Yellow leaf question

Dilan R Wertz

Dilan R Wertz

Active Member
So this is my first grow and my white widows are 6 1/2 weeks and 5 1/2 weeks old. I just transplanted tonight into 5 gallon square pots. One is on fox farm ocean forest and the other is in Fox farm happy frog. Been Using fox farm nutes (grow big and big bloom) every other watering slowly adding more. Also using cal mag every watering cause I'm using distilled water. Ph 6.5-6.6. Water ever 3-4 days or really when the pots get light. Under 400 watt mh. Temps 75 with light on 65 with it off. Have a fan blowing on them gently. I think I am gonna wait about another week maybe and then switch over to 12/12 and start my flowering. But I noticed tonight that my bottom set of leaves (3rd set) is turning yellow. I can't figure out why. It's only on the one plant. But otherwise they look really healthy to me. But wanted to see what you guys thought my issue might be with the leaf turning yellow.
 

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Richard Drysift

Richard Drysift

Well-Known Member
Yellowing of the lowest fans is normal when shaded under thick canopy like this; a 400w can only penetrate so deep. It is from light deprivation; par for the course under electric lighting. The plants look healthy and green otherwise; don't worry about that yellowing leaf just pull it off as it shrivels and dies. Lollipop the plant just before you flip it to bloom phase by removing the lowest leaves and any tiny ass low branches...a good time to take some clones if you know it's a girl.
 
Dilan R Wertz

Dilan R Wertz

Active Member
Richard Drysift said:
Yellowing of the lowest fans is normal when shaded under thick canopy like this; a 400w can only penetrate so deep. It is from light deprivation; par for the course under electric lighting. The plants look healthy and green otherwise; don't worry about that yellowing leaf just pull it off as it shrivels and dies. Lollipop the plant just before you flip it to bloom phase by removing the lowest leaves and any tiny ass low branches...a good time to take some clones if you know it's a girl.
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Cool deal. That's what my guess was but just wanted another opinion. And yeah I know they are girls but I have more seeds to use lol I think I will be switching to flower in the next week or so.
 
Greenthumbs256

Greenthumbs256

Well-Known Member
Dilan R Wertz said:
Cool deal. That's what my guess was but just wanted another opinion. And yeah I know they are girls but I have more seeds to use lol I think I will be switching to flower in the next week or so.
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It's very common for a plant to double or triple in size once you flip to 12/12 take that into consideration. Also continue veg feeding at least a week into flower. Just a few things of advise that others have Givin me and it helped alot!
 
whitebb2727

whitebb2727

Well-Known Member
Don't switch to bloom feed too early. I prefer a balanced NPK from start to finish.

With yours I wouldn't worry much. Slight burn on leaf tip means they are on the edge. Meaning you are feeding about all they can handle.

Sometimes bottom leaves will yellow and die off. Its a thick canopy. The very bottom leaves will fade and fall off due to lack of light. Its no biggie. Watch and if it spreads then you have a problem.
 
K

karl grows

New Member
Dilan R Wertz said:
So this is my first grow and my white widows are 6 1/2 weeks and 5 1/2 weeks old. I just transplanted tonight into 5 gallon square pots. One is on fox farm ocean forest and the other is in Fox farm happy frog. Been Using fox farm nutes (grow big and big bloom) every other watering slowly adding more. Also using cal mag every watering cause I'm using distilled water. Ph 6.5-6.6. Water ever 3-4 days or really when the pots get light. Under 400 watt mh. Temps 75 with light on 65 with it off. Have a fan blowing on them gently. I think I am gonna wait about another week maybe and then switch over to 12/12 and start my flowering. But I noticed tonight that my bottom set of leaves (3rd set) is turning yellow. I can't figure out why. It's only on the one plant. But otherwise they look really healthy to me. But wanted to see what you guys thought my issue might be with the leaf turning yellow.
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hi bud on one picture the leaf tips look yellow what ppm are you running ? and maybe over watered
 
Dilan R Wertz

Dilan R Wertz

Active Member
karl grows said:
hi bud what food are you running
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Fox farm grow big and big bloom. And cal mag. I got something going on with some of my leaves. Think it may be magnesium.. can I get your opinion on what I should do.. have goldish brown spots and some edges curling up. Just started but it's on a decent amount of leaves. I just transplanted last Thursday. And put under 400 hps Saturday and them after that it started. In ocean forest. Temps are 75 with light on and 65 with it off. RH is 50-60. I gave 7.5 ml of cal mag and 11 ml of big bloom last night. Don't know if I have a build up or what. Only been giving nutes for few weeks.

It won't let me post pics right now but I have a thread started with some pictures. I think I have a mag deficiency is the title of the thread
 
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