By continuing to use the website or clicking Accept you consent to our cookies and personal data policy. For details please see Privacy Policy
Accept
What deficiency is this?
Backstabbathstarted grow question 3 years ago
Can someone tell me what this is being caused by? My suspicion is a potassium/ calcium deficiency? It's affecting mostly the larger fan leaves. Also, affected leaf stems are turning purple. Posted a pic of one of the leaves
like
GMSgrowsanswered grow question 3 years ago
Could be a potassium deficiency. Check your runoff waters ph and ec levels to know for sure. Ph out, lockout, ec to high lockout. Ph and ec both ok for flower time , then you have a deficiency.
Hempy_The_Kidanswered grow question 3 years ago
I agree with gmslave as well. Potassium deficiency due to PH fluctuations.
like
Complain
Similar Grow Questions
Solved
Growlownoknow
Should I use cal-mag?Is cal-mag necessary I’m growing indoors, using cheap leds in soil using city water I let sit a day or two before I use.Leaves. Color - Dark-brown
a month ago
1
4
Solved
IQuSX
Коричневый ствол и красные пятна Strain: NoNameОбнаружил очень странный ствол у растения, что с ним?
Был пересажен 5 недель назад из земли в кокос+перлит, при этом было удалено 80-90% предыдущей земли.
Leaves. Too few
Leaves. Color - Red or pink
Leaves. Color - Dark-brown
a month ago
1
Solved
Budz_Bunny
Brown Red Round Spots on 4-5 Fanleaves / fungus ?Hey folks, I have this issue with one of my ladies. There are small reddish-brown spots on 4-5 fan leaves, while the other plants don’t have anything. What could this be?
I think it’s a fungus, but I want to be sure and know exactly what it is before I start treating it.
Leaves. Color - Dark-brown
a month ago
4
2
Solved
Hix57
Tache cuivrés sur feuille.Je me demande si les tâches cuivrées sur les feuilles de ma plante de cannabis et d'autres plantes sont dues à une carence en calcium ou en phosphore/potassium. Les feuilles affectées sont généralement les grandes feuilles, souvent nourricières. Voir agenda.
Je vous remercie 🙏🌱
Week 5
Leaves. Color - Dark-brown
a month ago
3
3
Solved
Mekster
Day 13 since flip. Spots on leaves.Going into week three flower. What are these?
Week 7
Leaves. Color - Dark-brown
2 months ago
2
Solved
Majky1544
Deficiency? Help me...Hey guys im having a problem with my gorilla cookies auto.it's 8 weeks from seed, growing in plagron pebbles, drip system, EC now 1.8, PH 6-6.5. light viparspectra xs1500 pro, height approx 30 cm. Nutrients - advanced nutrients
Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
2 months ago
1
2
Solved
GanjaGartenZwerg
Braune Blätter in BlütePflanzen bekommen braune Blätter gedüngt wird mit BioBizz auf Erde die pflanzen standen leider ein paar Tage zu nass ich hoffe ich habe kein fusarium drinnen pflanzen sind schon seit drei Tagen nicht mehr gegossen worden und immer noch nass was kann ich ma
Leaves. Color - Dark-brown
2 months ago
1
7
Solved
ObserverInterest
What is causing this Leaf discolouration overnight after a lot of tent work yesterdaySpent a lot of time in the tent yesterday. Everything was fine and this morning there’s bad discolouration on the leaves of some plants.
I did lower the plant (was way too high) so may beight burn - but it’s only on some plants
I did make two mixes of water/nutes
Week 8
Leaves. Color - Dark-brown
2 months ago
3
2
Solved
hweixd
Day 4, after emerging. Is this coloration on the cotyledons okay?Humidity is 55 - 70, temp is around 20-24c, 50w full spec led
It's my first time, and i think i have been watering it too much
I also fed it 2-0-0 npk water with 4ml per liter and I since learned it's not okay. Will it recover? Is this too little grow for day 4?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3 months ago
4
2
Solved
Jules216
Spots on leavesAny ideas why these Brown spots appeared so quickly?
Leaves. Color - Dark-brown
2 days ago
3
Solved
IceeTea31
HelpWhat is the issue? do they need calmag or should i flush them?
if i should flush them what ph should this water have?
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
3 days ago
5
5
Solved
Babajipaz
Browning tipsHello everyone,
I'm in 3rd week of flowering and I'm starting to stop browning tips on newer leaves. Any idea what it could be?
Thanks!
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
5 days ago
2
2
Solved
Ramoset
Hello guys, what kind of problem could this planta have? These are autoflowering plants.
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
14 days ago
1
1
Solved
Lapolda
Deficit?Hello, everyone. Thanks in advance for the advice. Is this a nutrient deficiency?
Week 12
Leaves. Color - Dark-brown
2 years ago
1
Solved
AvoidantGrower
Burnt? PH lock-out? too much Cal-mag??What do you think is wrong with this plant?
All the other plants surrounding her are fine so I'm not sure what went wrong with this one. I thought it was cal-mag deficiency at first so I doubled cal-mag when feeding but it only proceeded to get worse. The buds look fine tho 👍😳
2 years ago
2
5
Solved
thebiglebowski
Bonjour à tous pouvais vous me confirmez que cela vient d'un trop d'engrais ?
Leaves. Color - Dark-brown
2 years ago
3
4