Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 21

Thread: Yellowing leafs on young plants

  1. #1

    Join Date
    Jun 2018
    Posts
    533
    Thanks
    1,097
    Been Thanked: 2,169 Times

    Default Yellowing leafs on young plants

    So they are in bio biz light mix, no nutes, watered once in 3 weeks (pots still very wet). I have the light just above the recommended distance (can?t get it any higher in my propagator tent) but I suspect this could be the issue as it doesn?t have a dimmer so the plants are currently both barrels. The light is a ?300w? Mars led. Some of the affected leaves are curling upwards slightly. The seeds were white widow and white widow CBD. Temps are around 28c but lights out 19-20c

    All/any ideas welcome! Thanks :-)








    Sent from my iPhone using Tapatalk

  2. The Following User Says Thank You to Erby For This Useful Post:

    GEORGE (17-12-18)

  3. #2

    Join Date
    May 2018
    Location
    Ireland
    Posts
    1,793
    Thanks
    4,704
    Been Thanked: 6,482 Times

    Default

    How close is the light? I found my mars hydro 300 caused bleaching on young pplants. Although yours seems to be very high up..I dont like LEDS for seedlings. They always seem to go a bit weird until the strengthen up a bit

    Did you say you only watered once in 3 weeks? BUt the pots are so wet! How much water did you give them

  4. The Following 4 Users Say Thank You to Priapus For This Useful Post:

    GEORGE (17-12-18), justintimeshepard (20-12-18), SmobyToker#1 (22-12-18), UpT0wn (17-12-18)

  5. #3

    Join Date
    Jun 2018
    Posts
    533
    Thanks
    1,097
    Been Thanked: 2,169 Times

    Default

    Hey mate,

    The light is 24 inches above them which is (I think) what the book recommended for seedlings.

    They have only been under this light for about a week, before that they were under this light. This one did nothing for them aside keep them alive for 2 weeks lol, I saw next to no growth under it, all the growth has happened in the last week since they went under the Mars...

  6. The Following User Says Thank You to Erby For This Useful Post:

    GEORGE (17-12-18)

  7. #4

    Join Date
    Jun 2018
    Posts
    533
    Thanks
    1,097
    Been Thanked: 2,169 Times

    Default




    Sent from my iPhone using Tapatalk

  8. The Following User Says Thank You to Erby For This Useful Post:

    GEORGE (17-12-18)

  9. #5

    Join Date
    Jan 2014
    Location
    Who Knows
    Posts
    28,652
    Thanks
    620,412
    Been Thanked: 90,468 Times

    Talking

    I would be looking for another cause for your problem beside the light. I have a 220W Ture pull on my plants just 12", and I show no signs of light bleaching or curl up leaves. Pretty sure something else is causing your problem. JMO

  10. The Following 3 Users Say Thank You to GEORGE For This Useful Post:

    Erby (17-12-18), Kurdt (17-12-18), SmobyToker#1 (22-12-18)

  11. #6

    Join Date
    Jun 2018
    Posts
    533
    Thanks
    1,097
    Been Thanked: 2,169 Times

    Default

    Do you think it could be over watering, as the pots are still very wet?

    Other than that maybe the light soil was still too rich?

  12. The Following User Says Thank You to Erby For This Useful Post:

    GEORGE (17-12-18)

  13. #7

    Join Date
    Jan 2014
    Location
    Who Knows
    Posts
    28,652
    Thanks
    620,412
    Been Thanked: 90,468 Times

    Default

    Quote Originally Posted by Erby View Post
    Do you think it could be over watering, as the pots are still very wet?

    Other than that maybe the light soil was still too rich?
    My guess would be the soil.

  14. The Following User Says Thank You to GEORGE For This Useful Post:

    Erby (18-12-18)

  15. #8

    Join Date
    Jun 2018
    Posts
    533
    Thanks
    1,097
    Been Thanked: 2,169 Times

    Default

    Quote Originally Posted by hotshot View Post
    My guess would be the soil.
    Thanks Hotshot. If it is the soil is there anything that can be done at this stage or just have to ride it out?

    Thanks!

  16. The Following User Says Thank You to Erby For This Useful Post:

    GEORGE (18-12-18)

  17. #9

    Join Date
    Jun 2018
    Posts
    533
    Thanks
    1,097
    Been Thanked: 2,169 Times

    Default

    Here are some better pics





    Sent from my iPhone using Tapatalk

  18. The Following User Says Thank You to Erby For This Useful Post:

    GEORGE (18-12-18)

  19. #10

    Join Date
    Nov 2018
    Posts
    146
    Thanks
    290
    Been Thanked: 397 Times

    Default

    cal-mag deficiency

  20. The Following 2 Users Say Thank You to creeperpark For This Useful Post:

    Erby (18-12-18), GEORGE (18-12-18)

Page 1 of 3 1 2 3 LastLast

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
  •  


THCtalk.com Disclaimer - You must be over 18 years old to view/use this site .THCtalk.com does not encourage growing Cannabis or possessing Cannabis. Learning how to grow Cannabis instructions should be for educational purposes only. All Information contained in this web site is for: Historical reference, Scientific reference and Educational purposes only. Visitors to this website are advised against breaking the law as It is illegal to smoke, grow, or possess cannabis in the UK and some US States