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Back to Grow Questions
Calcium Issue?
BeachGanja
started grow question 6y ago
Hey everyone, got some limited leaf issues on the older growth. Appears to be a calcium deficiency, but would like your thoughts. 😎
Solved
Week 5
Leaves. Color · Dark-brown
likes
Esoteric_growing
answered grow question 6y ago
Yeah agreed it looks like a calcium issue, also double check your ph as the light makes it hard to tell if it’s calcium or ph spotting.
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Selected By The Grower
BeachGanja
answered grow question 6y ago
Added .5 tsp of CalMag - Bloom City on 11and 14 Jan - Removed 6 fan leaves, do not see any new leaves with spots.
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Roberts
answered grow question 6y ago
Check run off ph. I had same issue and was ph bottoming out in soil due to lack of proper run off. Not lack of proper nutrition . Good luck and happy growing 🌲🌲🌲👊
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Similar Grow Questions
Solved
ssfm_ssfm
Are those nutrient defficiencies? Which ones?
A plant had interveinal chlorosis on new leaves and then proceeded to show brown patches between veins on middle leaves. Another has coppery brown spots on leaf edges on the middle of the plant. Both were rootbound in living soil (peat/perlite/hummus + ammendments).
Leaves. Color · Dark-brown
Feeding. Deficiencies
Techniques. Topping
2y ago
1
Solved
livetogrowgrowtolive
What kind of deficiency is that? pls help
Week 5
Leaves. Color · Dark-brown
6y ago
2
2
Solved
bubby
Hello guys... In second weak, on the first two leaves appear brawn spots, other leaves aren't affected, also other leaves are looking down.. .what is reason .. help me :) P.S sorry for my bad English ... Thank you.
Week 2
Leaves. Color · Dark-brown
7y ago
1
3
Solved
Freedonia
Day 14. Since day 12 a brown spot has appeared on one of the leaves of the first node, spreading little by little. Because of the symptoms, I think it's septoria, so I've sprayed neem oil to see how it works for her. Someone knows what can it be?
Week 2
Leaves. Color · Dark-brown
8y ago
5
4
Solved
Bingeling
Brown patches on Leaves
Brown patches starting to appear again on fan leaves. Im using ph'ed water and have begun giving her nutes since last i saw the problem about a week ago. The problem seemed to go away, but has now returned og the newer leaves. Any ideas? Lower leaf pic is the old damage.
Week 3
Leaves. Color · Dark-brown
Leaves. Color · Mottling
4y ago
3
5
Solved
Mekster
Leaves showing issues. Can I still flip to flower?
Week 5ish in veg. I was planning to flip on Saturday. I’ve had issues the entire grow. Supplemental cal mag feeding have helped.
Week 5
Leaves. Color · Yellow
Leaves. Color · Dark-brown
2y ago
2
3
Solved
hanniversary
Brown tips curled up
So my plants are in a glass greenhouse that can get very hot on a sunny day but its not always scorching. one out of two plants has brown tips curled up on the all the leaves. Should I be worried about this? Thanks very much !
Week 7
Leaves. Color · Dark-brown
6y ago
2
2
Solved
Jo3108
Are there any reasons to worry about these spots? And somehow on these two side leaves, the tips have darkened?
Leaves. Edges burnt
Leaves. Color · Dark-brown
4y ago
1
4
Solved
greenthumbartisan
Look like Zinc and Calcium deficiency? Watering with 5.8/5.9pH, 2.06 EC (Runoff 5.8pH, 0.78 EC) Few leaves had small nutrient burn on the tips earlier this week. Nutrient burn appears to have tapered off.
Week 6
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
2
5
Solved
SLuGGeRNauT_420
Wtf
Wtf is this just switched to remo nutes not overwatering only feed every 2 or 3 days when the medium is not damp
Leaves. Curl down
Leaves. Twisted
Leaves. Color · Dark-brown
5y ago
1
3
Solved
Bembeto
Carencia de Mg
Flag-shaped leaves with yellow spots, no doubt a deficiency of Mg. The problem is that I don't know what causes it. I will do a soil acidity test to be sure, but I'm leaving the thread open for more experienced growers in case they could lend me a hand with this.
Week 9
Leaves. Color · Dark-brown
5y ago
4
5
Solved
MrGrowthSpurt
Please Help me Help a Friend.
So a buddy of mine is growing outdoors, I'm growing indoors, we both are newbs, one of her plants is yellowing and decaying badly and she said she feeds 1 to 2 times a week rain water with no nutes and she doesn't ph the water. What could be the issue?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
4
4
Solved
telez00m
Curled leaves and brown spots
Please help! My Acapulco Gold suddenly showed leaf symptoms today. Shouldnt be a lock out, I always water with drain and use lower doses than the BioBizz chart recommends. Used Molasses two days ago, could that be the cause? Its the only plant that shows this signs.
Week 9
Leaves. Curl up
Leaves. Curl down
Leaves. Color · Dark-brown
2y ago
1
Solved
Cannapprentice
Burned upper leaf edges
Hi! Dark spots appeared on some upper leaves overnight. I don't think this is the cause, but I did a pretty heavy defoliation the day before. the spots only affects leaf margins and makes the tips curl up. The spots are brown, burned and slightly purplish. what could this be?
Week 5
Leaves. Color · Dark-brown
6y ago
2
Solved
ThcSrb
Spots on leaves and little twisted...
Spots started slowly showing when it had a different 600w light, too much heat back then, this started a little "save operation" changed light, made the plants look a bit healthier but now it looks like the spots have spread and also affected the leaves above... Are they healthy?
Week 3
Leaves. Twisted
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
5
Solved
elevensixty6
Spotting issue consistent in all my grows. Have always thought Cal deficient but more Cal never fixes the issue. PH always checked with 2 PH pens 6.2-6.8.
Always pops up around the same time in flower.. week 4/5. Brown irregular spots and occasional curling down on the fan leaves. The only things I have consistently used in all the grows is the LED light, RO water, and CALiMAGic. Switched to dry organics but now its back. N toxic?
Week 8
Leaves. Curl down
Leaves. Color · Dark-brown
Leaves. Other
4y ago
7
6
Solved
densesensi
Did I nute burn my leaves?
I fed GH flora trio yesterday - introduced the bloom None of my other 2 plants have this. The other auto is the same age and fed the same dosage. How can I fix this? Or will it recover?
Week 5
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
1
2
Solved
Manko
I only discovered this page very late and I'll just start documenting it here .. I planted the plant around mid-February
Week 7
Buds. Not fattening
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
2
2
Solved
Ricky_420
Leaf browning
What do you think is the problem/deficiency affecting my lower fan leaves?
Week 4
Leaves. Color · Dark-brown
4y ago
2
2
Solved
bekiffteridiot
Nutrient deficiency?
My plant is not doing good and I sadly don’t know what’s wrong with her. I would be very happy if someone could help me solve this. My tent is about 26-29 degrees at day and 24 at night. RH is 60%
Buds. Not fattening
Leaves. Curl down
Leaves. Color · Dark-brown
2y ago
1
1