Leafs turning yellow after put undere 12/12

legitroller

legitroller

Well-Known Member
My question is I started the flowering stage like 3days ago an the tops are starting to turn light yellow is that normal or is there a problem thanks
 
Villa

Villa

Active Member
Is it yellow or light green. Pics would be needed to really tell you what's going on. Without pics we will just be giving you misinformation. Could be this, could be that, maybe it's this other thing... all that does is make you crazy trying different things and can hurt your plant even more if your treating it for problems it doesn't have.
I find that when my plants start to stretch the tops get a little lighter in color. I always assumed this was because of the quick growth. They always finish up fine though.
 
S

smokey019

Active Member
If you don't have enough light/lumens you'll start to get the yellow as the plant gets bigger. Changing it to 12/12 gave it less energy and now it's starting to "die". What kind of lights are you using?
 
HotShot7414

HotShot7414

Well-Known Member
If the new growth is yellowing and the stems are turning purple it means too cold at night,if it's more than new growth and started from the top it then sulfur def,
if it start from the bottom and yellowing on leaves that aren't new growth it would be N deficiency.I'm gonna put my money on cold though since it started with
12/12 and i'm thinking the last few hours before lights on the temp drops.If you have any kind of spots and browning it's another story.
 
legitroller

legitroller

Well-Known Member
Sorry these pics are late had to work but since i have put 2 150 CFL's in the tent but they just started yellowing like that as soon as i changed them over..

 
Opm

Opm

Active Member
Looks normal to me. Bit of nut burn on the edge of leaf in pic #3 and the second to last pic looks like a P deficiency.
 
Garden weeds

Garden weeds

Active Member
if it was yellowing from the bottom i would of said yeah pretty normal, i my self have experienced it and many others i know too. but from the top could be many reasons, like the others said, n def, nute burn etc hope you get it sorted :) GW
 
legitroller

legitroller

Well-Known Member
Garden weeds said:
if it was yellowing from the bottom i would of said yeah pretty normal, i my self have experienced it and many others i know too. but from the top could be many reasons, like the others said, n def, nute burn etc hope you get it sorted :) GW
Click to expand...
well I think I have a PPm problem started another thread on that cause my ppm's are way high when i check my run off from water it actully makes my meter max out an the EC so don't know
 
Opm

Opm

Active Member
When I transition from my T5s in veg to the HPS for flower, my top leaves are always a lighter green when they form. They are adjusting to the increase of light.
 
Alexander Supertramp

Alexander Supertramp

Well-Known Member
legitroller said:
well I think I have a PPm problem started another thread on that cause my ppm's are way high when i check my run off from water it actully makes my meter max out an the EC so don't know
Click to expand...
If you were following the FF feeding schedule that would explain some things. The schedule is too hot. 2 tsp. per gallon of GB and TB or a combination of the two feeds them pretty good in general. I would run a few gallons of straight water through the pots based on a 3 gallon pot. 3 times the pots size flush is not needed in your situation. Then next time they need watering just straight water(no nutes)till you get decent runoff. Next time they need water add a tsp. or so of whichever of GB/TB you are using at the time. You could also save your money on the Big Bloom and just get a bag of EWC castings and bubble your own tea that takes the place of the BB. If you have some guanos/kelp/compost around to add even better...be patient and pay attention to the new growth and see how they respond. Up the nutes a bit each feeding till their happy again.
 
legitroller

legitroller

Well-Known Member
Alexander Supertramp said:
If you were following the FF feeding schedule that would explain some things. The schedule is too hot. 2 tsp. per gallon of GB and TB or a combination of the two feeds them pretty good in general. I would run a few gallons of straight water through the pots based on a 3 gallon pot. 3 times the pots size flush is not needed in your situation. Then next time they need watering just straight water(no nutes)till you get decent runoff. Next time they need water add a tsp. or so of whichever of GB/TB you are using at the time. You could also save your money on the Big Bloom and just get a bag of EWC castings and bubble your own tea that takes the place of the BB. If you have some guanos/kelp/compost around to add even better...be patient and pay attention to the new growth and see how they respond. Up the nutes a bit each feeding till their happy again.
Click to expand...
Thanks a lot see I thought the foxfarm schedule was exactly right on what I should be feeding so I take it instead of 3 tsp it should be 2 or 6 should be 3 cause I at first thought it was to much but the plants seem to like it guess not
 
You must log in or register to reply here.
Top