why are my bottom leaves turning yellow?

wombatt

wombatt

Member
hi i have 9 plants and the oldest ones leaves are turning yellow at the bottom is this normal thanks ??
 
kryptakrOnic

kryptakrOnic

Well-Known Member
Yea it is normal for lower leaves 2 turn yellow ...but keep an eye on it u may need 2 flush if it turns out its a nitrogen lockout ...how old r they..n e nutes??
 
S

SunKissedBuds

Well-Known Member
wombatt said:
hi i have 9 plants and the oldest ones leaves are turning yellow at the bottom is this normal thanks ??
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need pics please!

without looking i would say it is a nitrogen defficiency, common mistake! feed the soil a tiny amount of blood meal or some other type of nitrogen supplement.
 
Greyskull

Greyskull

Well-Known Member
Nitrogen defieciency is what you have there
starts at the bottom and works its way up.
maybe add cal/mag+ 10ml/G as its 2-0-0, or even get some pure N.

good luck
 
S

SunKissedBuds

Well-Known Member
if they are still young, you can add nutes but you must be very careful as to how much you use... if you do put nitrogen into your soil only use a fraction of reccomended amount.
 
tyke1973

tyke1973

Well-Known Member
Too many folk panic once they see a little yellow even a yellow leave the first leaves to come are the first to go leaves do just die of natural causes.but if you have yellowing in the top area of the plant then something is wrong unless it is in bud.but if you do get yellowing in the top section at any time just flush the plant with a ph of around 5.5 till the water runs clear leave her to dry then carry on feeding.only feed a couple of times a week if in soil let the top 3 ince dry out b4 re watering.Get a large bucket the biggest you can find or test the ph of the water in the tap if it is under 6 you are fine you can go ahead and keep pooring water over the grow medium till it runs clear.If the water is a little high then set it around 5.0/5.5 and keep pooring till it runs clear leave till dry then re~feed but if you have made a fresh batch up then add the feed at after your final flush,But don't just flush at the end of a grow a little work never hert anyone i flush at least 3 times during veg and 4 including the last one during flower good luck.Cannabis growing in the wild would get all the salt and other nastys out by flushing when it rains so you have to do what nature would my yeilds have increased alot since doing this plus it is not very often that i have yellowing or any other problems,That i think are all down to excess salt build ups.You willknow when you have flushed enougth because the water will be dark at first and will clear always flush when makeing a fresh batch of nutes then your final flush you can put new nutrients back in that way you are not loseing valuble growing time and the nutrients lost will be re gained.
 
wombatt

wombatt

Member
tyke1973 said:
Too many folk panic once they see a little yellow even a yellow leave the first leaves to come are the first to go leaves do just die of natural causes.but if you have yellowing in the top area of the plant then something is wrong unless it is in bud.but if you do get yellowing in the top section at any time just flush the plant with a ph of around 5.5 till the water runs clear leave her to dry then carry on feeding.only feed a couple of times a week if in soil let the top 3 ince dry out b4 re watering.Get a large bucket the biggest you can find or test the ph of the water in the tap if it is under 6 you are fine you can go ahead and keep pooring water over the grow medium till it runs clear.If the water is a little high then set it around 5.0/5.5 and keep pooring till it runs clear leave till dry then re~feed but if you have made a fresh batch up then add the feed at after your final flush,But don't just flush at the end of a grow a little work never hert anyone i flush at least 3 times during veg and 4 including the last one during flower good luck.Cannabis growing in the wild would get all the salt and other nastys out by flushing when it rains so you have to do what nature would my yeilds have increased alot since doing this plus it is not very often that i have yellowing or any other problems,That i think are all down to excess salt build ups.You willknow when you have flushed enougth because the water will be dark at first and will clear always flush when makeing a fresh batch of nutes then your final flush you can put new nutrients back in that way you are not loseing valuble growing time and the nutrients lost will be re gained.
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thanks for the info i cut the yellow leaves off and repotted yesterday now the next leaves up are going yellow with brow on the end what should i do about that thanks...........
 
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