The Grow Awards 2026 🏆 
Leaves getting a bit yellow
GardenOfTheRisingSunstarted grow question 4y ago
What excess or deficiency can this be?
My guess is Mg…
Solved
Leaves. Color - Yellow
likes
ChitownCannaChicaanswered grow question 4y ago
Hi, I would say slight nitrogen abs cal/mag. Show the full plant next time—- placement can confirm this…
Similar Grow Questions
Solved
Maincard
Yellow leavesHello it is day 36,i had pH issues but i corrected it to 6,5 but the leaves are still yellowing .I currently use canna nutrients, Flores, boost, ryzotonic and canazym. I use tap water and I'm growing in a soiles medium,(coco, peat moss and perlite. ThxLeaves. Tips - Burnt
Leaves. Color - Yellow
3y ago
3
3
Solved
UKAgent47
Yellow patches on old leavesHey, hoping I’m right in thinking she needs some nitrogen? Ph soil is 6.1
Biobizz All mix soil. Thanks in advance.Leaves. Color - Yellow
4mo ago
6
4
Solved
CreamOfTheCrop
Brown/Grey spots on the leavesHey, I hope this is my last question for this grow :P I've noticed some brown/grey spots on the yellowing leaves, what could they be, deficiencies or sunburn? I'm still feeding the plant with nutes, but the next watering will be a flush, so I didn't expect discoloring before that5y ago
1
1
Solved
FeebleSnane
Starting to fade? Or nutrient deficiency?One of my plants has several fan leaves that are turning yellow/purple, and I can't tell if it's low on N or starting to fade. The plants are 2 days into week 5 of flower with a 9-10 week flower period, so it seems a little early for it to be turning colors like this.8mo ago
4
Solved
buddhi_coop
NutrientsIs this a good cocktail for my next feeding? I’m having major nutrient deficiencies or something. These yellow leaves got me stressed.Leaves. Color - Yellow
Feeding. Deficiences
Feeding. Other
5y ago
4
4
Solved
DoMoNe
Leaves losing "color"/turning yellow-ish. (autopot without nutes)I've been using autopot system wihtout nutrients, plants now went to bloom.
Could the smallest of the bunch (NorthenLight left down corner) have some defiency?
As others are not "complaining", at least yet.
Should purchase nutes that work with my autopot, only biobizz left now.Leaves. Color - Yellow
Leaves. Color - Pale
Feeding. Automatic systems
4y ago
1
1
Solved
Colibri_grow
deficiency symptomsI'm a beginner and some plants are getting fallen leaves. They are being watered with the amount of approximately 10% of the volume of the pot and an average pH of 6.5. Runtz has Mag deficiency symptoms after I fertilized, is she also lacking N deficiency?4y ago
2
2
Solved
Anorak
Tips burning, brown spotsHello growers! I have White Widow in the 5th week of flowering. Only top leaves are affected, some of them are turning pale yellow. Feeding her with NPK:18-12-18 and Cal-Mag. The brown spots are my biggest concern.
THANK YOU!!Leaves. Tips - Burnt
Leaves. Color - Yellow
4y ago
1
3
Solved
deepsheeba
What is wrong with this plantCan you please tell me what is that?
1,5 Bloom GHE
1 Biobizz BLoom
0,5 Fish MIX
1 Algae concentrate
0,5 revive
1 ml bio heaven
1 ml Bio acti vera
2 drops PRO Bloom
2 ml Cal Mag Bio BIzz
HNO3 as acidifier. I bring everything down to 650 ppm and 6,3 pH
soil : ALL MIX4y ago
3
Solved
Coconut_kiss
New growth on my plant has discoloration on leaf tips,possible causes?Leaves. Color - Yellow
6y ago
1
3
Solved
greenlighter
Leaf tips yellowing in early flower... Nute issue or normal?Hi guys, so my LSD-25 is on the second day of flowering. Assuming everything else is perfect, does the soil (Happy Frog) need fertilizer or should I let her be?
Organic fertilizer: amazon.com/Down-Earth-Organic-Fertilizer-2-5-0-5-2-5/dp/B000CO7ZYI
Thanks for the help!Week 5
Leaves. Color - Yellow
4y ago
4
6
Solved
dank604
Spots on leavesI'm still dealing with some spots that seem like cal-mag lock-out/deficiency but my PH is at 6.2-6.5. I think the light was too powerful I moved it up from about 16" to 18". I hope to have a lux meter soon to confirm any light stress issue.
Still look like PH fluctuation?6y ago
1
2
Solved
ykscotttyk25
My plant is sick like never before,should I end her life or wait for a mericalMy plant is sick like never before,should I end her life or wait for aLeaves. Tips - Die
Leaves. Curl up
Leaves. Color - Yellow
2y ago
4
4
Solved
weedisdegenerate
Yellow tipsThe yellowing on the tips, what do you think it is? Was my raising the light a good play?Week 5
Leaves. Color - Yellow
6y ago
2
Solved
JustAnotherGardener
High TDS and low ph runoff - Lockout? deficiency?Struggling with some bad soil (beginners mistake). I water with dechlorinated tap water at around ph 7.4 and 400ppm (not feeding yet). But runoff ph is 6 and around 1000 ppm.
Am I dealing with a N-lockout? why such a ph difference and high TDS value?Leaves. Color - Yellow
Feeding. Deficiences
5y ago
4
5