first time grower, 40 day old plants 400 hps when should i start flowering?

[spex]

my plants are 40 days old planted 3/21
how long tilll i switch to 12/12? heres some pics

 

[FCSoldier]

well, if they were planted 3/21 they would be about 34 days old... most plants mature around 8 weeks but depending on your grow space and how long your willing to wait should be the main factors.

your plant should double to triple in size during flower.

so if space isn't a problem I would wait until the plants are mature(alternating nodes) before switching to flower

https://www.rollitup.org/newbie-central/186038-first-grow-any-input-would.html#post2401977

 

[frmrboi]

sure small for almost 5 weeks, you could/should let them go a couple of weeks more.

 

[spex]

sure small for almost 5 weeks, you could/should let them go a couple of weeks more.

im really high right now but im gonna try my best to answer this

since i repotted them and started giving them nutes they have been growing about a inch a day at the rate there going there gonna get huge should i start flowering them since im kinda limited with space

EDITr should i try lst?

 

[spex]

i know its small but how much will a 3ft plant yeild?

 

[frmrboi]

should i start flowering them since im kinda limited with space

Yes

should i try lst?

No ! drugs are dangerous

i know its small but how much will a 3ft plant yeild?

guesstimate: 1 1/2 ounces.

 

[smokinrav]

Do you see alternating nodes on your plants yet?

LST is perfect to use with a 400 HPS.

 

[saintmetalhead]

pree flowers? ifr so do it if not keep veg

 

[spex]

Do you see alternating nodes on your plants yet?

LST is perfect to use with a 400 HPS.

yea there a few nodes tall but the parts with the leafs on them don't have any nodes yet

 

[spex]

pree flowers? ifr so do it if not keep veg

no there isnt any pre flowers

 

[bigwity]

they are the same size as mine bro im gonna wait check out my thread for pics under half my grow in soil