The Grow Awards 2026 🏆

Back to Grow Questions

Need knowledge guys and gals?!

MotherEarthGTstarted grow question 4y ago

Need knowledge guys and gals?!

MotherEarthGT

MotherEarthGT

MotherEarthGT

MotherEarthGT

MotherEarthGT

Open

Leaves. Curl up

Leaves. Color - Dark-brown

likes

Answer

MotherEarthGTanswered grow question 4y ago

Im using 5ml CalMag per gallon. What do you think I should up it to?

likes

Complain

Hazemaster420answered grow question 4y ago

Could be nutrient burn as well! Cut back just a touch!

1 like

Complain

ChitownCannaChicaanswered grow question 4y ago

Hi there—- looks like you can use some cal-mag to help with the nutrient uptake. Everything visible is always 2 weeks late. Up the cal-mag, wait a bit and see if new growth is looking good. ✌️🏻💚🌿💨

2 likes

Complain

bruxupanswered grow question 4y ago

Calcium deficieny usually gives leaves that rust-looking color, and signs of Magnesium deficieny show fading and lighter colors on leaves sides and edges. I have had this problem with younger plants before I start fertilizing. Adding Cal-Mag has solved this issue for me. Water with some, or introduce it into your nutirent mixture. Hope this helps. Cheers!

2 likes

Complain

Ezzjaybruhanswered grow question 4y ago

Diary and previous weeks growth is super helpful for diagnosing this stuff.. From this I’d say Magnesium issue, one of the pics looks like some calcium deficiency too. I’d be giving her some Epsom salts or cal-mag

3 likes

Complain

Similar Grow Questions

Solved

So in the last 3 pics from Day 22...am I seeing a calcium deficiency? She gets tap water, which I was hoping has sufficient calcium. But now I'm thinking I might need some Cal/Mag. Is she hungry for calcium?

Leaves. Color - Dark-brown

6y ago

1

3

Solved

Weird leaves .. defiency??Hi All. These are autos in late flower. I know there's not much I can do but ride it out Just curious to know what the problem is. Or defiency? 💚

Leaves. Color - Dark-purple

Leaves. Color - Dark-brown

Feeding. Deficiences

4y ago

1

1

Solved

Brown spot On only one of my plants there is a brown spot which I have no idea where it can come from. I didn't give too much fertilizer and I regulate my ph between 6 and 6.5. Some idea?

Leaves. Color - Dark-brown

3y ago

3

3

Solved

Calcium / PH issues? Did I take the correct steps?Am I on the right track to remedy my plant's issues? Seems like calcium deficiency to me. Soil test comes in at just under 6.5, my reservoir water going in is 7.3ph, in case its actually a lack of calcium and not the PH i've top dressed gypsum (and epsom salts).

Leaves. Color - Yellow

Leaves. Color - Dark-brown

3y ago

2

3

Solved

Trash or can she be saved Can she ne saved or no! :/ I thinks it's a no go, idk what went wrong can she be saved or no

Leaves. Dropping off

Leaves. Color - Dark-brown

Plant. Wilting

3y ago

1

4

Solved

Been wilting every 2-3 days and then recovers after watering. Brown spots appeared in the last 24 hours. Pictures of leaves off and on the plant in latest week's pictures. Water ph'd very high (7.5+) and I have lowered to 6.5 for this watering with 1/4 strength nutes and vinegar.

Leaves. Color - Dark-brown

6y ago

5

3

Solved

Hi Buddz and Buddettez how is it going?😁✌️ The Sticky Beast and also my Zkittlez auto are changing in colour, my guess were the cold night temps but i also see brown spot last days and some fan leaves curling upwards and falling off. Can some1 help me indentify the problem?😁👊

Leaves. Color - Dark-brown

6y ago

2

2

Solved

what could this be noticed this curling in my leaves today what could this be?

Leaves. Curl up

5y ago

3

2

Solved

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.

Leaves. Curl up

Leaves. Color - Pale

Leaves. Color - Dark-brown

2y ago

4

5

Solved

OrganicRepresent

Yellowing leaves Hi there i have issue with one of my girls and start similar issue with other not sure of what defiecity is it? Or underwatering? New leaves seem to have it as well. What issue can this be ? Can You help me please. Thanks.

Leaves. Curl up

Leaves. Curl down

Leaves. Color - Yellow

5y ago

6

6

Solved

Brown dots on leafs Just checked on my girls, and noticed this slight brown mark on 2 leafs... what is this?

Leaves. Color - Dark-brown

Other. General questions

6y ago

4

Solved

Brown patches on leaves Noticed these marks on the leaves of the plant I've had problems with. Any ideas what they could be? The other two are smelly amazing and the single plant is so sticky! I think it might be the cheesecake but I'm really not sure, I won't make the mistake of mixing them up again

Leaves. Color - Dark-brown

5y ago

1

2

Solved

Older fan leavea tacoing Are the tacoing on leaves caused by lights? Only happening to older fan leaves.

Leaves. Curl up

4y ago

3

5

Solved

SupportiveMango

What nutrient deficiency is this?What nutrient deficiency is this? Or is it nutrient burn? I'm watering with 5.5 PH using half strength Nutes, Root booster & Calmag. I don't think it relates to spiders mites since I can't see any with my 30x magnifier. Thank you so much in advance.

Leaves. Color - Yellow

Leaves. Color - Dark-brown

Other. Bugs

4y ago

3

3

Solved

Leaves curl up/ no change of color Hi everyone, i got 3 plants and 1 of them has the problem that his leaves curl up without change of color, another plant has it a bit but not so much and the other is fine ( they are 9 days old ) i treated them all the same.anyone knows what it means and what i gotta do ?

Leaves. Curl up

2y ago

1

1

Solved

Plant was stuck in shell with leaves growing 3 days ago i planted my seedling. It emerged, but until today, it couldn't pull off it's shell. I helped it a bit and in a little under 3 hours, it's like this. The leaves even grew inside, is it gonna be fine?

Leaves. Curl up

2y ago

2

7

Solved

leaves turning brown in middle. I dont know why, if anyone could help me out

Leaves. Color - Dark-brown

5y ago

1

3

Solved

Foglie Ho un problema alle foglie sapete cosa sia? Ho provato ad alzare i led a 50cm per vedere se sia quello il problema. Voi cosa dite?

Leaves. Edges burnt

Leaves. Color - Dark-brown

5y ago

2

3

Solved

Problem New Problem . How Can i fix this?

Leaves. Color - Dark-brown

1y ago

3

3

Solved

Heat or something else?Assuming the curling leaves from heat? it's Effecting everyone EXCEPT the American Pie which has been perfect from day one which quick growth on her. Plan is to get more fans to help more the air around , any thoughts etc would be great D

Leaves. Curl up

5y ago

2

2