The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Calcium deficiency?
TheGourmetWeed
started grow question 5y ago
I've been using calmag on the grow, so it shouldn't be that. Any ideas?
Open
Leaves. Color - Mottling
likes
Answer
The8thChevron
answered grow question 5y ago
As always, check your pH levels before trying to fix any nute issues 👌
likes
Complain
The8thChevron
answered grow question 5y ago
What stage are your plants in? If in mid to late flower, I would say you're using too many bloom nutes and locking out calcium that way. Seems to be a common problem.
likes
Complain
Similar Grow Questions
Solved
Canuck054
Identify the issue...and how do I correct it
What is going on with this plant... Same nutrients, same watering, same pH for all plants. One on right is fine...left one is showing issues with dry crispy tips
Week 5
Leaves. Color - Mottling
5y ago
1
2
Solved
HomeGrown33
Brown Spots on Leaves
I’m noticing some light brown spots on my leaves. After researching it seems that it was either 1) Manganese deficiency 2) calcium deficiency or 3) overwatering. I don’t think I’m overwatering. It could be the nutrients but would like input!
Leaves. Color - Dark-brown
Leaves. Color - Mottling
2y ago
5
3
Solved
TheGourmetWeed
Calcium deficiency?
So, 2 out of 6 are showing this, it looks like a nutrient deficiency, Calcium I'd say. It's only present in one leaf on each plant, in the bottom. I've got here CalMag ready to apply, just wondering if you guys agree with me :D Thank you, and keep it green :D
Week 2
Leaves. Color - Mottling
Setup. Strain - Autoflowering
5y ago
5
5
Solved
Mr_Prawn
Novato con manchas en hojas DWC
En cuarta semana de floración empezaron a salir manchas a las plantas, es cultivo DWC, no se si es problema de deficit o exceso de Calmag u otra cosa, soy un poco novato. Alguien me puede ayudar a identificar el problema? Ph aprox 6 abonos GHE tripart. Muchas gracias
Week 8
Leaves. Color - Mottling
5y ago
4
1
Solved
Chemdawg1
Browning/White Spots on leaves
In need of assistance. I’m about 2 weeks into flowering stage on an outdoor grow and decided to give plants some bone meal. I’m growing in organic soil and use fox farm trio for nutrients. used bigbloom/tigerbloom mix (3:2) in 5gal drum 3 days ago and fed bonemeal 1 day ago.
Buds. Not fattening
Leaves. Tips - Burnt
Leaves. Color - Mottling
5y ago
3
2
Solved
Organicweed
Can i please get some input from my fellow growers.
Hello my fellow growers. i woke up today and went to see my lady's (4 x critical orange punch autoflower). and i saw a problem with my leaves, they are looking sick. i hope someone can help me with this issue cause i dont want to lose my beatifull lady's.
Leaves. Color - Mottling
3y ago
11
5
Solved
Gangaman84
Does 2nd pic look like it’s going better than 1st i had massive insect problems due to location but I made a my special formula and to me looking better
Week 5
Leaves. Color - Mottling
5y ago
1
Solved
Dgessy
tâche feuille
Bonjour, je suis pas certain du soucis de la plante ? Une idée ?
Week 5
Leaves. Color - Mottling
3y ago
2
3
Solved
Max1973
Got afew spots on some lower leaves, in pictures, anyone with experience know what it is ? i think it might be neut deficiency ?
Week 5
Leaves. Color - Mottling
7y ago
2
2
Solved
evoly
stained leaf
what does it means this stained leaf? what is the problem?
Leaves. Color - Mottling
6y ago
1
Solved
Cedji_Grows
Hey guys I'm puzzled i took one picture of a leave from my Royal Ak 47 Auto. As you can see this is not a nice green healthy leaf (many others are like this). What's the issue? Is it worth treatinbg this late in the growing stage? Love to hear your opinion :). Cedji
Week 9
Leaves. Color - Mottling
6y ago
1
2
Solved
CannaTrope
Hello, I just noticed that some of my leaves are starting to have slight discoloration and some holes. See images in week 6. I don't see evidence of bugs or mildew and my fan may have been too close for the leaf with holes. I feed once a week and have switched to a high K feed.
Week 6
Leaves. Color - Mottling
7y ago
1
1
Solved
SmokeableHobby
Does this look like a calcium deficiency?
Seeing yellowing/browning on the fan leaves for my bonsais. Is this a calcium deficiency?
Week 4
Leaves. Color - Yellow
Leaves. Color - Mottling
5y ago
3
4
Solved
RamboGringo
Discoloration and slight mutation
My seedling has discoloration and slight mutation. I Need help. Not using any nutes yet, using distilled ph’d @6.5, grow light is about 36 inches away. I checked for bugs, and didn’t find anything
Leaves. Color - Mottling
5y ago
2
1
Solved
Satori_Hanso
I need some help identifying occurring problem on leaves. It only affected one plant. Other one is fine. They are fed the same amount of nuts. I found gnats flying around and I used neem oil on top soil and leaves. Please HELP ! 😱 😖
Week 8
Leaves. Color - Mottling
7y ago
1
Solved
Chucky324
Hello. When I watered 3 days ago, I saw some brown spots on the lower leaves and thought I had got some nutrient solution on the leaves but now it's on the next set too. Any idea what is going on? All 3 plants are being treated the same. Thanks Chuck.
Week 3
Leaves. Color - Mottling
3y ago
4
Solved
MicroPlant
Brown dots
White Widow Auto RQS 9 weeks old Third grow. My plant started making brown spots one week ago. Today, the problem continues. I feed my plant with Pelargon Terra Bloom, sometimes add Pelargon PK13-14. I don't control ph level, but previous two plants don't have this problem.
Leaves. Color - Mottling
5y ago
1
3
Solved
BudmanFlyingjoint
what's going on? First photo was on 21/3/2024, 2nd on 25/3/2024, 3rd on 26/3/2024 Leaf kind of necrosis. New sprouts under fan leafs show green and yellow both bright.
Leaves. Color - Pale
Leaves. Color - Dark-purple
Leaves. Color - Mottling
2y ago
2
Solved
daveHH
Dark spots on leaves
One of my girls got dark spots on her leaves. Is she ill, or is it too hot, or is the humidity too high? I gave them every second watering all those fertilizers 1ml/L. Could someone help please? I cant reduce the temp without this small climatizer (which is filled water) see pic
Week 9
Leaves. Color - Mottling
4y ago
3
3
Solved
The_Northern_Skunk
leaves curling/patchy leaves
having issues with these two ladies, ones leaving a curling I think I might have to make the feeding more frequent for her, and the other girls got light patches on some of here leaves, thanks in advance for any replies 💚
Leaves. Curl down
Leaves. Color - Pale
Leaves. Color - Mottling
5y ago
2
2