I'm stumped! - Stunted growth?

[Greeneye98]

Hi everyone I'm worried about my seedling it's 3 wks frm seed and is so small! It's an incredible bulk feminised that I germinated and planted in a solo cup in a mix of soil and perlite that I've used previously and had no problems with.... It grew fine for the first wk lights were 24/0 temp 22 humidity 70-75% light is a 23w cfl until I can get a 400w hps

Then it went pale green and the cotyledons started turning yellow so I transplanted into a 12 litre pot and changed lights to 18/6 and it's growing still but only small leaves....she's had no nutrients as the soil should have enough for now.... Ph is 6.0.... Oh and she's in a spare cupboard 3x3x7 with the door open my windows are open all-day for fresh air

 

[Greeneye98]

Re: I'm stumped?? Stunted growth!?

this is my girl 3 wks old.... I placed a lighter to show the size

 

[Cultivator]

This is often a sign of root problem. Either over watered or poorly aerated soil.

 

[BonzaSeedBank]

I had this problem and it was caused by over watering

 

[Greeneye98]

This is often a sign of root problem. Either over watered or poorly aerated soil.

Thank-you I think you might be right now I remember when transplanting the soil was quite tight

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[Greeneye98]

I had this problem and it was caused by over watering

I hadn't watered her when the problem started... I had pre-watered the soil before potting her up tho

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[Mag7]

I'd also look at the PH. I had the same problems with my first grow. Using soil, I think the best ph is 6.8. Also the soil being tight along with ph, working together to cause slow growth. Try and fix those two issues and give it few days to recover. I hope that helps


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[Cultivator]

i doubt its the ph, it would have to be massively out at this stage of growth. Add some great white mycorrhizae to your next watering and watch the plant recover.

 

[Mag7]

I think I was running ph at 6.8 in a medium based grow of Peat moss, Vermiculite and Perlite. I has root lock for weeks until I adjusted down the ph. The plants never grew until I did this. That's the only reason I suggested making a ph adjustment


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[Greeneye98]

i doubt its the ph, it would have to be massively out at this stage of growth. Add some great white mycorrhizae to your next watering and watch the plant recover.

Thanks I will try this .

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[Plant Dad]

Hi everyone I'm worried about my seedling it's 3 wks frm seed and is so small! It's an incredible bulk feminised that I germinated and planted in a solo cup in a mix of soil and perlite that I've used previously and had no problems with.... It grew fine for the first wk lights were 24/0 temp 22 humidity 70-75% light is a 23w cfl until I can get a 400w hps

Then it went pale green and the cotyledons started turning yellow so I transplanted into a 12 litre pot and changed lights to 18/6 and it's growing still but only small leaves....she's had no nutrients as the soil should have enough for now.... Ph is 6.0.... Oh and she's in a spare cupboard 3x3x7 with the door open my windows are open all-day for fresh air

soil should be a good buffer for PH unlike peat. Soil isn't gonna care what the PH is. Is that a clay pot? You sure you're watering enough. That soil looks dry.

 

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gotcha on the similar threads grave digger - it’s from 2016