why R this plants leafs yellowing?....

[hydrocannabis]

what can I do to make the yellowing stop so the new growth don't turn yellow.

and is she gunna make till harvest. it'll be a 12-14 week flowering cycle cuz she is a sativa.
so what can I give her to help the yellowing?

hydrocannabis Reviewed by hydrocannabis on 06-27-2008. why R this plants leafs yellowing?.... what can I do to make the yellowing stop so the new growth don't turn yellow. and is she gunna make till harvest. it'll be a 12-14 week flowering cycle cuz she is a sativa. so what can I give her to help the yellowing? Rating: 5

[blink_inc]

you are growing a sativa in a rubbermaid box???

In order to help there is a troubleshooting list that will help to possibly identify the issue at hand.

Pot Size, soil type, nutrients, age of plant, light schedule, light type, temps, humidity.

[GreenLeaf420]

What is wrong with growing in a rubbermaid?

[blink_inc]

Nothing, I do it myself...just not with a sativa.

[hydrocannabis]

so any help. stinky?

[phatsesh101]

i see a little of what looks like minor burn on top but yellowing is normal in flower starts at the bottom and will probly occur in phases usuallyall my fan leaves die during flower even when i add N

[stinkyattic]

Looks like calcium deficiency; if those plants have been in the same pots for over 5 weeks, it's likely the lime is used up and the pH is dropping too. You should check the runoff pH, and use calmag with your fertilizer, especially if you see your pH is low.
You've got to give more info like about your fertilizer and all that for a diagnosis.

[hydrocannabis]

hey stinky will this work. cuz I have a full bag of it.

it says on the bag that it helps prevent and control chlorsis (yellowing of plant foliage due to magnesium deficiencies).


so will this work cuz I am on a tight buget for growing.
and if it will work then how much would I mix with a gallon of water. cuz it doesn't say much on the back of the package.

thanks agen for the info/help. :jointsmile:

[stinkyattic]

If it's yellowing and necrosis from too little calcium, adding magnesium will not help, and could make the problem worse.