+ Reply to Thread
Results 1 to 10 of 10
  1. 12-20-2009 04:38 AM #1
    doobie_brother
    doobie_brother is offline
    Marijuana Toker Marijuana Toker doobie_brother is on a distinguished road doobie_brother's Avatar
    Join Date
    May 2007
    Posts
    115

    Default Temps for plants

    what's the lowest temp a plant can grow at?
    everything i say on this website is untrue and i have never smoked or grown marijuana and i do not condone it. this is a psychological experiment.
    Reply With Quote Reply With Quote  
  2. 12-20-2009 05:53 AM #2
    Illegal Smile
    Guest

    Default

    To grow mid 60s but they can withstand somewhat lower for periods.
    Reply With Quote Reply With Quote  
  3. 12-20-2009 08:12 AM #3
    Fditty00
    Fditty00 is offline
    Mr.Ganja Mr. Ganja Fditty00 has a brilliant future Fditty00 has a brilliant future Fditty00 has a brilliant future Fditty00 has a brilliant future Fditty00 has a brilliant future Fditty00 has a brilliant future Fditty00 has a brilliant future Fditty00 has a brilliant future Fditty00 has a brilliant future Fditty00 has a brilliant future Fditty00 has a brilliant future Fditty00's Avatar
    Join Date
    Sep 2009
    Location
    In a van, down by the river!
    Posts
    4,082

    Default

    Some versions of ruderalis will grow in sub-arctic temps.
    JN811 takes on DITTY'S CONvict KUSH !!!
    Ditty's $57 grow box made in 22 minutes w/pix
    Reply With Quote Reply With Quote  
  4. 12-20-2009 08:17 AM #4
    mustang519
    mustang519 is offline
    Marijuana Toker Marijuana Toker mustang519 is on a distinguished road
    Join Date
    Sep 2008
    Posts
    152

    Default

    My cabinets are in an unheated shop. I have a small ceramic heater in each cab wired into a thermostat. Night time temps drop to 40 f with no real problems just a bit slower growth. During lights on, temps go to 80f. They do well. Ideal might be 60 night and 75 day but you can go way lower and higher and have good results.

    good luck
    mustang
    Reply With Quote Reply With Quote  
  5. 12-20-2009 08:28 AM #5
    dura72
    dura72 is offline
    Veteran Smoker Mr. Ganja dura72 is a glorious beacon of light dura72 is a glorious beacon of light dura72 is a glorious beacon of light dura72 is a glorious beacon of light dura72 is a glorious beacon of light dura72's Avatar
    Join Date
    Oct 2009
    Location
    scotland
    Posts
    2,012

    Default

    i'd say going lower is safer, it just slows growth( unless u freeze the poor bastard!) but going high too often can screw them up and kill them
    Reply With Quote Reply With Quote  
  6. 12-20-2009 08:36 AM #6
    biggun
    biggun is offline
    Stoner Stoner biggun is a splendid one to behold biggun is a splendid one to behold biggun is a splendid one to behold biggun is a splendid one to behold biggun is a splendid one to behold biggun is a splendid one to behold biggun's Avatar
    Join Date
    Nov 2009
    Location
    In my reality not yours
    Posts
    715

    Default

    Yep prefect is 72-78 with a RH of 30-40%
    Reply With Quote Reply With Quote  
  7. 12-23-2009 04:22 PM #7
    doobie_brother
    doobie_brother is offline
    Marijuana Toker Marijuana Toker doobie_brother is on a distinguished road doobie_brother's Avatar
    Join Date
    May 2007
    Posts
    115

    Default

    sweet thanks, I was thinking that myself, it'll just slow growth not kill the girls. don't mind waiting longer anyways. peace out everyone
    everything i say on this website is untrue and i have never smoked or grown marijuana and i do not condone it. this is a psychological experiment.
    Reply With Quote Reply With Quote  
  8. 12-23-2009 04:28 PM #8
    doobie_brother
    doobie_brother is offline
    Marijuana Toker Marijuana Toker doobie_brother is on a distinguished road doobie_brother's Avatar
    Join Date
    May 2007
    Posts
    115

    Default

    mine have gone to 8 degrees celcius but I've swapped my cycles to 12 12 now with 6pm to 6am being the on section thus having the hps on for the 12 coldest hours.
    everything i say on this website is untrue and i have never smoked or grown marijuana and i do not condone it. this is a psychological experiment.
    Reply With Quote Reply With Quote  
  9. 12-23-2009 05:57 PM #9
    Heads Up
    Heads Up is offline
    Stoner Mr. Ganja Heads Up has much to be proud of Heads Up has much to be proud of Heads Up has much to be proud of Heads Up has much to be proud of Heads Up has much to be proud of Heads Up has much to be proud of Heads Up has much to be proud of Heads Up has much to be proud of Heads Up's Avatar
    Join Date
    Jan 2009
    Location
    In my field of dreams
    Posts
    1,138

    Default temps

    Quote Originally Posted by biggun View Post
    Yep prefect is 72-78 with a RH of 30-40%
    biggun, generally true for flowering as far as the humidity. I've seen some sativas that they say to keep the rh between sixty and eighty percent and in my humble opinion 30/40 is too low for vegging.

    Let me get my bible out to answer the temps question. Courtesy Jorge Cervantes.

    I'll shorten it. Lights on ideal temps 72-76. At night temps can drop 5-10 degrees with little noticeable effect on growth rate. Temps should not drop more than fifteen degrees or excessive humidity and mold may become problems. Daytime temps above 85 or below 55 will slow/stop growth. Temps below fifty, virtually stop growth and temps below forty can cause foliage tissue damage in many strains.
    100% naturally synthetic...the moral majority is neither.
    Reply With Quote Reply With Quote  
  10. 12-23-2009 06:27 PM #10
    gogrow
    gogrow is offline
    wants to party with kesha Mr. Ganja gogrow has a reputation beyond repute gogrow has a reputation beyond repute gogrow has a reputation beyond repute gogrow has a reputation beyond repute gogrow has a reputation beyond repute gogrow has a reputation beyond repute gogrow has a reputation beyond repute gogrow has a reputation beyond repute gogrow has a reputation beyond repute gogrow has a reputation beyond repute gogrow has a reputation beyond repute gogrow's Avatar
    Join Date
    Oct 2007
    Location
    "We're here to fuck shit up"
    Posts
    8,719

    Default

    i've had outdoor plants (in flowering) survive nights as low as 36F.... though i wouldnt recommend anything below 65F
    Thought thought he farted, but he really shit his pants
    Reply With Quote Reply With Quote  
« Trimming | Toping at 5 weeks flowering HUGE plants please help »

Similar Threads

  1. CFL temps (small CFL vs large CFL)
    By Desmond in forum CFL Growing
    Replies: 9
    Last Post: 12-14-2009, 02:14 PM
  2. Leaves Curling DOWN help! high temps! small buds!!
    By whatapothead in forum Marijuana Plant Problems
    Replies: 5
    Last Post: 07-01-2009, 03:10 PM
  3. Temps are high even with a portable AC...please advise.
    By hehehemann in forum Grow Room Design & Setup
    Replies: 26
    Last Post: 06-07-2009, 11:50 PM
  4. Room temps
    By Growgetem in forum Newbie Central
    Replies: 11
    Last Post: 05-18-2009, 09:23 AM
  5. problem with temps in attic
    By element2k10 in forum General Marijuana Growing
    Replies: 2
    Last Post: 04-15-2009, 02:39 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Forum Rules