Is Mh Necessary For Veg?

[Indicat]

a few guys i knew out west, who imho were pros, always pulled of huge harvests of top notch medical quality herb - using HPS for the veg phase as well.

 

i know all of the reasons MH is better for veg, but do any of you use this HPS only method as well, or have compared, and have test results?

 

cheers

[kruztydj]

Screw MH,,,, go for the lumes. HPS all the way.............

[+RevThad]

The best scenario is using both all the way through veg and flower. That way the plants are getting the spectrum of light that they can use the most of. I personally haven't tried a one or other all the way through grow, but from my reading and conversations with folks that have done the experiments, if both types of lamps are available use them, if you only have one type available, you can grow all the way to harvest with it (just expect less than ideal results).

 

Hope that answers your question, if not please elaborate as there will be more folks popping in with information.

[Eggybuddy]

From what I have been told and have learned, it's ok to use HPS in the veg if its a Hortilux bulb. All I know is, I use HPS and MH both with good results,throughout veg and flowering.

[BDR]

Use this rule and you will be guaranteed success!! Veg = 80%MH & 20%HPS Or 100% CMH / Flower = 80% HPS & 20% MH or CMH(Ceramic Metal Halide) The added UVB will help enhance resin production in the final stages of bloom!! Peace, Love, and Big Buds

[Mr. Wilson]

The MH-HPS difference is blown out of proportion by the sellers of equipment, so they can make more cash.

 

"YES, you MUST have an HPS AND an MH bulb, and I have them right here for you, only $100 each!"

 

That being said. I do think the MH is slightly (slightly!) better for vegging....slightly.