when do i switch mh to hps?

[tankgunner]

i have some white rhino and ak 48 at about at 36 days in veg from seed.24/0 i havent been able to determine sex yet. i'm thinking their real close to showing.they are about 20 inches tall now and i'm hoping they will show soon cause i dont want to force flowering because of stretch. anyway they are under a 400 watt mh with conversion ballast. my question is do i wait till they show sex or can i change the lights out now?

 

[Guest]

You can change light now, just make sure of distance,so you dont burn the plants as HPS may run hotter (mine does.)Also did you know that you should not run a MH 24hr 21/3 is better.I read in Bogs book not to leave MH on all the time. But HPS & flouros can be left on.I just veg. AK48 mine sexxed in veg, given a few days more yours will too,dont know about WR,but if you have the room go to 12/12 36 days is more than enough.

 

[tankgunner]

no man i didnt know but i do now. thanks man i appreciate they tips.

 

[Guest]

I just did it when I swapped over to 12/12

 

[JJScorpio]

You can switch to HPS whenever you like. I used to veg MH and flower hps but I use hps for both and I have noticed no difference in growth. Are your nodes alternating yet? If you have the room, I would veg for 50 days as it can make a big difference in yield having a mature plant.......

 

[Guest]

yur gonna love that rhino!!!!! anyway a good basic rule to follow is that a plant will finish twice over at the flip. that means that if you flip a 1ft plant it will finish at 3ft
jj..no disrespect but i gotta disagree with ya on the more mature/taller plant thing. well that is on an indoor grow anyways:wink: a average 4x4 room with a average 600w hps will properly penetrate a 3ft canopy. any much taller and it wont make a bit of difference really on your yeilds...as the lowers of your tall plants wont get the desired amount of light to produce anY decent buds. i perpetual grow indoors and always flip my plants at 12-14 inches and average 3 oz's of dense bud and ALOT of good shwag too boot..per plant.

 

[JJScorpio]

I didnt say anything about a taller plant, Im talking of a more mature plant. I keep the light right on top of the plants and I can keep them at 20 inches at 50 days on 24/0 light. I also trim the lower branches and only keep the top colas so penetration isnt a problem. Im not saying that flowering a younger plant is wrong, I have just found that I get larger colas off from plants that I let veg until the branches alternate. Its all ones choice and I have the room so I let them get mature.....

 

[Guest]

if you have a plant the starts to flower at 1 ft its not true it will be 3 ft when done..lol it depends on many factors


lazy noobs need to do a search on related topics

 

[Guest]

ohh ok i see? so when you flip your 20inch plant it is more mature than a 12-14 inch plant ??? i would assume that if we did a side by side grow and WE flipped our plants the same day that they would be at the same stage of maturity..but thats just me. i started my post directed at you ....jj...no disrespect but...(trying to be nice) let me know if you wanna debate :wink:

 

[Guest]

hey 420..you want some to??? read my post..it says that its a basic rule. and it applies to generally alot of plants/strains!!!!!!! IT IS TRUE :wink:

by the way ..who the fuck you calling a lazy noob??? i've forgotten more grows than you probly done!!!

 

[ft100]

my experience

my experience

well this is just my experience with growing. i flipped 12/12 with my bubblicious and changed to a hps light. i started off at 10 inches and 9 days in they are at 23 inches. i will add that i gave one last feeding of grow ferts 1 day in to 12/12. i think that if i would have kept my mh in there for the stretch then maybe they would not have stretched as much. i grow in a cab and i am getting close to the highest i can go so hopefully they do not stretch more. so maybe keep the mh in there for a week or two in to 12/12 if trying to control height. just a different take on the subject.

 

[Guest]

To me how long you veg is related to growroom ceiling height and or area of room, and if growing a bushy or tall plant... JJ whats the point of veg for 50 or so days if you trim the lower branches. Shouldn't you only veg that long when you are training for a screen. I'm no expert but my room is 4 x 4 with 12 to 16 plants that give me 1 or 2 oz a plant min. With 21 days of veg, As for maturity if a plant is veg for 21 days then 12/12 for 30 days it is the excact same maturity as a plant grown in veg for 51 days.You are not God and can only control stages of plants development not age (ie) maturity.

 

[Guest]

Forgot, Now if the same plant after 51 days of veg is then 12/12 for say 55 days then no shit that plants more mature! = 106 days Of corse me switching at 21 days + 55 = 76 days means yes less total oz's but I will already be smoking my 1 month cured Cola buds and watching my new crop of plants that would be at 30 days at 12/12 . Yes I start 12 or 16 clones or seeds in a seperate cab. Just my thoughts.

 

[JJScorpio]

It is deffinately not true that a plant triples in size when put to flower, unless you do so when they are still babies, and then of coarse they are going to triple. They are going to finish growing whether you go to 12/12 or not. If they are allready full grown before you flower, how can they get any bigger? If you flower them at 20 days they will probably quintuple in size for you. Doesnt a dog triple in size from when its a puppy? Doesnt a human triple in size from when they are a child? It only makes sense. My plants probably grow about 6 inches total when they flower, thats because they are allready mature. I thought you guys were experienced growers? Why should you have to wait just because you let them get to 50 days? Dont you have a seperate vegging room? If I start a pack of seeds when I start a batch flowering, they are done flowering when the veggers are 50 to 60 days. Furthermore, when you get more experienced, you will learn to get rid of the lower popcorn branches and keep the top 8 or so big branches from your LST. Go argue with someone else, Im here to help people grow pot. Tough shit if you dont like my opinion. If you have never grown a plant until maturity, how can you say all plants triple in size?

 

[Guest]

yah I over veged at about 45days and my plants did not tripple so that is sort of a loose rule...dam you veged for 35days and they havent shown sex? ehh white hairs near the nodes? plants usuallly show in the first 3 weeks...hope this pic helps.. oh and you switch to HPS during 12/12..

 

[JJScorpio]

Exactly what I was talking about bandan. Now, do you think they would have tripled in size if you flowered at 25 days? They probably would have...From my experience, it takes most strains 45 to 60 days to reach maturity.......Good post

 

[Guest]

JJ:: I agree 100% with your last post, as it is much different than my understanding of your 1st.If I only had a permit for say 4 plants,than you are right longer veg = bigger,bushier & more buds. But I dont and I like to grow 4 strains ,4 of each so quick turn over is my opt. Everyone thinks they know the best way, I will never say that, I just give my personal exp. on things I have done,( far from the best.) lol That's what makes this place the best MJ grow site around!!!!!

 

[JJScorpio]

Thx THC. I think that is the main reason why most people flower early. I have flowered early also, and ended up with the big stretch. I now keep the lights within 8 to ten inches if I can and that keeps the length of the plant down because it doesnt have to "reach" for light. And thats what the stretch is. Maturity is also why an outdoor plant doesnt stretch. Could you imagine if an outdoor plant tripled in hieght during flowering? They dont because they are mature and dont need to grow larger. I just have a seperate room for vegging and flowering so I am able to veg them longer, which leaves very little stretch. Im sorry I got upset, but this will be my 26th outdoor grow and I have seen most everything there is to see with these plants, and I wouldnt tell you my opinion if it werent from experience.......

 

[Guest]

Im sorry I got upset, but this will be my 26th outdoor grow and I have seen most everything there is to see with these plants, and I wouldnt tell you my opinion if it werent from experience.......

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theres my point rite there...your an outdoor grower trying to argue your opinion in an indoor soil room!! why dont you go pose in an outdoor forum ? your over here giving threory about shit you obviously dont know shit about!!!! actuallu why dont you go post for an opinion in a breeders forum about the basic rule???
i will post the rule again as laymen as possible for you so you understand it!!!
an "average" mj plant that is flipped at 1 ft...will finish at aprox 3 ft ! indoors..under hps or mh. and bye the way .....i can veg a plant 21 days and make it look like your 40-50 days...and so can many others on this site...so yea ya thought rite this is a growers forum so dont come here posing!!!

 

[bartender187]

at 12/12... or some do it, one week after they flip em (the mh light helps minimize the stretch in early flowerin)