benmorgan236
Member
Say if you change the climate from a average temperature of 79 to 70 during flowering will this make any difference in bud yield/density/quality/color?
Temperature levels.
- Thread starter benmorgan236
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topfuel29
Well-Known Member
When Temps. get into the mid 60's and lower you'll start to see some changes.
IMO- It's good to have your plants in flower get some of the cold dark cycle air. When the lights are off. Denser, more colorful, more aromatic Buds. The draw back is the cold slows the plant down a little bit. You can add 7-14 days more to Flower.
When the lights are on Temps in the Flower room are in the 70's. That warms the soil. The plant uses the soil as a heat sink. The soil is say 70-F so the plant is sucking up @70-F nutrients from the soil. I had my plants down to 19-F in the dark cycle 20's 30's no problem. Just keep your soil warm. You need to ease into the cold to. harden the plants off for cold. If your soil gets to cold it will start locking out nutrients.
Good Luck on Your Grow.
IMO- It's good to have your plants in flower get some of the cold dark cycle air. When the lights are off. Denser, more colorful, more aromatic Buds. The draw back is the cold slows the plant down a little bit. You can add 7-14 days more to Flower.
When the lights are on Temps in the Flower room are in the 70's. That warms the soil. The plant uses the soil as a heat sink. The soil is say 70-F so the plant is sucking up @70-F nutrients from the soil. I had my plants down to 19-F in the dark cycle 20's 30's no problem. Just keep your soil warm. You need to ease into the cold to. harden the plants off for cold. If your soil gets to cold it will start locking out nutrients.
Good Luck on Your Grow.
MFB
Active Member
Don't let it get too cold. One of my plants got pretty fucked up from temp dropping below 60* at night. Not sure if she is going to make it to Christmas. Atleast it will be a pretty purple bud :/
I think a little excess heat is fine if you are hydro because of the cool water moving through the plant. I can't prove this though, but a little warmer temps never seemed to hurt the girls.
I think a little excess heat is fine if you are hydro because of the cool water moving through the plant. I can't prove this though, but a little warmer temps never seemed to hurt the girls.
thepaintedchef
Well-Known Member
If your temps are too high add some co2 it allows the plants to handle higher temps. Don't ever lower your temps to induce color fade. When grown right if the plant is supposed to show colors it will on its own. Gotta learn the plant and what it likes.
stay dank
stay dank
BWG707
Well-Known Member
I don't get it. It's said that cooler temps are ideal for flowering indoors, but what about the high temps that Cali outdoor growers endure? I don't see any negative effects. Also wouldn't high temps and lights/sunlight increase production of the plants natural sunscreen/trichomes?
benmorgan236
Member
Thanks everyone for getting back to me so fast, this is my first time trying 12/12 from seed and I was just pondering about new ideas to increase potency of the plants. I'm growing blackberry kush currently, and was wondering if indica plants produce higher quality bud in cooler temps than sativa strains? If so, anything tips to really get maximum frostiness at the end of this grow? Besides molasses, bat guano, and use the usual nutrients? I really would love to hear some innovative techniques!
benmorgan236
Member
That's what I'm saying too? What your talking about makes since too. I have been up in Hombolt county for camping many times and it get hot and humid as hell out there, and some really good bud comes from that part of Cali
Nullis
Moderator
If the temperature outdoors got hot enough, long enough, you would see negative effects.
Of course, all things are relative. Plants grown outdoors have an open atmosphere, and don't have to contend with poor/limited circulation that an indoor grow room would present, as such a room can quickly become depleted of CO2 (unlike an open area outdoors). Outdoors the light/heat source also moves, as opposed to the generally (or in relation) fixed light source of an indoor grow room: where the heat of HID lighting quickly builds up and concentrates within the canopy. Outdoors it is generally quite a bit cooler in the morning, or away from where the Sun is directly shining. Weather outdoors potentially changes all the time, and while it can get fairly hot in a certain place during a certain time or season, it is generally relatively cooler during other times.
Plants grown in warmer/hot climates become adapted to those conditions. Plants cool themselves off, and the air around them, by transpiring, consequently fixing CO2 for photosynthesis in the process, however they will close their pores if the temperature is too hot and water loss to the atmosphere would be too significant, or during drought conditions. Even though photosynthesis will slow or stop with conditions at their most severe, it will begin again as soon as the weather permits.
So despite that there are peak daytime temperatures in the 90's outside, that doesn't mean that the plants wont grow more often than not or when they can and produce good finished product.
Of course, all things are relative. Plants grown outdoors have an open atmosphere, and don't have to contend with poor/limited circulation that an indoor grow room would present, as such a room can quickly become depleted of CO2 (unlike an open area outdoors). Outdoors the light/heat source also moves, as opposed to the generally (or in relation) fixed light source of an indoor grow room: where the heat of HID lighting quickly builds up and concentrates within the canopy. Outdoors it is generally quite a bit cooler in the morning, or away from where the Sun is directly shining. Weather outdoors potentially changes all the time, and while it can get fairly hot in a certain place during a certain time or season, it is generally relatively cooler during other times.
Plants grown in warmer/hot climates become adapted to those conditions. Plants cool themselves off, and the air around them, by transpiring, consequently fixing CO2 for photosynthesis in the process, however they will close their pores if the temperature is too hot and water loss to the atmosphere would be too significant, or during drought conditions. Even though photosynthesis will slow or stop with conditions at their most severe, it will begin again as soon as the weather permits.
So despite that there are peak daytime temperatures in the 90's outside, that doesn't mean that the plants wont grow more often than not or when they can and produce good finished product.
benmorgan236
Member
Sounds like you have a solid knowledge in growing, haha I'm guessing you have a ba in botany dude.
BWG707
Well-Known Member
Thanks for the info. It's pretty much the same thing I was thinking but I've never heard anyone elaborate about it. Great explanation.
benmorgan236
Member
lkjhlkjhlkjhlkjhl
DreadsNropeS
Member
alright, so my grow room is in the basement and it's stays around 55° down there. During the day the grow room it's self has been hitting 92° and it's been bothering me so today I did a little rebuild and got my temps to stay around 82° which to me will do just fine. before I did my changes my temps were going to around 65-62 at night. And with my changes im thinking my temps will go to about 55 or so. Is that to big of a change? the fan I have been using is one with a heating coil in the back. And has been on low heat day and night. Today I turned it to just the fan, helping with my heat issue, and installed a dryer vent out the top back corner. Should I put a hole on the lower front of room to move the air. Or is that constant 55° coming in right at the roots bad.
scarelet
Well-Known Member
That's best said........
DreadsNropeS
Member
so 55 will be ok, thats why i have had the fan on and heating. cuz i cant always be there at lights off to turn on some heat and keep it a little warmer down therr. no it will not freeze, but over the last couple weeks it has dropped to a blistering -25 for a week or so outside. and well during those temps there is no possible way to keep the basement at 55. this was a big reason for the heating fan. when it drops to neg temps i will have to put some sort of heat in there or it will get to a dangerous temp for my baby.
From personal experience I grow indoors. I have 2 hps at moment with co2 and temos at 80 during the lighted hours. My girls actually are slow at this temperature. I keep temp at 76-77 (between leaves of plants) and they avtually like it better then 80 at leaves. Theres different strokes for different folks but imo 80 is a touch warm 76 w co2 and they love it way better then 80
Nullis
Moderator
Not even insulation? Is it a finished basement? Is it insulated at all? You could go out and get some 1" thick sheets of expanded polystyrene foam insulation. You might need several depending on the size of your area. Put one or a piece of one on the floor, and put your plants on top of it to keep them from being directly on the floor. You could also line the walls of the basement, or the grow area, but if you said you had heat issues with lights on this could exacerbate them. Cool your lights and exhaust the heat back into the basement if possible.
Did you say you were using some kind of heat on low during the day, too? Just use a heater a night. Use a good electric heater that is UL listed or something, at least.
DreadsNropeS
Member
exterior walls are insulated, dirt floor, very unfinished half basement.(previous tenant/landlord- fucking a right-left his stuff and said go right ahead. already had an area set up, just had to remodel a little bit for my likes.) only concrete is the actual grow room. the room itself has Styrofoam that has been liquid nailed to the walls. and i have a door made of heavy duty black plastic with mylar taped to the inside. and a wood frame that it is stapled to except a little to get in and out. i do have some 4" flex hose for a vent in the back corner which is terminated in the main room. i think i should cut a hole in the plastic door down low for more air movement, only drawback is the cold air at night. daytime will be just about perfect temps with the hole i think
kinddiesel
Well-Known Member
non co2 rooms most people keep the plants 75f. they say the buds look the best. but in my opinion from 80 to 70 same thing. but in late flower drop the temp to 55 for a week makes a huge difference. with co2. I had my grow room to 105 f !!!! with 2ooo ppm co2 in early they loved it got the yield up massive buds. then drop it to that 55 for 2 weeks during flush.. hard buds. super purple or blue colors.