This is my second grow under lights (hopeing to do better this time round). Im using a 400w hps bulb and the plants are in clay balls with a watering system that waters for half an hour every two hours, ive got the light on for 22 hours and off for 2. ive started from seed and they are a week in (since sprouting up from cube) and they are looking good. im just wandering how long i should veg for since they are starting from seed? is 5 weeks Rating: 5