N Deficiency or something else?? Help

My first grow. Outdoors, NorCal. About week 3 into flowering and lower leafs turning yellowing and falling off. I’ve been feeding them Fox Farms Tiger Bloom and Calmag in between just giving them straight water. Started low on doses at first but started yellowing as if they need more?? What do I need to stop this madness anything would help.

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hotrodharley

Well-Known Member
My first grow. Outdoors, NorCal. About week 3 into flowering and lower leafs turning yellowing and falling off. I’ve been feeding them Fox Farms Tiger Bloom and Calmag in between just giving them straight water. Started low on doses at first but started yellowing as if they need more?? What do I need to stop this madness anything would help.

View attachment 4386073

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They’re needing magnesium. The green veins with chlorosis showing the sign. This is when they really need cal mag.
 
They’re needing magnesium. The green veins with chlorosis showing the sign. This is when they really need cal mag.
Okay thank you! I thought it was nitrogen problem. How often should I be giving them ca/mg? Bottle says once a week but people on forums say every water is okay? Just don’t want to lose any of my girls
 

hotrodharley

Well-Known Member
Okay thank you! I thought it was nitrogen problem. How often should I be giving them ca/mg? Bottle says once a week but people on forums say every water is okay? Just don’t want to lose any of my girls
I would give it with every watering at a reduced level. Those leaves will not improve. Watch for newer damage after you start.
 
Are partial sun blocking them from direct sun ?

Cali sun will definitely French fry your shit .
They get filtered sunlight til about noon then it’s just full sun. About 4-5 ish the sun goes behind some more trees so they catch a break. Everything seems happy other than the lower leaves being banana yellow:/
 
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