Mangel? Überdosierung? Windbrand?
KuaerSchlaegerstarted grow question 1y ago
What's wrong with the little sweet one? Unfortunately, I was unable to check for the last 2 days and I'm seeing this today. Magnesium deficiency? Windburn?
Solved
Leaves. Curl up
Leaves. Color - Pale
1 like
Purrple_Hazeanswered grow question 1y ago
Looks more like a beginning magnesium deficiency to me than windburn. The light spaces between still green leaf veins are pretty typical for that. It could be that the pH in the substrate has gone a bit out of the optimal range over the last few days, making it harder for the plant to absorb Mg – even if there's actually enough in there.
I would first check the drain pH (aim for around 6.2–6.5 for soil, 5.8–6.0 for coco). If that’s good, you can easily supplement with Cal-Mag or some Epsom salt. Just be careful not to overdo it, or you'll mess up the ratio with other nutrients. The old leaves won't recover, but the new ones should look normal again.
Happy growing 😊
Organomananswered grow question 1y ago
Yes, magnesium deficiency.
When growing in coco coir, you need to add supplemental magnesium from virtuually day one.
It is not "wind burn".
Remember too, what is showing in the leaves now, is a direct reflection of what was happening in the root zone 2 weeks ago..............in other words, this problem has been manifesting itself for some time already.
1 like
Complain
Similar Grow Questions
Solved
budda420
Whats happening?Can anybody help me please was wondering what this is on my leaves its mainly on the tip on this leaf, ive looked all over and cant find anything theres also a couple of tiny black dots aslo one of my other plants leaves are curling and browning any help would be much appreciated
Leaves. Curl up
Leaves. Color - Pale
5y ago
1
2
Solved
rockbo47
Can anyone tell we what the issue is here please?Amnesia auto, coco/perlite mix, 5 gallon fabric pot, 18-6 schedule, sf1000, Day 13, avg temp of 25°C, avg RH of 60%.
schedule - https://www.growweedeasy.com/wp-content/uploads/2014/12/coco-coir-flora-series-schedule.pdf
Temps exceeded 30°C for 5hrs today & was 29° yesterday
6y ago
1
1
Solved
EasyName
Calcium deficiency?I'm not so sure if it's calcium deficiency, what do you think?
Watering 100ml of water minimum.
Using 1ml calmag/per 1L(and other nutrients like N,P,K)..soil comes nutrient free.
Should I water her more and add more calmag or is this a different deficiency?
4y ago
3
2
Solved
Slaccio
1st Grow Autoflower ProblemsI’m having problems with my autos. They are Assorted from Budha, 2nd week as plants. They both look stressed . One looks shiny and with light stress and the other haves other sympthoms. I’m using HPS 250 and All Mix from BioBizz, no nuts. Nitrogen? Light? Water? Help!
Leaves. Curl up
Leaves. Curl down
Leaves. Color - Pale
6y ago
1
2
Solved
Pimpinsinpimpin
Deficiency/toxicity?Hi, back again 😂 so the canooing has stopped on some plants but still present in some. I've also noticed the leaves to look a little off, is this the start of something I need to fix? They look pretty healthy other than that. The photos are of different plants. Thanks in advance
3y ago
5
9
Solved
CeeJayy420
Do I have an (Mg) issue?Leaves turn light, have black spots and 1 leaf rolls in upwards. It got Epsomite with every watering so I guess it's not a deficiency. Last time there was not even a drain. So maybe nutrient absorption is blocked? Should I flush? Is it to stressfull for this autoflower?
3y ago
3
6
Solved
AlpAge_Cino
Discolored, burnt and curled up tips on higher leavesSeveral symptoms, always on tips of higher leaves : they are discolored/burnt or burnt/curled up. LED @40cm (deemed 70% of 300W) and I just gave them the 2nd flowering feeding, 4 days after first one (pots were very light). I was planing to start compost tea... What should I do ?
3y ago
3
2
Solved
Kraze
Leaf tips turning yellowish brownishHi all, I have a issue with my plant, I recently changed from soil to Coco and now I am 1 months in and my plants has all its tips brownish yellow, I suspected it was overwatering or Potassium deficiency but I Am not sure about it, anyone has an idea? Thanks
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Pale
4y ago
1
1
Solved
MindFlowers68
Curled leaf tips Nevilles HazeMy Neville's haze is starting to be hard to look at. Cant tell if Is watering issue, nute burn or excess. I thinking maybe K deficiency. Shes been drinking close to 4 gallons of water a day or more and soil dries very quick. After watering I notice the new growth looks good
2y ago
11
6
Solved
Inside_growlab
Yellow on my leavesPlease help me, this is a big bang auto from green house seeds. I only gave since week 2 bio grow and in the first week some rooting complex from hesi.
Leaves. Curl up
Leaves. Color - Pale
Leaves. Color - Mottling
6mo ago
3
2
Solved
Yeguamon
Not sure what is going on with this Fastbuds Crystal MethThe week has finished, and the plant doesn't look very healthy. Although it has been growing quickly, new and previous leaves and curling up. I am not sure what kind of deficiency or excess is this. Should I kill it and grow a new one?
5y ago
2
1
Solved
KuaerSchlaeger
Mangel? Überdosierung? Windbrand?What's wrong with the little sweet one? Unfortunately, I was unable to check for the last 2 days and I'm seeing this today. Magnesium deficiency? Windburn?
Leaves. Curl up
Leaves. Color - Pale
1y ago
1
3
Solved
kaiabel
Trouble with Calmag?Can you check my leaves and tell me what's going wrong.
Here my water values is in the last picture its german but i think you can understand it to
Leaves. Curl up
Leaves. Color - Pale
Feeding. Deficiences
4y ago
5
6
Solved
Gleneagle_87
Leaves turning pale/crispy hours after watering/feeding!Hello all,
Leaves turning pale hours after watering and feeding. Water is Volvic ph’d to 6.5 ppm 500 is 120, Ec 0.2. Put 0.05ml ph down for 4.5l. Dosnt seem as bad with Calmag at 1/4 dose. With feed connoisseur an n additives ph 6.1/6.5 ppm ~450 ec 0.8. Started 1w back.
Thank you
Leaves. Curl up
Leaves. Dropping off
Leaves. Color - Pale
1y ago
3
3
Solved
Budha420
Nute burn?Should i flush my plant? My other plant had same issue w her lover leaves but this lady got it in second leaves too😢
Leaves. Tips - Die
Leaves. Curl up
Leaves. Color - Pale
5y ago
2
3
Solved
Slaccio
1st Grow Problems (can’t solve)Okay brothers.
I’m having problems with my autos. They are Assorted from Budha, 2nd week as plants. They both look stressed or sick. I’m not sure. One looks shiny and with light stress and the other haves other sympthoms. I’m using HPS 250 and All Mix from BioBizz, no nuts.
Leaves. Curl up
Leaves. Curl down
Leaves. Color - Pale
6y ago
1
Solved
Mossbross
Why have the leaves on my plant turned pale and crispy?4 weeks into veg with auto and all of the leaves (including new growth) have turned very pale and dry, starting at the tips and receding rapidly.
I’ve used the same two part nutrient solution in the same quantities as I did with the previous same auto, so Disease maybe?
Leaves. Curl up
Leaves. Wilting
Leaves. Color - Pale
5y ago
4
4
Solved
Spiritual_Herb
I'm entering week 7, what's happening?I'm entering week 7 from germination. I'm using a soil for herbs/lawns (pH 8) as an amendment—not ideal for cannabis. I'm testing it, but leaves look like this. I fertilize and already flushed. Using 1ml grow + 1.6ml bloom Biobizz in 500ml water (pot is 3.2L).
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Pale
1y ago
1
4
Solved
Dragosani666
Top leaves turn dark and curl - What can I do?I've had Nitrogen and possible Cal/Mag deficiencies 2 weeks ago.
Mid last week I started noticing some burn a the tips, so i dialed nutrients back again.
By this weekend the tips of the leaves curled further and turned dark.
The rest still looks a bit pale, but buds look good.
2y ago
4
3