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Back to Grow Questions
Curling dark leaves
Bretwalda
started grow question 5y ago
Advice for what i think is nitrogen deficiency, have flushed with ph 6.3-6.4 water about 900ml
Solved
Leaves. Curl up
1 like
Hazemaster420
answered grow question 5y ago
She’s fine, let her dry out a bit! Also add some Magnesium sulphate to straighten her out! Cal mag her up! Mainly Magnesium though!
1 like
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Selected By The Grower
GrowersParadise
answered grow question 5y ago
to me looks like plenty of Nitrogen, possibly over watering? how often are you watering?
1 like
Complain
Bretwalda
answered grow question 5y ago
@hazemaster420
, is cal mag and magnesium sulphate same thing or give both?
likes
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Roberts
answered grow question 5y ago
Nitrogen toxicity is issue
2 likes
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Hazemaster420
answered grow question 5y ago
Theirs plenty of nitrogen though, see how the leaves are slightly turning? This is a sign of too much Nitrates/nitrogen!
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Similar Grow Questions
Solved
Muthaofdragonflies
Leave issue
What is this? Nutrient burn, deficiency, fungus? I tried to look up the answer but it might be different things on different plants. Please help me diagnosis this. The white powder is DE and the small holes are from flea Beatles. But I’m more concerned about the browning.
Week 3
Leaves. Curl up
6y ago
2
2
Solved
elevensixty6
Calcium "deficiency" at 8ml/RO gal and still no improvements in weeks.. now my other tent has started the same spots.
Cal excess or Mag problem? My Blueberry and Wedding Cake Autos are now spotting in new and old growth. Even at 8ml/gal CALiMAGic for a couple weeks no improvements. feeding nutes with two days of just calmagic RO water in between with runoff about 0.5 gal daily in FFOF soil
Week 7
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color · Dark-brown
5y ago
4
6
Solved
Manijuana
Any ideas on what's causing my baby to yellow at the top? I think too much heat personally as ive been at a temp of 81. Root system is doing great! Any thoughts are welcome!
Leaves. Tips · Die
Leaves. Curl up
Leaves. Color · Yellow
5y ago
3
2
Solved
Cannabar
Curling/hook shaped leaves.
Does anybody know what's going on with these leaves that are folding inwards and curling into a hook shape! Any solutions?
Week 10
Leaves. Curl up
6y ago
1
3
Solved
Wexlo
Spots on leaves
Strain-dancehall 6 weeks old No Nutrients Ph 6.2-6.4 3 liters every other day New to growing. Out of 3 plants 2 are starting to get spots on leaves near the top. All 3 have discolored leaves at the bottom. Pics are numbered. If anymore info needed just ask
Leaves. Tips · Burnt
Leaves. Curl up
Leaves. Color · Dark-brown
5y ago
1
5
Solved
Goyard1
Leafs curling and plant health
I have reached my second week of veg the plants look somewhat healthy but I do have a concerns like the leafs curling up and one of the plants leaning a little I would appreciate some feedback
Leaves. Curl up
5y ago
2
2
Solved
Bananawoman
Banana krumble advice
Need help people I’m abit unsure on what’s happening with a few of my banana krumble plants at 4 weeks old. Growing in coco, lights on 18/6
Leaves. Curl up
6y ago
4
Solved
Mikewithgreenthumbs420
What’s going on have 3 weeks left but this clone matures really quick almost no more white hairs
Have 3 weeks left or so till harvest but the bottom leaves keep dying more every other day any taughts about harvesting soon Here are some pictures of what’s happening to this or is this normal since it’s almost done
Leaves. Curl up
Leaves. Dropping off
Other. General questions
6y ago
2
Solved
getsomeUbik
Leaves curling up and Tips drying out (Day38)
Not sure whats going on? Heat stress, Thrip related, too little nutes or water? Noticed a slight curling yesterday and guessed on thirst since watering was delayed and then gave just half dose. Also heatwave going on right now. Nutes are at very low levels..
Week 5
Leaves. Curl up
6y ago
1
3
Solved
Smokey89
Fan leaves curling up
I noticed my fan leaves starting to curl inwards can anyone advise on what it could be and how to fix
Leaves. Curl up
6y ago
7
Solved
tripa_grower
Hi guys, I’ve noticed the leaves of 2 plants are curl upwards. I think overwatered, Day 9 I’ve watered two times (wrong) and after checking Day 8 too. At day 10 I've didnt watered, and today I've seen the soil dry, so I putted 100ml water. What do you think is causing this curl?
Week 2
Leaves. Curl up
7y ago
4
3
Solved
floridaboy
Cupping
On the right plant in diary pic it shows slight upward cupping on the edges of a few leaves. There are a couple of others on the other side. But 95% of the leaves are fine. During my first try at LST I broke the main stem by 70%. I think this caused the cupping?
Week 4
Leaves. Curl up
2y ago
6
2
Solved
Lloyd_Jones
Nute Burn? Or something else?
I'm seeing a lot of yellowing and dead/curling leaves on my girls. I thought it was nute burn so my last 3 waterings were nute-free, CalMag Only and pH'd. It seems to be getting worse. Could this be something else? Any advice is greatly appreciated
Leaves. Curl up
Leaves. Color · Yellow
6y ago
3
Solved
Thirsty_Grower
Is there enough light?
If the upper leaves start to curl upward slightly into a “taco” shape, does that mean the light level is already at the upper limit and I definitely shouldn’t increase it?
Week 12
Leaves. Curl up
1mo ago
1
Solved
Pdoublea
Blätter rollen sich nach oben
The edges of the leaves are curling up. I suspect the light is too strong. I've now turned the light back down to 40%. The PPFD value is now back to 150; it was almost 250 at 50%.
Week 1
Leaves. Curl up
1y ago
18
9
Solved
EthosMultipassMemberRovairok
Wind burn??
What else can cause the leaves to taco a bit like. Light burn. Just a couple here and there?? Could it be. Wind I've noticed I had a couple leaves claw a bit but only a couple there too and only on the leaves that was moving the most. ?
Week 6
Leaves. Curl up
Leaves. Curl down
6y ago
3
2
Solved
WeedDude
lightstress, lockout, nuteburn, nute deficit, age, genetics, ...?
lightstress, lockout, nuteburn, nute deficit, age, genetics, ...? place your bets ladies and gentlemen would love to hear your opinion. details in diary week 15 and comment DAY 109 - DAY 61 Flowering Thank you very much 😀
Week 15
Leaves. Tips · Burnt
Leaves. Curl up
Leaves. Color · Yellow
4y ago
3
3
Solved
RomeoAlphaWhiskey
leaf tips bronzing all over
this is looking to me as P toxicity, what do you reckon? dasboof get in here again.
Leaves. Tips · Burnt
Leaves. Curl up
5y ago
2
2
Solved
Little_Pot
Droopy leaves, some leaves yellow with brown spots
She has droopy leaves. There are leaves with brown places, and some leaves in the middle of canopy turned yellow. At last she started preflower in week 8(auto) but compared to another girls she is very slow with pistils. Some leaves are curling up.Maybe too much light?
Week 8
Leaves. Curl up
Leaves. Dropping off
Leaves. Color · Yellow
4y ago
3
5
Solved
Downyowo
Seedling need more light?
Leaves. Curl up
1y ago
9
7