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Back to Grow Questions
Heat stress?
willisknows
started grow question 5y ago
Does this look like heat stress? It’s been in the 90’s all week.
Solved
Leaves. Curl up
likes
Aquemini
answered grow question 5y ago
Looks like it has a little heat stress, but still very healthy looking for being in high heat all week.
1 like
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Selected By The Grower
Roberts
answered grow question 5y ago
Yes light heat stress but nothing to worry about. Mother nature has always taken care of herself outside.
1 like
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Similar Grow Questions
Solved
Alejangrow
Anybody got any idea with what's going on with these 2? The 2 larger plants are showing the signs of some stress on the fan leaves. Oddly enough the runt of the 3 is not showing these signs. Has anyone seen this before or can help me identify it?
Week 15
Leaves. Curl up
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7y ago
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Jodas
Does the leaf curling mean lights are too close?
Week 2
Leaves. Curl up
8y ago
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Leaf tip edges pointing up
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TheFamilyShire
Leaves curling on sides
Okay so the leaves are acting weird and kinda curling in on the sides. Like it's heat issue. I think maybe to strong LEDs. Idk. It's only 79°f Light (ESv300) is on lowest setting @32in away. Fed GH flora trio. Only 237ppm. The leaves are also yellowing between veins.
Week 3
Leaves. Curl up
Leaves. Veins · Yellow between
4y ago
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Solved
KCduzit
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Week 14
Buds. Not fattening
Leaves. Curl up
6y ago
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Week 5
Leaves. Curl up
5y ago
1
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
2mo ago
1
Solved
Dr_Boom
Dwc clone week 1. Strange coloration.
Any idea what this is. Ph 6.2 and ppm 746. I noticed clawed dow leafs for the past couple days. 1st week clone in dwc.
Week 1
Leaves. Curl up
4y ago
2
5
Solved
Goenndalf
Rusty Leaves
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Week 8
Leaves. Curl up
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
2
2
Solved
ganzigunnu
leaves curling inwards
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Week 11
Leaves. Tips · Burnt
Leaves. Curl up
5y ago
4
4
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No_nuts
Windburn des ka?
If you can tell me if this is windburn left me know if Im being paranoid or a solution to this.
Week 1
Leaves. Curl up
7y ago
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2
Solved
UpInSmoke420
Heat stress?
What's the best temperature for autoflowers? Or I've been running mine at around 28/29c and I think she may be abit heat stressed?
Leaves. Curl up
6y ago
1
5
Solved
SierraKilo1313
Seedling curl up?
Why do the new seedlings point up to the light like this, is it a point of concern. The light is at 250 ppfd average.
Week 1
Leaves. Curl up
6mo ago
1
1
Solved
PapaBaer
Zu viel Dünger?
Habe ich zu viel Dünger verwendet oder sind die Blätter eine Nachwirkung vom Trimmen / Beschneiden hab heute mal alles was kein Licht bekommt abgemacht damit die Luft besser zirkulieren kann.
Leaves. Too many
Leaves. Curl up
Leaves. Curl down
6y ago
3
Solved
Kaya666
Any idea why my top leaves would be taco'ing at the edges? I keep my room about 72-73 degrees and am just using one CFL bulb (45w) that I keep at least 6 inches above the plant. And I keep a gentle fan or two on her most of the time to keep the air moving. Thanks.
Week 4
Leaves. Curl up
1y ago
2
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Solved
Lordcrow
Leaves pointing up
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Week 1
Leaves. Curl up
4y ago
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comet9000
Week 7 of 8 for Black Maple, leaves yellowing rapidly. Should I be concerned?
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Leaves. Curl up
Leaves. Color · Yellow
Setup. Strains · Photoperiod
4mo ago
1
3
Solved
larryargus
Leaves rippled ? What causes this?
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4y ago
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Solved
Bretwalda
Curling dark leaves
Advice for what i think is nitrogen deficiency, have flushed with ph 6.3-6.4 water about 900ml
Leaves. Curl up
5y ago
5
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Solved
BavarianBarbarian
Week 8 (4 weeks into flowering) - Possible Nitrogen / Cal-Mag issue?
Plants show signs of what i assume to be a deficiency. Stopped feeding nitrogen Week 7 according to schedule. Symptoms are not on every leaf but some the upper foliage. Yellowing, burnt tips and rusty spots. My guess is lack of Cal-Mag & Nitrogen. Is my guess correct?
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Leaves. Curl up
Leaves. Color · Yellow
2y ago
3
3