What's up?

I think it's lack of zinc but want it confirmed by the pros cheers guys

hmm i dont know what ur defeciency is they seem like there not too damaged at least tho easily savable keep trying to find the answer i hope u make it in time

I don't think it's any nutrient imbalance/deficiency ... much too sharply bounded for that. maybe the young leaves got a bit heated by the lights? In any case the rest of the leaf looks really healthy. So does the rest of the plant ... that downward shot was very informative and reassuring. I would not worry. cn

whatever it is, is nothing major. so in return, whatever you do, dont do anything major.

It's mainly the bottom leaves to be fair does that help pick anything out?

Thanks for all the replys btw!!

I assume you are talking about the brown tips on the leaves. Mine started doing that and the only answer I could come up with was slight nute burn... I was using a potting soil with Fertilizer in it. I have cut off all fertilizer except for occasional leaf misting and switched to potting soil with no nutes in it to see if thats the problem... I should know in a week or 3

Dont Fear The Reefer said:

I assume you are talking about the brown tips on the leaves. Mine started doing that and the only answer I could come up with was slight nute burn... I was using a potting soil with Fertilizer in it. I have cut off all fertilizer except for occasional leaf misting and switched to potting soil with no nutes in it to see if thats the problem... I should know in a week or 3

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Yh in pic 1 I am The rest I'm talking about the yellow of the leaves, quite a few at the bottom, could this be down to them getting no light at the bottom?

Sorry I cant help other than what I posted, naybe this will help:
http://growweedeasy.com/marijuana-symptoms

Problem: Nitrogen is important during the vegetative stage of your cannabis plants. As your plants start flowering, they will need lower amounts of nitrogen. A nitrogen deficiency will cause the older, lower leaves on your plant to start turning yellow and eventually die. It's relatively normal for your plant's leaves to start turning yellow towards the end of your flowering cycle as the plant becomes nitrogen deficient while it's creating its buds. However, if you notice your leaves turning yellow in the vegetative stage or in the beginning parts of the flowering stage, your plant may be experiencing a nitrogen deficiency which will need to be treated. The first picture is a plant in the vegetative stage which is experiencing the beginnings of a nitrogen deficiency. The second plant is showing signs of nitrogen deficiency late in flowering and is completely normal. The last picture is an infographic about nitrogen and your marijuana plant.

Sound like my problem. Maybe it's normal they only have 3 weeks left I think so I thought it was a bit early for them to start turning yellow for that but maybe that's why.

Glad you found something more definitive, much better than trial and error. Good luck and post results...

Dont over do it!

If they only have three weeks left, don't worry about N. The plant automatically/naturally draws the goodies it needs from the fan leaves which yellow and fall off. You have enough vigor in your greenery to see you to the smoky end. cn

i have d\a dumb and smart question y do ppl not give their plant a little n towards the end if they know itll save there leaves and u want ur leaves so itll grow fast and hopefuly big buds so y do we deprive it of nitrogen in the end when we are so carefull throughout the rest of the process and thx for putting up with my question

good question

newb weed grower said:

i have d\a dumb and smart question y do ppl not give their plant a little n towards the end if they know itll save there leaves and u want ur leaves so itll grow fast and hopefuly big buds so y do we deprive it of nitrogen in the end when we are so carefull throughout the rest of the process and thx for putting up with my question

Click to expand...

because she is taking up more P than anything at the end,and she will naturaly draw on the N from her big fan leaves,The big fan leaves curl up and die off no big deal,they served there purpose by this time.She wont need but a small amount of N during the last stage.

Heat stress is my guess... Not to bad, just a case of getting to close to the lights at one time or another.....

would ur plant benefit from a small dose of n towards the end i mean overall plant health is important