Can I Vegetate with HPS?

hwy420

hwy420

Well-Known Member
Hey Everyone; I apologize for my newbiness, but I had a couple of questions.

I know that for vegetating, a Metal Halide on 16/8 light schedule is optimal.

I know that for flowering, a High Pressure Sodium bulb on 12/12 light schedule is optimal.

My questions are:
1.) Can I vegetate with a High Pressure Sodium bulb on a 16/8 light schedule?
2.) Can I flower with a Metal Halide bulb on a 12/12 light schedule?

I need to know whether or not I have to buy a 600W Metal Halide bulb to vegetate my clones for a week before putting them into 12/12 flowering. Thanks in advance!
 
B

Bob Smith

Well-Known Member
hwy420 said:
Hey Everyone; I apologize for my newbiness, but I had a couple of questions.

I know that for vegetating, a Metal Halide on 16/8 light schedule is optimal.

I know that for flowering, a High Pressure Sodium bulb on 12/12 light schedule is optimal.

My questions are:
1.) Can I vegetate with a High Pressure Sodium bulb on a 16/8 light schedule?
2.) Can I flower with a Metal Halide bulb on a 12/12 light schedule?

I need to know whether or not I have to buy a 600W Metal Halide bulb to vegetate my clones for a week before putting them into 12/12 flowering. Thanks in advance!
Click to expand...
1) Yes
2) Yes

Some people say that HPS for veg makes plants stretch; I don't agree, and use a 400HPS for vegging because I like the additional lumens it throws off (no stretching problems at all).

Also, not sure where you got the 16/8 schedule - many growers use 18/6 (I go 24/0), but 16/8 is not nearly as common.

Good luck.
 
c5rftw

c5rftw

Well-Known Member
of course you can... use more blue light in veg than red light but uses twice the red light during flowering than vegging
 
hwy420

hwy420

Well-Known Member
c5rftw said:
yah its 18/6 not 16/8
Click to expand...

Awesome guys; thanks so much for the clarification! So now I know that different stages are dependent on light schedule and not the light spectrum.

YAY!!! Sorry; I made a typo with the 16/8 lol. +REP To all of you!!!!
 
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