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Back to Grow Questions
Weird burn
Cana_Gen
started grow question 5y ago
Thought I had a calcium deficiency but now I’m not so sure. Could have got a bit too much direct sun out of the tent. Any ideas on this ?
Solved
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
likes
GMSgrows
answered grow question 5y ago
That's a little more than a calcium deficiency. Looks like some lockout happening. Maybe flush out good and go with half the recomended dose on the label if your not feeding by ec amount. Watch new growth for repair. Cheers
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Selected By The Grower
Similar Grow Questions
Solved
707grows
Continued leaf yellowing
I had a high ph (7.4-8) for the past few weeks. Began flowering at about the same time. It seems to have gotten it down now between 6.6-7.2 mostly 6.6-7)I have had leaves yellowing fan leaves throughout and still. Is there another problem or is it normal to lose them now?
Leaves. Color - Yellow
5y ago
2
3
Solved
SirTucksAlot
Is this light burn or wind?
I’m running 3 different lights one being a EcoSun LED Light Bars 900mm at 50cms Thanks guys
Leaves. Edges burnt
5y ago
3
Solved
MagicChelseaCrew
Lower Leaves turning brown
Is this a nutrient deficiency? It's only on the lower leaves of both plants.
Week 2
Leaves. Color - Dark-brown
4y ago
1
2
Solved
Cannabis_carlitos
Cal-mag issue that won't go away
I keep getting a cal-mag deficiency. I have been using 1ml per liter of water - 4ml roughly per gallon. It is only 1 plant, the same which has had the same cal-mag issue since early veg. I include cal-mag every watering and nutrient feed day. You can see images for reference
Week 9
Leaves. Color - Dark-brown
3y ago
2
3
Solved
HuskyHouse
Is this a phosphorus deficiency?
Phosphorus deficiency? Looks closest to a phosphorus deficiency on my chart, any better ideas and or recommendations? Current light brightness is 50 percent, running a spider farmer g3000 and Most of the leaves are pointing up.
Week 3
Leaves. Color - Dark-brown
3mo ago
4
Solved
CuzICann_abis
On Week 11 Day 74, I've been noticing the leaves turning yellow. I'm assuming because we're getting close to harvest, but after reading more about nutrient deficiencies I'm wondering if I should be doing something about it. I started flushing a 1.5 weeks ago.
Week 11
Leaves. Color - Yellow
5y ago
4
4
Solved
renbuds
Sligthtly Yellow Leaves
I'm growing 2 Mephisto Canna Cheese seeds. Canna #1 is looking very healthy and green. Canna #2 is healthy (ish) but its branches are more spread out and the leaves are a bit yellow green. I'm trying to figure out if I have a problem with Canna #2 before it gets worse.
Week 3
Leaves. Color - Yellow
1y ago
1
8
Solved
xL1911
Hı whats is my problem cal mag, potassium , light burn ?
Week 4
Leaves. Edges burnt
7y ago
4
1
Solved
TinyTenter
I'm on Day 80 now, like 6 to 8 weeks flower. Is this yellowing with spots normal or something I need to fix? What is this?
Leaves. Color - Yellow
Plant. Other
3y ago
2
3
Solved
BobRoss
Leave problems
Lowest leaves are turning slowly yellow, ph is 6.5.
Week 13
Leaves. Color - Yellow
3y ago
4
8
Solved
totemas69
Leafs dying off yellow/dark brown/ black
Leafs slowly went from yellowish to yellow green dark brown black not sure whats causing this im not measuring ph so that could be first step to solve i guess cal mag P deficiancy????? definitely had some light burn as MH fce 3000 goes to max when its on 80prc lesson learned
Leaves. Color - Yellow
Leaves. Color - Black or grey
Plant. Stem - Red or purple
3y ago
2
4
Solved
CreamOfTheCrop
Brown/Grey spots on the leaves
Hey, 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 that
Week 11
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
5y ago
1
1
Solved
thenewdude
my biggest-plant is going yellow in the center, is that a deficiency or normal? I was going to give it the first feed of fish mix tomorrow with 125 ml of water
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
2
3
Solved
Cs2810
Hilfe.. calmag Mangel?
Hey grower, kann jemand Helfen? Seit 10 Tagen Blütephase. Neue Triebe werden sehr hell. Eventuell Calmag?
Leaves. Color - Yellow
1y ago
1
Solved
Pucanz
Yeallow stripes 3rd week of flower
The plants begin to show signs of lack of some nutrient, and I can't identify what it will be ... the leaves are gradually starting to turn yellow ... will it be lack of cal-mag? Or other nutrient? Can anyone help me? Please!!
Week 9
Leaves. Color - Yellow
5y ago
1
4
Solved
TeesTrees
Shall i cut the bottom leaves and stem?
Ive noticed today that the bottom leaves started to wilt and look kinda dead. Shall i cut them off at the stem and allow the rest of the plant to grow. I dont refer to colour much as im colourblind but i can see there lighter, very light green or yellow.
Leaves. Wilting
Leaves. Color - Yellow
3y ago
5
5
Solved
RandoMan
Nutrition
I was at 800ppm going into flowering and was suffering from a cal mag deficiency. I addded c/m my ppm was up to 1500. Does this sound right? I am doing flood and drain hydroponics. Plant is 2 weeks into flower. What should my ppm be for 3 part nutrient general hydroponics plus CM
Leaves. Color - Dark-brown
2y ago
1
1
Solved
Greenhorn101
Nitrogen burn?
A bit of delay getting the diary going! Started LST this week an give it some fertilizer after. Seems like it might have got a bit of nitrogen burn on some leaves? Might go back to the water!
Week 3
Leaves. Color - Dark-brown
5y ago
1
1
Solved
DTaro
pH
DWC grow. 1. pH dropping 6 to 5.3 in a day, changed new nutes still happening 700ppm/ec 1.4 staying same no change. 2. Roots doesn't stink or smell, my roots has always look like that using biodiesel and seaweed 3. Distinct brown spot on leaves Please advise.
Leaves. Color - Dark-brown
Roots. Color - Brown
Feeding. Other
5y ago
5
3
Solved
GardeningWithBo
Is this normal new leaf color growth?
It seems again that my leaves are a touch shiny, slightly curled down, and are a touch yellow. I water only 1 Liter every two days and do not use any fertilizer apart from coffee grounds and aquarium water which has slight minerals. Thanks for the help in advance
Week 6
Leaves. Curl down
Leaves. Color - Yellow
6y ago
2
2