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Back to Grow Questions
Is this a calcium difficiency?
Nonsmoker426
started grow question 6y ago
I water the plants with distilled water, ph'd at 6.2 and I add 1/2 tsp per gal of calimagic. This is happening on one old growth leaf on 2 plants.
Solved
Week 6
Leaves. Color - Yellow
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Mr_Weeds_Autos
answered grow question 6y ago
From the looks of it, it looks like a leaf dying from not getting enough light which is completely normal. Hopefully, I answered your question and remember " Happy Growing".
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Selected By The Grower
Similar Grow Questions
Solved
Pjm70
Yellow lower leaves
Lower leaves are turning yellow. She just started her second week in flower. My first thought is I'm not feeding enough. She is short, but still a lot of plant here. Here upper leaves are a nice shade of green. She prays all day long. Is this a problem.
Leaves. Color - Yellow
4y ago
2
4
Solved
mcflow
Are these leaves turning yellow is normal in this phase of the plant? Or is it nutrition malfunction? Ive watered enough and i most likely didnt overdose on fertilizer because im keeping to the scheme and using organic(biobizz). Im thankful for your answers
Leaves. Color - Yellow
4y ago
7
4
Solved
Morpheus
I have uploaded a few more pictures - getting worries as the yellowing is continuing. Any ideas? pH was 5.6 on Saturday when I first mixed the nutes), and then with the air stone has come up to 6.5 or so. I've added a small amount of pH down to temper this back down.
Week 7
Leaves. Color - Yellow
7y ago
1
2
Solved
Doudou3D
What is nescessary to change ? More water ? Nutriments ?
My Leaves have yellow spot and little bien spot on other plant, in the lady days the weather is to hot, 37degree Celsius. What Do you thinks it's nessecary to change ?
Leaves. Color - Yellow
6y ago
2
Solved
known2funk
We've had some really warm weather the past few days. This morning, just before the lights switched off, i saw it was 31.1 degrees C in the grow tent. Are the yellowing leaves a concern? The yellowest leaves are really brittle. I don't believe they're under-waterd.
Week 13
Leaves. Color - Yellow
4y ago
2
2
Solved
jokgga
Is it normal to see so many leaves dying incthe middle of flowering period?
I am seeing so many of my leaves curling / dying.... I know these leaves will all get yellow towards the end of flowering but should my plants look like this at Week 9?
Week 9
Leaves. Curl up
Leaves. Dropping off
Leaves. Color - Yellow
6y ago
5
6
Solved
AliceTheMan
Too much fertilizer?
High, i´m a little unhappy about the yellow Leafs. It´s week 5 of Flower, 20 Liter Shoes (Plagron Terra Light Mix), 2,5 Liter Water all three Days with Plagron Terra Bloom 4ml, Sugar Royal and Green Sensation 2,5 ml (like Shedule), Ph 6,2-6,5. What can i do?
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
1
1
Solved
N_e_O
Feed? more water?
Should i start feeding? getting worse every hour and does not seem growing any more not
Leaves. Color - Yellow
5y ago
3
3
Solved
Darth_Cannabis
Critical Purple: Leaves slightly yellow.
Just started my first grow. I1 placed the light high in the tent and the leaves slightly turned yellow. I lowered it yesterday to 18” over the top on the plants. Just wondering if I am on the right track to solve the issue. The plants are still growing. Minimal nutrients 1ml/gal.
Week 1
Leaves. Color - Yellow
3y ago
9
5
Solved
LAShugars
What is happening?
Any idea what this is? Leafs are light pale green. Yellowing some with little brown spots. Started last week. Been looking up different deficiencies but not sure. please help.
Leaves. Curl down
Leaves. Color - Yellow
4y ago
5
5
Solved
Carlotta
dead leaves
i'm entering 3rd flowering week. I can see some of the old leaves at the bottom becoming yellow,and a few just pulled off easily. Is this normal? or is that a a problem coming from below?
Leaves. Color - Yellow
6y ago
3
6
Solved
GronkLeague
First grow yellowing seedlings :( nute problem?
I seem to be following all the instructions on grow temperature range, light distance, and watering schedule(only watering hen the medium is drying); I've hardly used any nutes until day 22 as advised and I personally think this has caused me some issues although I may be wrong.
Leaves. Veins - yellow between
Leaves. Color - Yellow
Leaves. Color - Pale
6y ago
3
4
Solved
Spiral
Fast yellowing in older and middle leaves, small buds.
Hi guys, I need your help on this one, this is a completely organic grow under a FC-6500 light which is 60cm at 100% power, it can't be light stress because the tops are fine.This yellowing happened fast in the span of 4 days.PH shouldn't be an issue since I calibrate regurarly.
Buds. Not fattening
Leaves. Veins - stay green
Leaves. Color - Yellow
2y ago
2
1
Solved
SweetJB
I've been seeing old fan leaves and the bottom canopy turn yellow. And the Pineapple Express is not looking as Green as the other.
Hello! I've been noticing the blue dream fan leaves are tuning yellow. Also some new leaves hace a lighter green on the Edge of the leaves. Also the Pineapple Express is showing a pale green if you compare them. pH is 6, and I last watered with a quarter of what canna recommends
Week 6
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
2
2
Solved
La0laEsMia
Help determine why plants are yellowing
I've noticed my plant is turning yellow, starting from new fresh growth (old growth is not affected). I am seeing early stages on my other plants now. My PH runoff yesterday was 6.7. They are getting nutes. filtered water. light 65% 14 inches. Added Cal Mag last week, not helping
Week 9
Leaves. Color - Yellow
5y ago
2
2
Solved
Starplatinumsrealdad
Yellowing and Reddening of older fan leaves
I’m experiencing a lot of yellowing that progresses into dark red blotches. I suspected a possible cal mag deficiency but after upping the dose multiple times I’m still having issues. Any recommendations on possible causes/treatments? Temp stays between 74-76, humidity around 60%
Week 6
Leaves. Color - Yellow
Leaves. Color - Red or pink
3y ago
5
3
Solved
Patagoniaweed
Magnesium - Nutrient problem
Do I have Magnesium deficits or any other problem? I started to notice during the last week and it is progressing quickly. The last weeks, pH of drain water was low (between 5,5 and 5,8) but I could increase it until 6.1. Has anyone the same problem? Thanks!
Leaves. Veins - yellow between
Leaves. Color - Yellow
Feeding. Deficiences
4y ago
9
6
Solved
Gonach
Hojas Amarillentas - Lemon King - 4-5 Semana vegetación
My plants are turning yellow. I'm just days away from switching to the 12/12 cycle since I foliar-fed with Big One. If it's a nitrogen deficiency, how could I resolve the lack? Thank you very much for your valuable comments.
Leaves. Color - Yellow
5y ago
1
5
Solved
Finedakine
Yellow leaves with brown patches between veins.
Any ideas on what this could be? I checked the PH and it is right around 6.5. I did feed them twice last week as I was out of town over the weekend. When I got back the temp in the tent was °91. It's bad on one plant and starting on another. The rest look healthy.
Leaves. Color - Yellow
5y ago
4
4
Solved
SirTucksAlot
Hey guys got some discolouration on the leaves! Can’t tell what it is! Cheers
Week 5
Leaves. Veins - yellow between
Leaves. Color - Yellow
6y ago
3
3