How long to veg for a lbs

G

Greenrman85

Member
Hi kinda new to all this but I was wondering how long to veg to get a lbs I have an indica dom strain that's supposed to put out 600-800 grams a m2. I'm thinking about a 3.5 ft x 3.5ft scrog and letting that one plant fill it (I'm guessing 3 months max "guessing") I have a 450 watt led that's the reason I'm growing one plant in a 5 gal smart pot and using compost tea instead of chemicals. is it possible to achieve this goal or close to it by the way money bush by heavyweight is the strain and I also have blue dream I'm thinking about the same setup.
 
majins

majins

Well-Known Member
What type of LED. Is that true from the wall Watts.
I run 457W from the wall with Cree and CitiLED cobs 3.5X4 ft
2 plants DWC, 6 weeks veg 8 weeks flower and get 15-17ounce.

Your going to have to be over 1 gram per W to make a LB which will be a real challenge if its not a quality LED setup.
With 1 plant your going to be looking at a 10-12 week veg
 
dandyrandy

dandyrandy

Well-Known Member
4 5 gal containers under ~700 wall watts on 16 3590's leds in 15 sq ft gives me bout a pound depending on strain with 5 weeks from seed. There, I said it, bout a pound...:blsmoke: Ymmv But seriously I don't try to grow for weight but potency. I really don't train much etc. The pound plus is buds only. No popcorn. I grow for myself and a buddy. He pays expenses and he can have what he wants. I toss weed.
 
G

Greenrman85

Member
majins said:
What type of LED. Is that true from the wall Watts.
I run 457W from the wall with Cree and CitiLED cobs 3.5X4 ft
2 plants DWC, 6 weeks veg 8 weeks flower and get 15-17ounce.

Your going to have to be over 1 gram per W to make a LB which will be a real challenge if its not a quality LED setup.
With 1 plant your going to be looking at a 10-12 week veg
Click to expand...
Vipar spectra 450watt led not sure about the wall wattage I think it pulls 225 out of the wall. So a 3 month veg is what I'm looking at. with a 10 gal pot three month veg 450watt prob 225 out the wall idk the light was a gift am I looking at at least a half lb I know it's hard to say but I'm just curious before I start and be disappointed. By the way nice setup I'm trying to produce those numbers.
 
majins

majins

Well-Known Member
Vipar spectra 450watt is only a true 220W LED.
Bluple LED tech is very old now days as well so 0.8-0.9 grams per watt is all id be expecting out of it. So 6-7 ounce is what id expect.
Doesnt really matter how long you veg for since the bigger the plant gets the smaller the nugs will end up being since they dont have enough light to get full coverage and penetration.

Id stick to 6-8 weeks veg with that ammount of light and youll get some decent nugs in the middle but some fluffy stuff going around the outsides.
 
G

Greenrman85

Member
dandyrandy said:
4 5 gal containers under ~700 wall watts on 16 3590's leds in 15 sq ft gives me bout a pound depending on strain with 5 weeks from seed. There, I said it, bout a pound...:blsmoke: Ymmv But seriously I don't try to grow for weight but potency. I really don't train much etc. The pound plus is buds only. No popcorn. I grow for myself and a buddy. He pays expenses and he can have what he wants. I toss weed.
Click to expand...
Would love to have that kind of space but I'm limited I also have a 600 watt mh/hps system was using too much energy so it's kinda collecting dust had it with my first grow would that be better than the 450 led
 
G

Greenrman85

Member
majins said:
Vipar spectra 450watt is only a true 220W LED.
Bluple LED tech is very old now days as well so 0.8-0.9 grams per watt is all id be expecting out of it. So 6-7 ounce is what id expect.
Doesnt really matter how long you veg for since the bigger the plant gets the smaller the nugs will end up being since they dont have enough light to get full coverage and penetration.

Id stick to 6-8 weeks veg with that ammount of light and youll get some decent nugs in the middle but some fluffy stuff going around the outsides.
Click to expand...
Cool that's good to know would I still need a 10 gal pot? what kind of light do you recommend?
 
majins

majins

Well-Known Member
Greenrman85 said:
Would love to have that kind of space but I'm limited I also have a 600 watt mh/hps system was using too much energy so it's kinda collecting dust had it with my first grow would that be better than the 450 led
Click to expand...
Looking at the light output
Vipar spectra 450watt is 5,000LM
600W HPS usually around 60,000LM

Or for comparison 100W of decent CREE LEDs be around 15,000LM (you just have to pay a lot for them tho Each 100W youll be paying around $120 for).
If heat isnt a issue for you the MH and HPS will be the closest to reaching your goal. If you have the money to spend tho proper LED is a good upgrade since youll be able to use half the power and have half the heat for about the same output.
 
Criminal_Med_Grower

Criminal_Med_Grower

Member
I don't know that light personally, but just took a look on amazon. Looks like 206 Watts at the plug and under 25 lumens per watt, for just over 5000 lumens. And nearly 50% of those lumens are in the Blue (veg) spectrum. Not efficient at all. For comparison, CFL's give off 50-70 lumens per watt and a good 600 watt HPS pushes around 90,000 lumens when new and about 220 PAR watts. That is 18 times the lumen output and will give you around 800PPFD in your 3.5x3.5. The vipar is a toy compared to a 600 watt HPS. Good luck with your endeavors.

Criminal
 
G

Greenrman85

Member
dandyrandy said:
4 5 gal containers under ~700 wall watts on 16 3590's leds in 15 sq ft gives me bout a pound depending on strain with 5 weeks from seed. There, I said it, bout a pound...:blsmoke: Ymmv But seriously I don't try to grow for weight but potency. I really don't train much etc. The pound plus is buds only. No popcorn. I grow for myself and a buddy. He pays expenses and he can have what he wants. I toss weed.
Click to expand...
Hey so if I use a 600w hps/mh set up and use 4 scog that's 2 sqft a piece which would give me a 4x4 so all 4 plants will get 600w a piece is it safe to say I can get close to or even meet th pound mark with a high yielding strain such as blue dream. idk if this is right 600w × .5gram ( just being safe in saying half a gram a watt) = 300 now is it safe to say that with 4 plants of the same genetics will produce 300 grams = 1200 grams over all if all are getting the full 600w in
 

Attachments

dandyrandy

dandyrandy

Well-Known Member
Greenrman85 said:
Hey so if I use a 600w hps/mh set up and use 4 scog that's 2 sqft a piece which would give me a 4x4 so all 4 plants will get 600w a piece is it safe to say I can get close to or even meet th pound mark with a high yielding strain such as blue dream. idk if this is right 600w × .5gram ( just being safe in saying half a gram a watt) = 300 now is it safe to say that with 4 plants of the same genetics will produce 300 grams = 1200 grams over all if all are getting the full 600w in
Click to expand...
I only use leds. I have gotten a 1000 grams with 4 indica leaning shaped hybrids. I usually grow sativa leaning. Not as much return on sativa. I really don't know what I am doing as far as growing. The Cannarado pucker tang last run was the big yielder. I got 5 plus off of it just buds and a gal zip of popcorn. Solid Tangerine dank. I went out to lunch today from work and the young lady at the drive through kept saying, wonderful, it just smells wonderful. I'm way over sixty. Clean cut old man. I thought she was going to ask me for a J. Kept saying it over and over...
 
G

Greenrman85

Member
dandyrandy said:
I only use leds. I have gotten a 1000 grams with 4 indica leaning shaped hybrids. I usually grow sativa leaning. Not as much return on sativa. I really don't know what I am doing as far as growing. The Cannarado pucker tang last run was the big yielder. I got 5 plus off of it just buds and a gal zip of popcorn. Solid Tangerine dank. I went out to lunch today from work and the young lady at the drive through kept saying, wonderful, it just smells wonderful. I'm way over sixty. Clean cut old man. I thought she was going to ask me for a J. Kept saying it over and over...
Click to expand...
Lol thanks for the info I will try that setup and maybe u should grow that strain more often seems like the ladies love the aroma. do u have any pics
 
dandyrandy

dandyrandy

Well-Known Member
Greenrman85 said:
Lol thanks for the info I will try that setup and maybe u should grow that strain more often seems like the ladies love the aroma. do u have any pics
Click to expand...
Some are lurking around here. Pucker tang search should show up a pic. It's in 3 1/2 gal jars and a 1 gal zip now.
 
Criminal_Med_Grower

Criminal_Med_Grower

Member
Greenrman85 said:
Hey so if I use a 600w hps/mh set up and use 4 scog that's 2 sqft a piece which would give me a 4x4 so all 4 plants will get 600w a piece is it safe to say I can get close to or even meet th pound mark with a high yielding strain such as blue dream. idk if this is right 600w × .5gram ( just being safe in saying half a gram a watt) = 300 now is it safe to say that with 4 plants of the same genetics will produce 300 grams = 1200 grams over all if all are getting the full 600w in
Click to expand...
Unfortunately, that's not how it works. LIght disperses as it leave the tube/reflector, so each plant will (in theoretical perfection) get 1/4 of the PAR being put out. In a 4x4 with a 600, your limiiting factor is the light. With 220 PAR watts in a 16 square foot space you are looking at a little over 600 PPFD. (Google PPFD if you're not familiar with the term. Basically a measurement of radiation useable by the plant over a given area. Cannabis can be pushed up to 1500PPFD before diminishing returns)

PPFD vs Photosynthesis.png

If you've decided on the 600, run a 3x3 (around 1100 PPFD). If you've decided on the 4x4 space, run a 1k HPS (around 1000PPFD). When you are deciding on a setup, wattages are irrelevant without taking into account the efficiency of the lighting source and the area to be lit. You could absolutely run a 600 in a 4x4 space if you've already started this way, but you will be trimming a lot of little (dare I say larfy) buds on your perimeter.

*i just looked at your original post, and the strain you are running claims 600-800 g/m2. I've never pulled those numbers, and I've grown for years. I've never grown the so-called super-high-yielders either. If I harvest 50 grams per square foot I'm extremely happy.

Criminal
 
B

Budget Buds

Well-Known Member
Criminal_Med_Grower said:
*i just looked at your original post, and the strain you are running claims 600-800 g/m2. I've never pulled those numbers, and I've grown for years. I've never grown the so-called super-high-yielders either. If I harvest 50 grams per square foot I'm extremely happy.

Criminal
Click to expand...
Critical + 2.0 will produce those numbers, I was doubtful , Then I tried it, Now I'm a believer :)
 
G

Greenrman85

Member
No
Criminal_Med_Grower said:
Unfortunately, that's not how it works. LIght disperses as it leave the tube/reflector, so each plant will (in theoretical perfection) get 1/4 of the PAR being put out. In a 4x4 with a 600, your limiiting factor is the light. With 220 PAR watts in a 16 square foot space you are looking at a little over 600 PPFD. (Google PPFD if you're not familiar with the term. Basically a measurement of radiation useable by the plant over a given area. Cannabis can be pushed up to 1500PPFD before diminishing returns)

View attachment 3843414

If you've decided on the 600, run a 3x3 (around 1100 PPFD). If you've decided on the 4x4 space, run a 1k HPS (around 1000PPFD). When you are deciding on a setup, wattages are irrelevant without taking into account the efficiency of the lighting source and the area to be lit. You could absolutely run a 600 in a 4x4 space if you've already started this way, but you will be trimming a lot of little (dare I say larfy) buds on your perimeter.

*i just looked at your original post, and the strain you are running claims 600-800 g/m2. I've never pulled those numbers, and I've grown for years. I've never grown the so-called super-high-yielders either. If I harvest 50 grams per square foot I'm extremely happy.

Criminal
Click to expand...
Trying to be repetitive but if I grow in a 8sqft space 2 plants scrog that will yield better or same amount as 4x4 with the same light?
 
You must log in or register to reply here.
Top