Per advice @MidwestGuy and @DRsDank using Jacks 321 and balancing PH my leaves continue to look like this pic. Not as bad but still happening. I am letting the pots dry out before watering, What else can I or should I do?
Also the stems are turning red. If you zoom in, you will see that. TIA
Stems turning red is fine , it takes a bit to recover The leaves that had issues will probably die off if late stage of a problem.
Thanks but leaves continue to get spots and turn yellow then brown and die. Could this be something that Jack’s 321 won’t help?
What soil are you using, and what ratios are you mixing your jacks? Also, high temps can cause what look like deficiencies/toxicities.
I’m using Fox Farm soil. I’m using they’re recommendations for mixing. Part A 3.6 grams Epsom 1.1 gram part B 2.4 grams
The leaves don’t look like any specific deficiency. What kind of temps are you dealing with in your area? My summers got hot as absolute fxxx and I’ve grown soil with synthetic nutes, and living soil, each gets leaves about like yours. Are you feeding with every watering, to full runoff?
Took these pics today. There must be something causing this. @MidwestGuy or anyone that can give advice?
She honestly doesn’t look bad. Maybe a little hungry since she’s in full flower now. I usually bump up Part A a couple points and lower Part B just a tad. But I don’t use standard Jacks recipe.
Also, those bigger, older fans will die off.
OK, I am going to stop stressing and just pull the dying/dead leaves off. I’ll bump up part A and bump B down a bit. Do you think it needs any other nutes?
Nah, Jacks is adjustable enough that you don’t need any boosters or anything.
I’m pretty new to this so I could definitely be wrong but it looks like maybe potassium deficiency.
Signs are leaves like this starting from the bottom leaves as the new leaves Leach their potassium and the second sign is red or purple stems. My references are the Rosenthal grow Bible and Royal Queens Seeds nutrient deficiency website (Potassium Deficiency in Cannabis: Signs and Solutions - RQS Blog). I had a similar issue caused by a failing auto feeder. I’m indoors though and your plants are much taller so this could definitely just be normal turn over. It’s also my first grow so I’m still very new to the plants. I use advanced nutrients and I just hit mine with a heavy bloom and big bud dose and it parked back up in about 3 days and is looking good again. You’ll need a ton of potassium too going into flower so I’m not sure how a recovery dose of it could really hurt.
Anyone that knows more please hop in and correct.
Thank you! I have bat guano that I can make a foliar spray with.
No way this is normal. There are probably 30 more leave like this just today. I need guidance please. @midwestguy @drdank
What is your watering schedule? I’m seeing immobile deficiencies with yellow leaves all over not just bottom. Have you done a soil slurry or checked runoff ph? A ph imbalance will cause them to look like that. I had a ph issue once that did exactly that, yellowing leaves would get limp and fall or pull off with no resistance. My ph was locking out nitrogen and a couple other minerals, they just couldn’t eat what was on their plate….
I water when they dry out sometimes daily. I use a water meter to make sure they are dry and even stick it in the holes at the bottom. I have been using Jacks 321 with every water. I am balancing my ph to 6.8 with every water. I’ll test the runoff tomorrow as I plan to water them in the morning. Initially, before I was PHing the water, the runoff was very low, like 5.5. I have not done a slurry soil test. I do have a kit to do that.
That low ph can be from nute buildup. Do you water to runoff? That’s a must with Jacks, it’s a little trickier in soil. Test runoff, maybe do a slurry test to compare the two and we’ll see if you’re just locked out. Then we’ll see about fixing it. Throw that moisture meter in the trash , let them dry out until they’re very light, like a loaf of bread! Then water to full saturation, water slowly, give them 1/2 gallon and let it soak in good, then water until you get very slight runoff in soil. They like a drought to drench schedule. Watering practices alone can cause your issues. I’m thinking ph imbalance still though. What size pots are they in, hard to believe soil dries out enough to water daily!…. If your runoff ph was 5.5 , your locked out for sure.
Weve been seeing alot of FF bagged mixes straight outta the bag with a tanked PH. I would start by watering with a Phd water around 7. Giving her a good slow water at around 30 min. Allow the soil the saturate real good. Do this everytime she starts to dry out. The affected growth wont improve, just watch the overall plant. It will take a week or so to really start showing improvement especially if you are locked out.
I do water up runoff. Your taking about testing ph right? They look wilted when I water them so I’m assuming they are dry as they perk up after watering.
OK did the slurry from soil at the bottom of the pot. It was 6.0, maybe a bit lower. Tested the runoff and it was 5.8. So, would this cause nute lock out? If so, how do we fix that? I appreciate your help!
