The Hexapus's Garden

Ok don't count me as an expert on this, but this is how I figure grams per watt.

I divide the dry harvest weight, in grams, by whatever wattage my lights draw. Use the true wattage draw from the wall- none of that 'equivalent to' nonsense.

So let say you harvest 167 grams from your whole flowering area, and your flowering lights draw 207 watts from the wall.

167 divided by 207 = about 0.8 grams per watt. I would call that very good, and about as good a yield as I normally ever get actually.

I think (?) about .5 grams per watt is considered decent for a grower just starting out or a grow where you had some problems and things didn't go great but you still pulled it off. 1 gram per watt is kind of the upper limit/gold standard. If I was harvesting my whole flowering room at one time, and getting 1 g per watt that would mean I would be getting 1.2 kg from the two 600w lights.
There are always people to come along and claim they got 2 g per watt and stuff like that, but....who knows. It's the internet. Nobody can prove it.

This measurement process works best when you have the type of grow where you harvest the whole flowering area at one time, instead of a staggered perpetual harvest. However, since one screen takes up exactly 1/4 of the scrog space under one of my lights- I can still figure it out.
If you are harvesting only part of your flowering area, you can still calculate the grams/watt, as long as you can measure precisely what percentage of the total area that harvested part took up.

In reality it is an incomplete measurement, because it doesn't take into account some things. Most importantly the number of days it took to grow that harvest. So -one strain might take four months of flowering and another one might take two months.
Grams per watt divided by flowering days would be a better way to measure, but I haven't seen anyone doing that -so there's no public data for me to compare that figure against.

It also doesn't take into account a couple other little details like secondary power draws. Like if you are running HID lights you are usually going to need more ventilation, which uses more power, etc.

In the end it's most useful just to give you something to reference against for your own purposes- to see how much one strain is yielding compared to another strain, or how one flowering round compares to another one. In that case it would definitely make the most sense to factor in the number of flowering days as well.
I don't think I've ever grown a strain that was labelled as high yielding. Most sativas are considered fairly low yield.

Yield isn't something that concerns me a lot, but it's nice to have something to compare to and see how efficiently the grow is working out.
 
Good stuff weaseley,, i have certainly heard that measurement before, seems the real growers use that to compare with,, an interesting concept, indeed.. Mine might be relatively easy and accurate to measure, maybe, cuz my area is small and kinda uniform, but thinking hurts my head, so i avoid it, I think.

I think, ouch, that dutty uses this measurement, dutty too too

Weaseley, friend, I have a theoretical scenario for you to ponder, or just blurt out the first thing comes to mind, or ignore even,, you choose please

Supposen y'all had this Buddha auto plant near ripe, now this seed was from an assorted pack so I am not positive of the strain, however, buddhas website only shows five or so autos, so, I am near sure this is a white dwarf. now supposin the breeder states that this plant only takes sixty days from planting to mature, sixty five maye,, now, not being positive of the strain, Buddha states that their longest auto takes eighty five days, so, I could be wrong on the strain and maybe this plant should take eighty five days

So, I have this plant in flower and today is day one hundred and two, and i am lookin at this thing, up close and personal, and it just does not look near ready,, a messa clear trichomes and i gotta look real hard to find one amber

Agin, so,, do I,,

1) chop the bit cuz she be stubborn?

2) chop the thing cuz Buddha would never lie to me?

3)trust my instincts and your teachings and rely on my spider senses to achieve perfection?

4) pick a number from a hat and chop on that day?

5) wait for a full moon to chop er?

6) smoke a big fattie and chill out for a while?

7) ' insert correct response here'

Any help greatly appreciated friend,, cheers
 
I'd go with choice number three Nivek, and just act like I know what I'm doing when actually I'm confused as hell. If it doesn't work out at least I'll have learned something, maybe, for the next time.
 
nivek said:
Good stuff weaseley,, i have certainly heard that measurement before, seems the real growers use that to compare with,, an interesting concept, indeed.. Mine might be relatively easy and accurate to measure, maybe, cuz my area is small and kinda uniform, but thinking hurts my head, so i avoid it, I think.

I think, ouch, that dutty uses this measurement, dutty too too

Weaseley, friend, I have a theoretical scenario for you to ponder, or just blurt out the first thing comes to mind, or ignore even,, you choose please

Supposen y'all had this Buddha auto plant near ripe, now this seed was from an assorted pack so I am not positive of the strain, however, buddhas website only shows five or so autos, so, I am near sure this is a white dwarf. now supposin the breeder states that this plant only takes sixty days from planting to mature, sixty five maye,, now, not being positive of the strain, Buddha states that their longest auto takes eighty five days, so, I could be wrong on the strain and maybe this plant should take eighty five days

So, I have this plant in flower and today is day one hundred and two, and i am lookin at this thing, up close and personal, and it just does not look near ready,, a messa clear trichomes and i gotta look real hard to find one amber

Agin, so,, do I,,

1) chop the bit cuz she be stubborn?

2) chop the thing cuz Buddha would never lie to me?

3)trust my instincts and your teachings and rely on my spider senses to achieve perfection?

4) pick a number from a hat and chop on that day?

5) wait for a full moon to chop er?

6) smoke a big fattie and chill out for a while?

7) ' insert correct response here'

Any help greatly appreciated friend,, cheers
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I read a good article from a well-known MJ mag that Sativas should be left to fully ripen before harvest, because the final 2 to 3 weeks is when they really fill out. I went well over 100 days with the OGKs, even to the point they were foxtailing, and my beta smokers said is was good SH**!
 
I know that over on Sweetsue's Dark Devil Auto thread that some people are leaving their plants for well over the estimate (I hear seed companies estimate the time if using a 1000w HPS, and others are optimistic) with great results.

As for the total harvest vs the total wall watt measurement I pretty much do the same thing although I remember discussing the added measurement of time to the mix for a full picture, I never got around to doing it but I agree that it would be the best true measurement of yield. Talking of yield I'm probably slowly but surely getting towards that 0.5g a watt, but I'm still having the 1kg/watt worth of fun ;)

It will be the same again this time around, my flowering tent at the moment consists of 1 clone that will yield, 1 clone that was still rooting which may yield, 1 plant that was thrown almost instantly into 12/12 and will give me 1 bud and CrackerDino the plant grown with soil from my back garden mixed in compost...all look ragged as fook lol but that's 4kg of fun right there. I have around 20kg of fun in the veg tent :thumb:
 
I wouldn't be surprised to figure out that I am averaging way less than .5 g per watt. Actually, I would have to be. It's just the occasional plant that gets a good yield. At any given time at least a third of my flowering room is empty. Plus I'm growing weird things like the one-off hex plants and Thai Stick which takes four months to flower and ends up looking like a scrawny piece of crap. Whether or not it shows up in the photos, usually most if not all of my plants have feeding issues, ph problems, mold, thousands of seeds, etc... Overall there's no way that I'm averaging an efficient yield, but I really don't care about that. The real fun is in trying new things and leaving room to piss around in there. This is mainly a hobby grow I guess. Otherwise, I'd be more practical.
 
Ya i went and tried out the math and apparently my last harvest (which i thought was my best so far) turns out to be .1 sooo nothing like math to shoot down a guys hope lol
 
Well that led panel draws 207w from the wall and my harvest was 37g i did the math on a calculator and it said 0.1787439614 sooooo ya i suck lol
 
That doesn't mean you suck Lex. Lol. Look on the bright side. Think of how much more you'll be getting from that space in future without even having to expand. We all go through the same stuff. Practice makes perfect. I just keep banging my head against the same old wall, and before ya know it I'm getting somewhere. It's called forging a head.
 
:rofl:
 
Ya im not sweating it honestly though that was my best harvest so far and even that harvest had its bumps in the road. I don't grow monsters like most the people on this site so I don't think i should bother with the whole g/w. I was just joking about me sucking ive got alot better at growing each round i go and that's good enough progress for me lol.
 
lexort420 said:
Well that led panel draws 207w from the wall and my harvest was 37g i did the math on a calculator and it said 0.1787439614 sooooo ya i suck lol
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You grew, you harvested, you smoked, and had a great time with all of it. You beat out most of the class lexort. :hugs:
 
Thanks sweet sue! Ya im not gonna get caught up with those silly math things it still was the most amount of bud i harvested from one plant and i think that was pretty good considering everything lol
 
Weaselcracker said:
I wouldn't be surprised to figure out but I average way less than .5 g per watt. Actually, I would have to be. It's just the occasional plant that gets a good yield. At any given time at least a third of my flowering room is empty. Plus I'm growing weird things like the one-off hex plants and Thai Stick which takes four months to flower and ends up looking like a scrawny piece of crap. Whether or not it shows up in the photos, usually most if not all of my plants have feeding issues, ph problems, mold, thousands of seeds, etc... Overall there's no way that I'm averaging an efficient yield, but I really don't care about that. The real fun is in trying new things and leaving room to piss around in there. This is mainly a hobby grow I guess. Otherwise, I'd be more practical.
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Same here, WC! If it were not for the pure joy of growing them, and providing clean weed to my family, I wouldn't do it at all. There certainly is no profit in it, with all the issues and the horrendous electric bill! So, yes "Hobby" is the correct term for what we do!
 
If we were involved in competitive weed growing I'm sure we'd all be given the 'sucks' rating and go out of business immediately. Luckily we're not, and the thing we're trying to yield is satisfaction and a decent personal supply.
 
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