I have a super silver haze plant that is 8 days old. I tested the runoff from the soil and it was high 7.5 to 7.8. The seedling has been growing slower than the other plants but has shown no discoloration until I watered it two days ago with water at a ph of 7 to 7.2. Yesterday the plant began to show yellowing on the outer edges, mostly the tips and appeared slightly yellow on the vein in the middle. Today it is a little worse but otherwise it appears healthy, the leaves are not wilting. I have done the same thing to two of my mids plant and it didn't show any bad effects. When I transplanted I watered the soil mix with a 1/4 the recomendeded strength mg 30-10-10 water soluble mix. I added 1/4 tspn of lime to the 5 gallon pot while mixing in the soil. Other than that I have not fertilized and there were no added nutrients the mix. Any tips?

Hey Ganja,

What kind of soil did you start with? Are all of these plants from the same seed stock/strain? Your pH is too high at 7.5 by almost a whole point. Without a picture, all I can guess is that you are seeing the first signs of nutrient lock-out, and if you don't start working that pH back down (gradually to be sure!) the situation will only get worse, because as the pH goes higher more nutrients will be locked out.

This might be happening because your soil did not have enough organic material in it to begin with. If you mixed your own you may not have mixed the soil at the bottom of the bucket well enough, leaving soil that was not pH balanced to begin with.

Those are the first two things I can think of, and with a pic it might be easier to narrow it down.

4kaan4

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my mix was 40% scotts topsoil mix with peat moss added, 25% perlite, 25%vermiculite. I figured it was nutrient lockout. I tried to flush out another pot with the same mix that had no seeds. I used 8 gallons of water at a pH of 6.5 to 6.8. After flushing with 8 gallons I tested the runoff which wasn't lowered at all!!!! The hydrated lime I used is keeping the pH stable and neutralizing the water I lowered the pH of the water with apple cider vinegar. should I use elemental sulfur or what is the best way to bring down the pH?

Sounds to me that you need to transplant them.But this time leave out the peat moss.I had three plants going one time in soil and one of them did the same thing.Out of the three when I was mixing the soil I ran out of peat moss and it was in just one pot.The other two didnt have peat mixed in.The one that did started turning yellow.I tranplanted it and it came out of it and grow out good.When adding lime it's one table spoon per gal of soil.To lower ph vingar,but vingar dosent last very long.I use GH ph up and down.I PH my water to 6.3 or 6.4 and PH the water after you mix your nutr in the water.But 6.4 is what you want in soil.Fredfarted has a post on PH that you can get from the auto parts store.When I run out I'am going to use it.It's cheaper too.Get some pixs up and we can be of more help,but I think if you tranplant in new soil you will be fine. PEACE

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I plan on transplanting tom. I was thinking of using a soiless mix consisting of 1pt perlite, 1pt vermiculite,1pt used mushroom compost, and 1 part peat moss (or not). I will make sure to get the pH right before transplanting this time. Thanks tokecarazy, I only have one super silver haze seed and would hate to see it die.

Also what is GH ph up and down. Can I use pH down for aquariums.

You can use the aquarium ph and down.

It is available for plants as well.

How are you testing ph?

If you are using a multi meter it could be off.

Try the stips they are cheap and more accurate.

'Toke' The reason your plant turned yellow in just moss is because it has no nutes. It is more of a soiless medium. Most people mix it in with soil.

I am using it this time around on all my seedlings. I plan to add some soil whe I move the next pot size.

Now they are just in spahgum moss and perlite.
They are doing nicely.

I am adding a very low dose of npk once a week now.
They are loving it.

As for the yellowing on the leaves gangababy your ph is too high.

You would be better around 6.5.

The ph you have now is locking out your nutes. In turn the plant is using up it's own stored nutes.
This is what turns the leaves yellow.

If you are using tap water make sure to let it set out for 24 hours in an open container.
You should shake it vigoursly to oxygenate the water before watering.

If you are going to be testing ph with an accurate measuring you should test runoff.

Then when you water you will learn how low or high to make the ph before watering.

If run off is to high add a lower ph and vice versa.

Hope this helped
Happy growing and toking

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7.8 is ultra high, and 7.0 is even a little too high optimal range is about 6.5 for soil and even lower for hydroponics.



that could be the issue right there.

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Grow good ganja you should

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yeah man, more of the same, just get the pH in check and make sure your watering and nute supply isn't overdone...

I transplanted the ssh today in a mix of 1pt peat moss, 1pt vermiculite, 1pt perlite, and1pt mushroom compost. The mix is very light and drains well. I got the pH to 6.5 no problem with this mix!! I went to the pet store and bought pH adjuster for my water instead of using vinegar. The pH out of the tap is 7.8! I think I caught the problem early enough. I hope my baby will pull through. Thanks for all your tips guys I'll keep you posted. Here is my grow journal. http://www.greenpassion.org/grow-jou...irst-grow.html

Good job.

Sounds like you did catch it early enough.

Do not add any nutes until the plant if atleast 30 if not 40 days old. Then start with the quarter strenth.

If you feel like you need to add nutes make sure it is a very low dose. I would say 1/16 th of the recomended dose under 30 days old.
I also do not recomend doing this until you have more expierence with listening to the plants to learn what they need.

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I transplanted in the new mix. The runoff was 6.5-6.7 I used a mix of 1pt perlite, 1pt vermiculite,1pt used mushroom compost, and 1 part peat moss.The leaves are more yellow around the edges today and the tips of the leaves are curling up. Here is my grow journal..
http://www.greenpassion.org/grow-jou...irst-grow.html

ok so it was tight for five days, my plant stopped growing and about 1/2 of the two biggest fan leaves have died. Today I noticed the cotelydons (the two round leaves) have started to grow again and there are new fan leaves forming so I'm holding my breath. I've been watering with H20 only at 6.5 to 6.8 every 2 or 3 days depending on how the soil feels. I decided to foliar feed with MG 30-10-10 at 1/4 the rec strength, I do this once a day and mist the leaves with water 3 times a day. I think this is why the plant pulled through. I might have some super silver haze yet!

Good luck. Check out FAQ plant abuse chart. Tons of info.

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Dude, you gots lots of excellent advice here.
I'm from the school of keep it simple stupid.

You may be overcomplicating your soil mix, try using your soil, perlite, and some bone meal, that's it, nothing else.
65% soil, 35% perlite, and a little bone meal, thoroughly mixed into the soil, and put your nutrients away, you won't need em' for vegging. Bone meal is dirt cheap, maybe 5 bucks at agway or home depot. After 2 weeks go by, simpy top feed em a little more bone meal, and that will take you into flowering without needing any other nutes.

Now, of course you will need nutes for flowering.
(all this is assuming you get your PH under control)
Peace

I agree I would've killed that plant if it wasn't for the people here at the sight. Thank you! The new mix has a good pH so it is now under control too. I plan on trying bone meal for my next grow. How much would I need to mix in with a 3 gallon pot.