The Grow Awards 2026 🏆 
What kind of deficiency is that?
JerkFlowersanswered grow question 4y ago
Nitrogen. Because it is a mobile nutrient, plants can borrow their own nitrogen stores out of their older leaves to make up for the deficiency, which is why the older leaves curl up more and are more yellow.
likes
Complain
Similar Grow Questions
Solved
Eroben
Spotting/bleached spots on leavesOne of my plants has some light green spotting on the leaves but other than that seems perfectly healthy. I don't think I need to be worried about it but I'm curious if anyone knows what it might be? (just a mutation?) My camera isn't the greatest but it is visible in my picture.Week 4
Leaves. Other
4y ago
3
4
Solved
Akapibara
Steins on leavesWhat about these stains? Im a little worried about they :/Week 7
Leaves. Other
6y ago
1
4
Solved
sbrosgrow
Do these leaves look okay on my Auto NL plant?Can someone please look at my Auto NL, and tell me if the leaves are looking discolored or if something else is going on? It's probably nothing but I feel like a concerned parent lol. We had given it maybe 1 tsp of voodoo juice in the soils pre-soak session before germination.Week 2
Leaves. Other
5y ago
1
1
Solved
Bdawg
Got to ba cal mag definecy?My leaves are like one in pic
Reason I'm asking is after researching says its rare it happens when growin in soil.
I'm growin in bat mix states in bag theres cal and mag in the soil.2:1
If there's calmag in soil already shal I flush and add more calmag?Leaves. Other
6y ago
1
6
Solved
beginnergrower
need help with GG. she is looking yellow with slow growth and dying tips. runoff ppm is 1050 and ph is 5.6. its a little low. Just fed at 5.8 850ppm. Anybody got any idea whats going on? shes been fine with 1000 runoff. did I feed too much or too little and what does she need? Week 5
Leaves. Other
7y ago
3
2
Solved
klaus420
brown leaf tips and spots, 8 day old autoflower growing with canna.some of the leaves have started to go brown at the ends and have brown spots on them, temp, humidity and air flow are all good. Following the feeding schedule correctly. anyone have any ideas? thanks.Leaves. Edges burnt
Leaves. Other
6y ago
2
2
Solved
SirBud
Leaves looking droopy.The leaves turned droopy when I visited the tent today. Could it be underwatering? Currently, I am watering every 48 hours 1L water until I get a slight runoff. After 2 days the soil is pretty much dried out as I got told that should be done with BioBizz nutrients.Week 5
Leaves. Other
3y ago
1
2
Solved
Merulix
Are CBD-Strains less nutrient-hungry?Hey Guys, i experienced that these strains like a lower EC/TDS. Every time i went over 1.2 EC (600ppm TDS) they showed signs of over-nutrition, like very dark green leaves and reddish brown leavetips. What are your thoughts on this? Are CBD-Strains less hungry on nutrients?Week 13
Leaves. Other
1y ago
1
Solved
Osrsbuddy
Too late to trim leaves leaves on auto?I’ve heard it can be bad for the plant to trim leaves on an autoflower. I’m about half way into week 11, plant looks healthy and buds are nice but I have a bunch of leaves under the main canopy not getting much light. Is it ok to remove them?Leaves. Other
4y ago
11
7
Solved
torresgrow
Bad appearancethe leaves seem a little clear, strange, I don't know if because they are new, but before they look darker, the amount of nutrients seemed good to me before, but I increased the N to see if that corrects it, I would like more accurate views. I have another genetic using the sameLeaves. Other
3y ago
7
Solved
hweixd
Big difference in first true leaves' sizeBig difference in first true leaves' size
Its almost day 5 after emergence. Is this normal? Should I be concerned?
ALSO: It's still a seedling but, I maybe think the cup in which i'm growing it in is too small, or rather I put too little soil (9cm diameter , 4cm tall dirt).Leaves. Other
2y ago
2
1