Kens GrandDaddy Purp seeds!

n00bster said:

Smoke wise, I love GDP. Hands down my favorite bud right now.

However, the "squirreliness" (don't try to look it up, its not a real word ) of this strain concerns me. I had 10/10 pop, with 5 being females (no complaints here). The problem arose when all 10 of them started flowering under 24 hour light. Typically I would blame something like this on myself, but it just doesn't make sense. I started 8 other strains (roughly 20 other plants) at exactly the same time under exactly the same conditions, and I didn't have a single one of them start autoflowering.

Now maybe I'm a retard and overlooked something, but it just doesn't make sense to me. I don't want to tarnish the GDP name without reasonable cause, though I'm rather pissed off about this. I'm a cloner, so I need moms. Out of the 5 females I had, I've lost 3 to this magical flowering process. They simply refused to veg. The only reason I still have 2 is because they decided to have singular "off-shoots" that kept vegging without any sign of flowering (yes, the plants are vegging and flowering at the same time). I'll post pics if it would help describe the nature of the situation.

Comments and suggestions are more than welcome at this point. I'm at a loss for what to do at the moment. If I had enough viable moms right now, I'd probably run nothing but GDP.

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Are you sure they are not just expressing their sexual maturity? which would be completely normal. There is absolutely nothing else on any forum about Ken's gdp autoflowering. You do know that flowers do appear at the meristem internodes when the plant reaches sexual maturity, and that the stronger the plant is the more pronounced the pre-flowers will be.

n00bster said:

Smoke wise, I love GDP. Hands down my favorite bud right now.

However, the "squirreliness" (don't try to look it up, its not a real word ) of this strain concerns me. I had 10/10 pop, with 5 being females (no complaints here). The problem arose when all 10 of them started flowering under 24 hour light. Typically I would blame something like this on myself, but it just doesn't make sense. I started 8 other strains (roughly 20 other plants) at exactly the same time under exactly the same conditions, and I didn't have a single one of them start autoflowering.

Now maybe I'm a retard and overlooked something, but it just doesn't make sense to me. I don't want to tarnish the GDP name without reasonable cause, though I'm rather pissed off about this. I'm a cloner, so I need moms. Out of the 5 females I had, I've lost 3 to this magical flowering process. They simply refused to veg. The only reason I still have 2 is because they decided to have singular "off-shoots" that kept vegging without any sign of flowering (yes, the plants are vegging and flowering at the same time). I'll post pics if it would help describe the nature of the situation.

Comments and suggestions are more than welcome at this point. I'm at a loss for what to do at the moment. If I had enough viable moms right now, I'd probably run nothing but GDP.

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i received an email from someone asking me the same thing. Not sure if it was your buddy, cause he was referring to his friend it happened too. Basically, I feel that what you're describing could be caused from stress. NOT something you are purposely doing. I mean light stress. Some plants seem to not only thrive, but really NEED their dark cycle. Why not run 18/6? I recently changed myself and I'm loving it. I did the 24hr light thing, and my Tahoe OG regular seeds started to auto flower. I chopped em. I feel dark cycles are a must, even though LOTS of growers will argue that, and lots of plants won't auto flower either. One more thing, I had plants do this that were root bound and in dire need of an up potting. A clone from kens gdp seeds started the auto flower under 24 hr on me as we'll, but it was super stressed, neglected, and just a turd of a plant.

echlectica said:

Are you sure they are not just expressing their sexual maturity? which would be completely normal. There is absolutely nothing else on any forum about Ken's gdp autoflowering. You do know that flowers do appear at the meristem internodes when the plant reaches sexual maturity, and that the stronger the plant is the more pronounced the pre-flowers will be.

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Great info! I think I know what he's describing though, as my response above shows....
i really feel like this may just be a strain that is sensitive to 24hr cycles. I dunno.

24hr light with no breaks will not cause a plant to autoflower, if anything I am 99% certain almost without a doubt that those are rootbound!

northwest.GDP.rep said:

Great info! I think I know what he's describing though, as my response above shows....
i really feel like this may just be a strain that is sensitive to 24hr cycles. I dunno.

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I have never heard of such a thing. I'de like to see some pics of the plants in question but it just sounds like a Noob mistake(no offense). But I would like to know before I go much further.

echlectica said:

I have never heard of such a thing. I'de like to see some pics of the plants in question but it just sounds like a Noob mistake(no offense). But I would like to know before I go much further.

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24 Hour lighting has NOTHING to do with it autoflowering, GDP has no AF traits to it. Obviously dude is doing something wrong.

n00bster said:

Smoke wise, I love GDP. Hands down my favorite bud right now.

However, the "squirreliness" (don't try to look it up, its not a real word ) of this strain concerns me. I had 10/10 pop, with 5 being females (no complaints here). The problem arose when all 10 of them started flowering under 24 hour light. Typically I would blame something like this on myself, but it just doesn't make sense. I started 8 other strains (roughly 20 other plants) at exactly the same time under exactly the same conditions, and I didn't have a single one of them start autoflowering.




Now maybe I'm a retard and overlooked something, but it just doesn't make sense to me. I don't want to tarnish the GDP name without reasonable cause, though I'm rather pissed off about this. I'm a cloner, so I need moms. Out of the 5 females I had, I've lost 3 to this magical flowering process. They simply refused to veg. The only reason I still have 2 is because they decided to have singular "off-shoots" that kept vegging without any sign of flowering (yes, the plants are vegging and flowering at the same time). I'll post pics if it would help describe the nature of the situation.

Comments and suggestions are more than welcome at this point. I'm at a loss for what to do at the moment. If I had enough viable moms right now, I'd probably run nothing but GDP.

Click to expand...

i have had the same problem

I took some pictures, all I have is a camera phone so please excuse the blurriness. It should be noted that I have 4 GDP left. I had to chop down the 5 males before they started pollinating my veg room. I chopped most of the bud off the 5 females in an attempt to get them to re-veg. One of the moms didn't survive this. I don't believe the 2 depicted in the last 3 pictures will make it either, they've simply stopped growing. The first 2 pics are of my best one at the moment... hopefully you can see the one "shoot" that didn't flower and kept vegging up. The 3rd and 4th pics are of my other girl I'm trying to nurse, which behaved the same way as the first.

echlectica said:

Are you sure they are not just expressing their sexual maturity? which would be completely normal. There is absolutely nothing else on any forum about Ken's gdp autoflowering. You do know that flowers do appear at the meristem internodes when the plant reaches sexual maturity, and that the stronger the plant is the more pronounced the pre-flowers will be.

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These are well beyond preflower. The females fully budded out and the males were covered in nuts shortly after they started this. Hopefully the pics are clear enough to illustrate this.

northwest.GDP.rep said:

i received an email from someone asking me the same thing. Not sure if it was your buddy, cause he was referring to his friend it happened too. Basically, I feel that what you're describing could be caused from stress. NOT something you are purposely doing. I mean light stress. Some plants seem to not only thrive, but really NEED their dark cycle. Why not run 18/6? I recently changed myself and I'm loving it. I did the 24hr light thing, and my Tahoe OG regular seeds started to auto flower. I chopped em. I feel dark cycles are a must, even though LOTS of growers will argue that, and lots of plants won't auto flower either. One more thing, I had plants do this that were root bound and in dire need of an up potting. A clone from kens gdp seeds started the auto flower under 24 hr on me as we'll, but it was super stressed, neglected, and just a turd of a plant.

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I don't disagree with you, it could certainly be stress. However, the fact that I started 8 other various strains at the same time under the same circumstances makes me believe it's something else. Also, a couple of the females have been flowering and vegging at the same time. I've never seen craziness like this before, but I don't pretend to be a marijuana expert.

smang said:

24hr light with no breaks will not cause a plant to autoflower, if anything I am 99% certain almost without a doubt that those are rootbound!

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I've never had an issue with rootbound plants... not saying it can't happen but I flower everything in 4 x 4 x 2.5" rockwool cubes with no problem. I believe they started flowering way too early in their lives to be affected by rootbound stress. Also, I have several other moms I started at the same time in the same size bags that are now 2 - 3 times bigger and still not showing any form of stress.

I'm starting to think these genetics are quite finicky, but I can't be sure. Are there any special tricks I need to know about this strain to keep it from doing this? I haven't had issues with anything else...

Marijuana for Athletes said:

i have had the same problem

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Thanks for replying, Marijuana. In an attempt to figure out what the hell is going on, could you tell me if you were using 24 hour veg light as well?

• I've never had an issue with rootbound plants... not saying it can't happen but I flower everything in 4 x 4 x 2.5" rockwool cubes with no problem. I believe they started flowering way too early in their lives to be affected by rootbound stress.​
  
  

Well if those plants are in soil and they have been in the same bags for they whole life they are root bound. And flowering in a rockwool cube and leaving a plant in a small growbag for 8 month are two different things like apples and oranges. They look root bound as hell to me. And are you absolutely certain they have not had any interruptions in light? Does the power go out? Did the power go out for an extended period of time? Maybe while you were even home during the day? What you have here is not a genetic problem it is stress probably several types of stress. I've seen stuff like what you have there happen from light stress. This is also a cold weather high altitude strain so possible temperature issues? You'll have to really scrutinize your system.

I may be bitching cuz I've gotten all males so far but I will say these are some super stout plant male or not. I have cracked the other five seeds they I have placed them in RW cubes to sprout and two have sprouted, one is almost there and the other two are lagging but they were kinda misshapen and small so I dunno if they sprout but they did crack and shoot a small radical. I will move them into my veg room when they get the first set of serrated cotyledons and put them under 400 watt MH raised to 4 feet above seedlings. I use ebb and flood in geolite. Its about 78 deg in the seedling incubator but I have dropped the temp in my veg room to 68 degrees hopefully that will produce a female GDP also if I notice a higher ratio of females from my other strains that I've started I will have learned something. Since it is a cold weather strain maybe that will help. It really would be nice to get a girl.

echlectica said:

• I've never had an issue with rootbound plants... not saying it can't happen but I flower everything in 4 x 4 x 2.5" rockwool cubes with no problem. I believe they started flowering way too early in their lives to be affected by rootbound stress.​
  
  

Well if those plants are in soil and they have been in the same bags for they whole life they are root bound. And flowering in a rockwool cube and leaving a plant in a small growbag for 8 month are two different things like apples and oranges. They look root bound as hell to me. And are you absolutely certain they have not had any interruptions in light? Does the power go out? Did the power go out for an extended period of time? Maybe while you were even home during the day? What you have here is not a genetic problem it is stress probably several types of stress. I've seen stuff like what you have there happen from light stress. This is also a cold weather high altitude strain so possible temperature issues? You'll have to really scrutinize your system.

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All 10 of my GDP began flowering 2 - 3 months after I popped them. In my mind there's no chance they were anywhere close to rootbound enough to cause this. I have other strains that are still in the small bags and are growing just fine. If this is stress related, then it reflects purely on the genetics. As far as lighting goes, it could be possible that the power has gone out briefly before, but if it did, it didn't affect any other plant other than all 10 of the GDP. There was a period of excess heat earlier this summer, but I don't know if it corresponds with the timing of the flowering. I've read in this thread that GDP is a heat tolerant strain.

What size are those bags? because for those plants to not be root bound those would have to be ten gallon bags. My guess from the pics is they are 2 or 3 gallon bags. And did your power go out this summer? for long periods maybe? You didn't address that question... It may tolerate some heat but nearly pure indica that can survive extreme cold probably doesn't fair well in temps over 90F

ive had a plant in a 2 gallon smart pot for 2 years before transfer . .its huge and no stress, if thats the kind of bag your talking about

if in plastic definitely root bound if in anything under 3-5 gallons . .not all phenos/plants grow the same or even in same or similar environments

He has em in those plastic growbags and it looks like soil, there is a difference between soil and soilless which if I'm not mistaken coco is used in the Smart pots. When I said that its not genetic I meant that what he has happening is not from the presence of Ruderalis in the strains genome. The strain may be prone to doing this under extreme condition but I doubt that it happens under anything less than extremely stress.

n00bster said:

I took some pictures, all I have is a camera phone so please excuse the blurriness. It should be noted that I have 4 GDP left. I had to chop down the 5 males before they started pollinating my veg room. I chopped most of the bud off the 5 females in an attempt to get them to re-veg. One of the moms didn't survive this. I don't believe the 2 depicted in the last 3 pictures will make it either, they've simply stopped growing. The first 2 pics are of my best one at the moment... hopefully you can see the one "shoot" that didn't flower and kept vegging up. The 3rd and 4th pics are of my other girl I'm trying to nurse, which behaved the same way as the first.

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I'm starting to think these genetics are quite finicky, but I can't be sure. Are there any special tricks I need to know about this strain to keep it from doing this? I haven't had issues with anything else...

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Honestly, not trying to be rude, but there have been WAYYY too many awesome grows with the GDP, and people that know what they are doing do not have issues like this. For one, those look like they were flowered out, you cut the tops and have re-vegged plants going... Those are beyond autoflowering... I don't even know what to say, other than sorry man, I feel like you are the problem in this case.

echlectica said:

I may be bitching cuz I've gotten all males so far but I will say these are some super stout plant male or not. I have cracked the other five seeds they I have placed them in RW cubes to sprout and two have sprouted, one is almost there and the other two are lagging but they were kinda misshapen and small so I dunno if they sprout but they did crack and shoot a small radical. I will move them into my veg room when they get the first set of serrated cotyledons and put them under 400 watt MH raised to 4 feet above seedlings. I use ebb and flood in geolite. Its about 78 deg in the seedling incubator but I have dropped the temp in my veg room to 68 degrees hopefully that will produce a female GDP also if I notice a higher ratio of females from my other strains that I've started I will have learned something. Since it is a cold weather strain maybe that will help. It really would be nice to get a girl.

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Thank you!!! I appreciate that. Thanks for starting those other seeds. Lets keep our fingers crossed for 5 fems!

• For one, those look like they were flowered out, you cut the tops and have re-vegged plants going...​
  
  
  
  

I kinda thought the same thing but that seemed like such a shitty thing to try and pull I didn't say it...but there its been said.

Great minds think alike...
to me, that's the obvious conclusion, but it wouldn't be nice to assume he's trying to bash us for no reason.
Especially picture 5...

just found this. anyone have any thoughts on this topic:



Grandaddy Purple also know as GDP was developed in northern California around the year 2000. GDP’s lineage includes; Mendo Purps, an unnamed Afghani, and Skunk #1. The GDP family includes several variants that are likely different phenotypes of this union. As siblings, or perhaps cousins; GDP, Grape Ape, and Purple Erkel have much in common but also exhibit unique distinctions. We had an opportunity to speak with Bret Bogue, owner of Apothecary Seeds. He informed us that his Grape Ape phenotypes are the origin of this purple phenomenon. Bret went on to explain that the name, Grandaddy Purple, was coined by Ken Estes to describe a specific pheno found throughout Brets seed lot. We asked Bret for a quote and he gave us this;
We attempted to contact Ken Estes to hear his side of the GDP story, but have been unable to reach him. It appears he has declined our interview.
http://www.marijuanagrowershq.com/grandaddy-purple-gdp/

I can only say this. A while back (2007) I was given 150 seeds as a gift by the person who, at the time, was the longest surviving AIDS patient in the world, and a big MMJ activist. He told me that they were, "from the Mendo Purps cross that produced the Purple Urkle mother." There are three phenos in the seeds, one is Purple Urkle, one is a diesel smelling indica thats very leafy and very light in color with no purple, and one that's a lot like GDP its purple, tight, has a spiced fruity taste kind like fruity nutmeg/licorice.
I couldn't tell you if they are what the guy said they were but after years of growing these seeds and observing pheno's and reading your post it sounds right. I've certainly always been skeptical of the story but I never really questioned it. They were a gift and its kick ass shit. I've pretty much used up those seeds which is why I bought the Ken's GDP hoping to be able to seed it out as an f2 and cross it to everything else. I guess I'm going to back cross the Mendo/Urkle(?) to itself and see what comes of that and also the GDP. I couldn't tell you if that where GDP came from or Ken's GDP but hopefully he has been telling the truth about the origins of the GDP seeds father it would be pretty fucked up to lie about that knowing people would be using his regular seeds for breeding.
I started the rest of my GDP seeds 4 fully germinated and are growing, got my fingers crossed for a girl.

I'll give her another 2 weeks in Veg so I can get a few clones, my ace of spades male is nutting up now