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I am surprised to hear that as the soil is only a couple weeks in use and I made it from home compost and a couple commercial soils. I have some micro nutes in chemical form but want to be sure before adding a weak solution. Why the other plants are not showing this same symptom is perplexing...

In the past couple days one of my five white widow fems has started to develop tip yellowing on the new growth. The plants are 32 days old since ground break, this one about 11 inches tall with tight node to node growth; organic grow with occassional alternate feeds of compost and manure tea...

Ye Yes, I now realize flushing nutes is not wise in an organic grow. Live and learn.

I am learning to not kill my plants with kindness...ie frequent unnecessary watering. lol

After recently transplanting my seedlings to gallon pots I have noticed the runoff water ph is high, as in 8.0. My rainwater I am applying is around 6.5. Is it recommended in an organic grow to adjust your water by its ph or what comes out out of the pot as runoff?

I checked these plants about 3 hours ago and they looked perfect. Just went in and two of them had this brown discoloration. They were transplanted yesterday with no issues into 1 gallon pots from their seedling containers. They are just shy of three weeks old. No nutes, just plain rainwater...

At your next watering you could do a water only flush and watch your starting ppm and ppm after flush. If your rainwater is lower ppm go with that for flushing.

I am not of the opinion plants need fertilized every watering. It is better to err on the side of caution - lighten dosage recommendations as a rule of thumb and watch your plant development closely. Burning induces stress and should obviously be avoided. Salt buildup can be a thing and could...

I am inclined to agree. The more I read on horticulture sites I become increasingly convinced that starting with a nutrient-laden organic based soil is more important than feeding schedules and worries about chem burns from being overzealous. If I do need to resort to chemicals to address a...

I will be beginning to add nutes to early veg plants in about a week or so. My concern is trying to establish a sound nute program for my soil-based plants. I have the (1.) standard 3 General Hydroponics Macro liquid nutes (N, P, K ) from a long ago hydro grow as well as (2.) dry chemicals...

I have both macro (K2SO4, KNO3, KH2PO4, MgSO4) and micro nutes (Plantex CSM +B) in dry form from when I had a planted aquarium tank a few years back. I have the ratios (ex: KNO3 33 g) for mixing into a 500ml H2O volume that was then applied at 1 ml per 10 gallon of aquarium tank water. Is...

It's tough losing a grow, especially so late in the game. Learn from your mistakes and move on....

Update: Attached are pics of the plant root systems. The buildup of wood ash residue is obvious. pH UP or other chemical adjuster is CORRECT way to keep pH balanced. Live & Learn.

It has been 12 days since the yellowing problem was first addressed. The plants have not responded to new nutes, less solution concentration, and pH elevation. There are some that still look OK but the majority have yellowing of leaves, primarily on the buds. Unfortunately the plants don't...

SnaFuu, I think the roots are the problem. See update.

Update: Been about a week now since trying to correct problem w/ plants. The plants seem to have stabilized but the yellow discoloration of the leaves persists. What is odd is that a couple of the plants have normal looking bud/leave color. The grow is in three parallel 6" diameter plastic...

1st grow so be easy on me. ha. my water is clean pond/rain water. I have not had problem running higher concentration (1200-1300 ppm .5 scale) during vegetative. And first two weeks of bloom they grew like crazy! Actually 1200-1300 ppm is what GH recommends on label for aggressive vegetative...

Wattsaver, Magnesium is not readily available, according to the nute uptake charts I looked at, when the pH is 5.3 - 5.4 for 3-4 days. I am keeping pH more elevated now and will keep reservoir topped with bloom-oriented nutes.

A couple days ago I noticed yellowing starting to appear on upper leaves of plants. Plant growth has slowed to almost nil at this point. Plants are in week three of bloom and had been growing fine to this point. Three weeks ago I did a complete reservoir change and put in nutes with a...

That makes sense about the pH drop as more water is removed (plant uptake/evaporation) and the nutes slightly increasing in concentration. So you're OK with levels below pH 5.5? I've heard others say things work just fine as low as 5.2. Someone else commented to me that the pH will always drop...