Yellowing leaves help?

jack06041989

Active Member
I am having problems with yellowing leaves and really want to know how to fix it. I am growing in this soil

the plants are now 5 weeks old so have started light feeding with plant magic soil grow.They are in their final fabric pots with a 30% of perlite mixed in. I’ve had the same problems with my last 3 runs as well but my first run was completely fine, the only thing i done different was not using perlite for the first one.The environment is all ok etc. And the growth seems really slow also. I juts want to stop this yellowing really badly.
 

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drsaltzman

Well-Known Member
Not familiar with that soil but it didn’t get many good comments on your link.
The plants don’t seem to like it with the perlite.
Maybe not enough nutrition since you removed 30% of the soil from your first successful grow by adding the perlite.
Are you feeding it?
 

myke

Well-Known Member
I had a look at this verve stuff,it needs food,basically kinda like promix. I would add food to the rest of your bag so it can cook down.Or if using salts give your plants like .5EC Of veg food.
 

jack06041989

Active Member
I know man there are better soils out there but I’ve read successful reviews about it also, and it’s cheaper for the size I’m doing. Also I used it on first run and it was fine. I have been feeding yes, small amounts so far
 

myke

Well-Known Member
I know man there are better soils out there but I’ve read successful reviews about it also, and it’s cheaper for the size I’m doing. Also I used it on first run and it was fine. I have been feeding yes, small amounts so far
Its not really soil,says 58% peat also says green compost? and coco I think.So its basically an inert medium.You add the food just like promix.
 

myke

Well-Known Member
Find yourself some dry organic fertilizer like a 4-4-4 and mix a cup of it to 5 gallons of verve.Moisten it and let it sit.Stir it evry once and awhile and in a month youll have really good soil.
 

drsaltzman

Well-Known Member
You cut the mix by 30% which cut the nutrients.
You have to make up for that.
Could be many things including PH since you’re basically in hydro at this point.
 

simpleleaf

Well-Known Member
In my own growing, I consider peat in the potting mix the kiss of death! :mrgreen: Plenty of growers here use it, so obviously my judgement is biased. Here's an image from page 14 of Argus Control's Nutrient Dosing Handbook.

mineral availability in peat versus mineral potting mixes from argus controls.png

It seemed relevant, since your link makes the assertion that Verve Multi-purpose Compost is 58% peat. Were I trying to grow in it, I definitely want to know the potting mix's pH.
 

jack06041989

Active Member
In my own growing, I consider peat in the potting mix the kiss of death! :mrgreen: Plenty of growers here use it, so obviously my judgement is biased. Here's an image from page 14 of Argus Control's Nutrient Dosing Handbook.

View attachment 5028506

It seemed relevant, since your link makes the assertion that Verve Multi-purpose Compost is 58% peat. Were I trying to grow in it, I definitely want to know the potting mix's pH.
[/QUOToh shit! Is this legit this handbook? It’s juts confusing as I used it first run with no problems
 

myke

Well-Known Member
Remember every bag you buy will have a different pH so its up to you add buffering like compost/ewc etc.Let the soil cook a little.

If your salt feeding then you may have to do a hard correction to the pH.It can be 4-5 right out of the bag.
 

BioScout

Member
Answer is in the link OP provided..

" This hearty mix won’t suit acid-loving plants such as Rhododendrons, Heathers, Azaleas, Japanese Acers, and Camellias "
 
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