3 weeks flower problems

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bansheegirl07

Member
Im 3 weeks into flower and i have problems. My leaf edges are curiling up,tip's are lime green and brown. Bottom leaves are yellowing and dying. PH is stable at 6.5. Temps are 76 day 65 night. Medium is pro mix bx extra 20% perlite, 20% wormcastings with blood, bone, kelp meal, greensand, lime, epsom salts. Humidity stays 45% to 55%. I have 15 plants under 2x1000 hps air cooled lights. 3 gallon grow bags. I went all through all of veg and 2 weeks of flower with no feedings. Then i noticed this and feed with lucas 6/12 about 5 days ago. They are ready to be watered again and need help to figure this out. The strain is PPP. Any help would be great. thank you
 

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AutonomousCannabis

AutonomousCannabis

Member
That's a high ph. i've heard slightly increasing the ph as the plant gets older is recommended but 6.5 is too high.
Looks like burning which could be nutes or lights. idk, maybe your soil is just too kick ass causing nute burn. That or your lights are too close. I would, on the next watering lower ph pure water.
 
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bansheegirl07

Member
I thought a runoff of 6.5 was ideal for soil ? I havent feed anything for like 6 weeks just water and never had any problems until the past week. Then i noticed the leaves rolling up. The bottom leaves yellowing and dying. Do you think a flush would help?
 
NewbGrower^.^

NewbGrower^.^

Active Member
Great progress for 3 weeks old! Seems to me like a small deficiency/lockout or a little heat stress =/ I notice it is at the bottom of the plant kinda.... If that is the case, old leaves are just dieing off due to age/lack of light because at bottom of plant.
 
Serapis

Serapis

Well-Known Member
AutonomousCannabis said:
That's a high ph. i've heard slightly increasing the ph as the plant gets older is recommended but 6.5 is too high.
Looks like burning which could be nutes or lights. idk, maybe your soil is just too kick ass causing nute burn. That or your lights are too close. I would, on the next watering lower ph pure water.
Click to expand...
^^^ BAD ADVICE

A soil PH of 6.5 is ideal. In fact, if you lower it any more, you would lock out Ca and Mg beginning at 6.4

I wish those that didn't know what they were talking about would lurk a bit longer instead of giving out bad advice.

Your plants are going to need more water as they stretch and flower. Make sure to give it to them. The old watering schedule goes out the window once you begin to flower and grow bud. As for your leaves, the flowering nutes have lower levels of N, so the plant will use up stored N in the bottom leaves and work it's way up. About half way through flowering, you can dose with N again, but keep it light and only do it if the plant simply can't afford to lose any more leaves.
You also need to feed! get a nute program going, light in N and higher in P and K.
 
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bansheegirl07

Member
Last time i watered i feed 6 mill of GH micro and 12 mill of bloom should i feed again ? I'v been letting them dry out really good only watering like once a week no drooping but really light. thanks for all the help
 
AutonomousCannabis

AutonomousCannabis

Member
Serapis said:
^^^ BAD ADVICE

A soil PH of 6.5 is ideal. In fact, if you lower it any more, you would lock out Ca and Mg beginning at 6.4

I wish those that didn't know what they were talking about would lurk a bit longer instead of giving out bad advice.

Your plants are going to need more water as they stretch and flower. Make sure to give it to them. The old watering schedule goes out the window once you begin to flower and grow bud. As for your leaves, the flowering nutes have lower levels of N, so the plant will use up stored N in the bottom leaves and work it's way up. About half way through flowering, you can dose with N again, but keep it light and only do it if the plant simply can't afford to lose any more leaves.
You also need to feed! get a nute program going, light in N and higher in P and K.
Click to expand...
oh yea? good to know.
i didnt notice his medium in the pic just assumed hydro.
 
mr.smileyface

mr.smileyface

Well-Known Member
My advice would be..
stick to the plain promix bx. dont add anything cept perlite. (next time)
Throw out the lucas formula and stick to what GH says.
why arent you using grow? what is it there for?
I belive its a nitrogen def. Use the three part correctly.
In 2 gallons i water every 4 days. I juice once and water once. Thats in plain promix.
for you i would do... 5ml grow 10ml micro and 15ml bloom per gallon. Feed them that on the third watering.
Keep growing simple and it will pay off. Its all common sense. Next time just use promix and ratios of 1-2-3.
 
B

bansheegirl07

Member
mr.smileyface said:
My advice would be..
stick to the plain promix bx. dont add anything cept perlite. (next time)
Throw out the lucas formula and stick to what GH says.
why arent you using grow? what is it there for?
I belive its a nitrogen def. Use the three part correctly.
In 2 gallons i water every 4 days. I juice once and water once. Thats in plain promix.
for you i would do... 5ml grow 10ml micro and 15ml bloom per gallon. Feed them that on the third watering.
Keep growing simple and it will pay off. Its all common sense. Next time just use promix and ratios of 1-2-3.
Click to expand...
The only reason I was using the lucas formula is i did a hydro grow with it and had a huge yeild. I havent done soil in years just thought it would work but i guess not. I'll take your advice and add in the grow. Thank you
 
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