What Is The Best Temperature For Growing Cannabis?

What Is The Best Temperature For Growing Cannabis?

We The Growers sits with Dr. Bruce Bugbee where he talks about the optimal temperatures for Cannabis Cultivation. In this clip, Bruce details what he believes is the best temperature for growing Cannabis, and he also goes over some research him and his team have done in regards to Day/Night Differentials.

We are also available to listen to on Spotify and Apple podcasts:

https://podcasts.apple.com/us/podcast/we-the-growers/id1620427747

Produced and shot by the Athena Ag Team.

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49 Comments

  1. @jorgehenriquepessoa2265 on November 5, 2024 at 9:34 pm

    It will trigger reproduction, would that mean that hermies come from a too cold environment at night? Because i might be having this problem.



  2. @ismaelserrentino1493 on November 5, 2024 at 9:39 pm

    Last Night i was thinking that in needed to go back to this clip! Thanks again for this ❀❀❀ cheers 4 all of you



  3. @hektoriuz on November 5, 2024 at 9:40 pm

    negative 7 heavy indica genetics in a 3 level tiers rack, 85f day co2 1500 ppm night 92f but…. got to feed at night.



  4. @340wbymag on November 5, 2024 at 9:43 pm

    People complicate this far too much. Plants like the same temperatures we like. If it becomes hot enough or humid enough for you to be uncomfortable, your plants will feel the same way.



  5. @MarcusRefusius on November 5, 2024 at 9:44 pm

    It’s a danged Weed. Water Light Air Nutrients. Different Phenos grow different plants. Period. Stop overthinking everything. Cool temps at the end will give color. But terps is terps and Trichomes is Trichomes. 50+ years growing and the worst herb I ever grew was wonderful.



  6. @drgr33nUK on November 5, 2024 at 9:45 pm

    Wish everyone used Celcius πŸ˜‚



  7. @ewreck944 on November 5, 2024 at 9:47 pm

    I think when they say cooler temps at night is to bring out the colors. And only in later flower. My indoor temps fluctuate quite a bit from multiple factors but I still get quite good outcomes every time as long as everything else is on point. Right now, I’m running about 80 – 85F during the day (mostly later day) and about 60 – 70F at night in late flower. Mostly because of the light warming the tent. And because my grow is in my bedroom and I like to sleep in cooler temps. Definitely helps with bringing color out



  8. @loveulez on November 5, 2024 at 9:47 pm

    It’s fairly obvious that some cannabis genetic respond differently to others regards light, temperature, ‘diff’, humidity etc and that there is not a singular answer to questions like ‘what’s the best temperature?’. Best for what? Pure Kerala? Afghan from the desert? Pakistani from the low Himalaya? Thai from Chiang Mai? Sativa from Lesotho, or Zamal, or Panama? Different genetics different answers. Look at their native environments.



  9. @kaligrownbudz6200 on November 5, 2024 at 9:48 pm

    Outdoor will always be #1. Fu*k indoor and everything it stands for!!! Respect the og way of cultivation!



  10. @justme-ud2vk on November 5, 2024 at 9:50 pm

    this guy is truly brilliant. hes a light wizard.



  11. @johnnyb4869 on November 5, 2024 at 9:50 pm

    83 in veg



  12. @Hqthc on November 5, 2024 at 9:52 pm

    Thank you for the info 🦾



  13. @gygaxx69 on November 5, 2024 at 9:53 pm

    I’m sitting mid 70s in day and about 69 at night



  14. @goodtogrow7774 on November 5, 2024 at 9:53 pm

    Idk if i belive this guy.



  15. @WeTheGrowers on November 5, 2024 at 9:54 pm

    If you want to learn to grow with Athena, check out The Athena Handbook:
    https://www.athenaag.com/



  16. @lucaschraner on November 5, 2024 at 9:54 pm

    mid 80 does that mean 27 degrees celsius leaf temperature or does that mean room temps??



  17. @chrissoto9882 on November 5, 2024 at 9:56 pm

    πŸ”₯πŸ”₯πŸ”₯πŸ”₯



  18. @hughgodau on November 5, 2024 at 9:57 pm

    i live on the shores of lake huron which stays cold and offers cool nights all summer. average daytime is in the 70s to low 80s. 50/50 coco and soil and just miracle grow. ive noticed they are thirsty with the mulch, and thrive in the cool night time temps . lots of sun too and lollyypop and occasional defole. alot of nights the plants are soaked with dew. something no one mentions.



  19. @olddudegrowsorganically6400 on November 5, 2024 at 9:58 pm

    I live in Thailand and grow in a green house 6m Γ— 12m 10 above grow fans. It’s been super hot highest temp so far (greenhouse) 128.3 f/45.5c and the plants are absolutely killin it praying up all day. They’ve streached a bit and I’m constantly topping them. This time of year I can get 10" a week growth rate. Cross is "Gorilla Glue" Γ— Land race "Foxtail."
    πŸŒ΄πŸ™πŸŒ΄



  20. @TalksWithRyan on November 5, 2024 at 9:59 pm

    I know low humidity eliminates all problems like mold and any other problems



  21. @pharocityfarm on November 5, 2024 at 10:01 pm

    Stupid question here…. Is that kronic? Kinda sounds like him



  22. @outdoorfreedom9778 on November 5, 2024 at 10:01 pm

    I’m in the foothills of central Calif. and have all my plants, Photo Period outside. The temps are nuts right now! It has been in the high 70s and right now it is 58 and starting to rain! Two of my plants are in flower. I’m very concerned but they seem to be taking it in stride!



  23. @brianforgie7050 on November 5, 2024 at 10:01 pm

    I grow outside in Scotland wet and cold below 60 is really warm I’ve learnt temperature means nothing till your down to below zero hard frost will harm the plants rain not so much a problem more problems with hot clammy than cold and wet weather happy growing from Scotland 🏴󠁧󠁒󠁳󠁣󠁴󠁿🏴󠁧󠁒󠁳󠁣󠁴󠁿🏴󠁧󠁒󠁳󠁣󠁴󠁿



  24. @khristymorgan3522 on November 5, 2024 at 10:02 pm

    Do you run fans at night



  25. @miketully1157 on November 5, 2024 at 10:03 pm

    Great video. Low and slow baby!



  26. @RobbiRocks on November 5, 2024 at 10:04 pm

    Straight to the point fantastic information, no boring intro and no annoying back ground music, Thank you so much. Cheers.



  27. @dannyarmata8878 on November 5, 2024 at 10:05 pm

    U want purple/colors u want a a 10-15 dif in that last week



  28. @23lnp on November 5, 2024 at 10:05 pm

    I drop my temps to 22 – 23β€’c the last week and a half of flower.
    Always keep humidity at 60% right until the end and never have an issue.
    I find with these powerful led lights, my plants like slightly higher RH but temps need to be hotter in veg and early flower



  29. @symphantic4552 on November 5, 2024 at 10:06 pm

    Bless this guy for using Celsius some times



  30. @justme-ud2vk on November 5, 2024 at 10:11 pm

    mid 80s in flower? sorry, bro…ive heard you start losing the first terpenes after 74. ive kept my grows that low. i honestly believe hes right in that it makes better nugs. i may not get as fat of nugs…. but i truly think theyre yummier and harder at 74 or below. Hes right in veg as well. but 85 in the first weeks of flower? no.



  31. @SoNoFTheMoSt on November 5, 2024 at 10:11 pm

    30 degrees c is so far from 60 Fahrenheit



  32. @JaSon-wc4pn on November 5, 2024 at 10:13 pm

    UK over winter but indoors average was 7Β°c ❄
    No bugs to deal with,
    Plants are hardy as hell



  33. @dmo848 on November 5, 2024 at 10:14 pm

    78😊



  34. @CertifiedOldguy on November 5, 2024 at 10:16 pm

    Love the knowledge



  35. @danfitzpatrick4112 on November 5, 2024 at 10:18 pm

    I grow at around 74f and approx 50% humidity. I follow VPD and shoot for 1.35. 6 grows, zero problems and good yields…



  36. @Dopefoot on November 5, 2024 at 10:19 pm

    The positive diff helps bring out colour though does it not?



  37. @luchocontratodo on November 5, 2024 at 10:19 pm

    I believe it does matter. The "stress" generated by the tΒ° dropping every night helps the plant to be more resilent, they grow thicker stems and leaves. Always aim to be at least 16Β° at night, and no more than 23Β° at day. (celsius) Just an opinion.



  38. @JayDawg03 on November 5, 2024 at 10:20 pm

    Depends on genetics as well massively im growing mimosa and that does not like anything above 26C in veg and around 23-24c week 3 until harvest and at night 18-20c is good brings the purps out for sure under 20c



  39. @wuwei43 on November 5, 2024 at 10:25 pm

    I just stay in the 70s, hight 60s at night



  40. @kmonty6188 on November 5, 2024 at 10:26 pm

    I think its flat comical that some of you question Bugbee’s data when he literally is one of the only ones who has been studying this for a long time. There were only like 2 licenses pre-legalization and Bugbees University had one of those. We are talking years of studies and yet some of you think your bro science matters more than the expert. Comical.



  41. @alanmaj2754 on November 5, 2024 at 10:26 pm

    Put the light back to 75% 50% at the end and u can also put them a little higher too



  42. @Memflix on November 5, 2024 at 10:27 pm

    "Start warm and cool it off" just like nature will do, April May June July August hot which in some area of Europe is equivalent to the vegetative period, around mid-August the plants begin to flower arriving in mid-September to be around the fourth week of flowering, at that point normally the temperatures begin to drop right in the last 4 weeks of flower maturation, arriving in mid-October with temperatures ranging from 10 to 20 degrees maximum, perfect for harvesting and the beginning of drying ,very often it is enough to observe and copy mother nature to get the best resultsπŸ˜ƒ



  43. @JamesS.254 on November 5, 2024 at 10:27 pm

    I run a fixed temp in my lung room and the inside temp of my tent fluctuates 5 degrees (70-75 f) with the light cycle. My lights ballast is outside the tent. 5×5 tent, mars hydro FC-8000 Evo light. Week 6 flower.



  44. @TimJameson-jg8sl on November 5, 2024 at 10:27 pm

    Sweet good to know thank you



  45. @BrianM-44041 on November 5, 2024 at 10:30 pm

    A negative temperature differential can slow stretch, letting night temps be equal to day or even slightly higher. Neat trick i learned years back.



  46. @loveulez on November 5, 2024 at 10:31 pm

    Anyway this is a good length and intelligent thanks.



  47. @isladetail on November 5, 2024 at 10:31 pm

    As young dont do gardening they tend to Ask olders .
    Big chief Say hΓ© know nothing
    This plant go to shiva illusion master of the mind
    And whenbwe dont know then hΓ© laugh πŸ˜‚πŸŽ‰β€



  48. @Egzoset on November 5, 2024 at 10:31 pm

    I would have appreciated trich porn, with a real lab microscope!



  49. @KannaKullektiv on November 5, 2024 at 10:31 pm

    Very nice talk. Thanks for sharing this.