They don't look very well?

[Snoffy]

Hi All
Any ideas? seems to have been nearly over night, as you can see the one next to it is fine. they had some CalMag 9 days ago so dont think it can be that. it has gone from warm glorious sunshine to alot cooler and rain and cloud? in the sun the pots were drying up each day but recently only watered every other day. they are in a greenhouse with tomatoes and peppers and chillies, but that carnt be a problem can it?

Thanks in advance for helping me rescue her :-/

Snoffy

 

[Apoc]

Looks like Magnesium or Phosphorus but get a couple of opinions. @Emilya is killer dog on diagnosis do let's see if she chimes in.

 

[oldsmokey]

Can you post a picture of the whole plant that is affected.

 

[Scottylikesbud]

If it’s just those lower large fan leaves being affected, and all the other growth looks good, I think the plant may just be naturally pruning those leaves off like they have been out grown.
or root rot idk. How are your other plants in the garden? If they healthy, I don’t see why your plant wouldn’t also be healthy...

 

[Botanical Bondage]

Too much calmag can lock out other stuff. So can improper ph.

Possible too much mag locked out phos or maybe it just n33ds fed?

 

[Snoffy]

Hi Thanking you for your replies here's the sickly looking girl on her own, the the other two next to her. gave them some miracle grow last night as contains Phosphorus, she not looking any better or worse :-/ so have rotated them to sun the other side?

Thanks you all

 

[oldsmokey]

Miracle grow there's not really a cannabis friendly nutrients. you probably have better results if you're using nutrients specifically designed for cannabis growth.

 

[BigD13]

From what I understand, our plants like a nute with an N-P-K of 2-1-3. If you are using MG all purpose like in your one picture, that is 24-8-16 which comes out to 3-1-2. So while not terrible, it’s not the correct ratio. I am using Mega Crop. It is 10-7-18. It’s a 1 part dry nute that you dose by grams per gallon. A lot of people use and swear by it. That would be a better choice for you. You also might want to run 2-3 times your container of just plain water through your plants to rinse out any left over salts from the MG.

Below are a couple of link for you. Good luck.

Greenleaf Nutrients – Hydroponic and Soil Nutrients

greenleafnutrients.com

The Mega Crop Thread

i am switching up to mega crop. i am currently in hempy, and MC is gaining popularity in that grow style. it is being used for others as well. i am looking for anyone posting their experience with MC. of course hempy is more relevant, but i am interested in how it performs in any media. would...

www.420magazine.com

 

[oldsmokey]

Mega crop is good stuff!

 

[Snoffy]

From what I understand, our plants like a nute with an N-P-K of 2-1-3. If you are using MG all purpose like in your one picture, that is 24-8-16 which comes out to 3-1-2. So while not terrible, it’s not the correct ratio. I am using Mega Crop. It is 10-7-18. It’s a 1 part dry nute that you dose by grams per gallon. A lot of people use and swear by it. That would be a better choice for you. You also might want to run 2-3 times your container of just plain water through your plants to rinse out any left over salts from the MG.

Below are a couple of link for you. Good luck.

Greenleaf Nutrients – Hydroponic and Soil Nutrients

greenleafnutrients.com

The Mega Crop Thread

i am switching up to mega crop. i am currently in hempy, and MC is gaining popularity in that grow style. it is being used for others as well. i am looking for anyone posting their experience with MC. of course hempy is more relevant, but i am interested in how it performs in any media. would...

www.420magazine.com

Mega Crop seems to be the stuff, but i had to sit back when the only bag i could find was £90

 

[Scottylikesbud]

Yeah to me and I am a first year grower. It just looks like them fan leaves are just being out grown. Everything else looks pretty green to me. So if the yellowing spreads to the new growth I would worry.
the plant on the right side probably just needs nutes, looks like you’ve fed it already,
The one in the middle looks healthiest, and the one on the left pretty healthy, so those your taking care of very well. the one on the right though.
so yeah, if you’ve already fed it nutes, maybe wait a week or two see if it spreads. If it don’t might have been just a lil nute deficiency
But those are my 2 cents on this topic.

 

[oldsmokey]

I see your in Europe might be to expensive. Something specifically for growing cannabis. I think biobizz is popular over there.

 

[Snoffy]

I see your in Europe might be to expensive. Something specifically for growing cannabis. I think biobizz is popular over there.

Ok, ordered some Biobizz will give it a try thanks

 

[oldsmokey]

Just make sure to follow the manufacturer's feed schedule