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Deke

Member
So I noticed the tips yellowing tonight. This is just in the last 24 hours. The plants are about a week and a half into flowering approximately. So any ideas on what's starting or happening would be appreciated. Thanks
 

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TanzanianMagic

Well-known member
Veteran
So I noticed the tips yellowing tonight. This is just in the last 24 hours. The plants are about a week and a half into flowering approximately. So any ideas on what's starting or happening would be appreciated. Thanks
- Magnesium

The very dark green leaves; the disappearing central veins of the leaves; the fact that the plants just went into flowering.

- Dry soil

As the plant starts developing flowers, it actually needs more water. Don't overwater, however by watering slowly, the soil has the time to absorb more. A watering blanket is also useful, because it takes the guesswork out of watering.

Dry soil will also show up as a nutrient deficiency/lockout - usually of the nutrient that the plant is using most of at the time.

0.1 EC of epsom salt is a good addition, if you're using tapwater with some calcium and magnesium in it. R/O water needs a little more, say starting with 0.2 EC of epsom salt.
 

Deke

Member
- Magnesium

The very dark green leaves; the disappearing central veins of the leaves; the fact that the plants just went into flowering.

- Dry soil

As the plant starts developing flowers, it actually needs more water. Don't overwater, however by watering slowly, the soil has the time to absorb more. A watering blanket is also useful, because it takes the guesswork out of watering.

Dry soil will also show up as a nutrient deficiency/lockout - usually of the nutrient that the plant is using most of at the time.

0.1 EC of epsom salt is a good addition, if you're using tapwater with some calcium and magnesium in it. R/O water needs a little more, say starting with 0.2 EC of epsom salt.

I think you nailed it. I have been watering lightly due to fear of over-watering. So I'll give it a little more water and see what happens but I hope you're right cuz that would be a pretty simple fix. Thank you very much
 

Deke

Member
The plants are in a water only soil, from Detroit nutrient company. And I'm watering with spring water, because my tap water is extremely hard here and I don't have an RO system
 

DrDee

Member
The plants are in a water only soil, from Detroit nutrient company. And I'm watering with spring water, because my tap water is extremely hard here and I don't have an RO system

Hi Deke,
Careful with spring water...can have high EC. Better to use "drinking water" which is RO.

I think TM hit the nail on the head.
Good luck man...
JD
 

Deke

Member
Thanks for the tip. Quick question, I have a Brita would that be okay to just strain my tap water with that?
 

DrDee

Member
Thanks for the tip. Quick question, I have a Brita would that be okay to just strain my tap water with that?

That's an activated charcoal filter...right? Won't reduce disolved solids. It will help remove chlorine...taste is what they are about. organic aromatic compounds and stuff like that...not Ca or mg.

I use three large RO style charcoal cannister filters...just to eliminate cl and chloramines. EC remains pretty close to the same.

You can pick up a cheap RO system for close to $100. I had really bad water when I grow in Iowa. RO system solved all those issues. I have a buddy who tells me I need RO...because of the inconsistency of my tap water. Ph changes seasonally and RO stabilizes things that way too.
JD
 

Deke

Member
Thanks. The RO will have to wait until my next grow. I just wrote a huge check to go back to school, time for my second career LOL. So my fun money is spoken for for awhile. I'll have to make do.
 
Hello all, since it seems the problem there is solved, could someone give a look into my baby? I should have been more careful but well...

I think she have a mg deficiency? Or could it be too much heat? The plant it's a auto mazar from DP, using a mix of light soils with coco in the top and on the bottom of the container.

Thank you all in advance, stay safe :tiphat:peace
 

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DrDee

Member
Hello all, since it seems the problem there is solved, could someone give a look into my baby? I should have been more careful but well...

I think she have a mg deficiency? Or could it be too much heat? The plant it's a auto mazar from DP, using a mix of light soils with coco in the top and on the bottom of the container.

Thank you all in advance, stay safe :tiphat:peace

StP,
Best to start your own thread rather then hijacking...

You're plant looks OK. No obvious deficiency. I would include some calmag as preventative if mg is your concern.
JD
 

DrLongbottom

Well-known member
Veteran
deke you were told in previous threads to thoroughly water those plants, you still have not done that. There should be no visible dry soil on the surface after watering, you are stunting roots by not giving enough water. After you give them the water, just wait till they get lite again, and not as lite as they are right now.
 

TanzanianMagic

Well-known member
Veteran
I think you nailed it. I have been watering lightly due to fear of over-watering. So I'll give it a little more water and see what happens but I hope you're right cuz that would be a pretty simple fix. Thank you very much
This is one way I know works well.

1. Lift the pot, and memorize how light the pot feels when the plant needs water.

2. Slow water by just watering enough to wet the entire surface, and no more than the surface. Wait 10 minutes. Repeat. See how much water you can slowly apply like that, without getting runoff.

3. Now lift the pot, and memorize how heavy the pot feels when the soil is completely saturated.

4. Don't water again until the pot is as light as in step 1.

The reason this works, is because every plant needs a different amount of water, depending on size, stage, relative humidity, airflow, temperatures and what not. That's why it is so difficult to say - this is how much you water and when.

A way to sidestep this process, is to use a watering blanket with a reservoir, so water can rise up through the soil through capillary action.

That way water is pulled up into the medium depending on how much the plant has used, and all superfluous water will flow back into the reservoir, so there is never a pool of water that could damage the roots.

Evaporation from the soil is how plants are watered by the sun driving moisture out of the soil during the day and water rising again up the dry soil at night. This is how plants are watered in the tropics when it only rains during certain months. Plants benefit from water drawn up within the roots, and on the outside of the roots, with the roots all plants dead or alive acting as wicks. Cannabis can take a lot of water that way, especially during flowering. To prevent budrot during ripening, you can add extra dry mulch (hemp bedding, straw) to the top of the soil - while maintaining a deeper water source.
 
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greenspiritz

Active member
Hello all, since it seems the problem there is solved, could someone give a look into my baby? I should have been more careful but well...

I think she have a mg deficiency? Or could it be too much heat? The plant it's a auto mazar from DP, using a mix of light soils with coco in the top and on the bottom of the container.

Thank you all in advance, stay safe :tiphat:peace


Tobacco mosaic virus - Uncurable :hijacked:
 

greenspiritz

Active member
What soil she in?
How long potted?
What size pot?
Are you feeding her? If so what and how much?
What are the values of your room (temps & humidity - Min & Max)
What PH are you watering with?
What PPM or EC you feeding her?
 
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