N Deficiency?

Hi all

My outdoor plants have been growing great until recently when I noticed some yellowing of leaves on a couple of my plants. I first noticed it a couple weeks ago and within a few days I noticed it spreading from the bottom on plant #1. I checked the ph (with a bluelab soil meter) and found all three of my plants were all low with the ph hovering around 5. I figured it was just nutrient lockout because of the low ph and picked up some dolomite and top dressed my plants to bring up the ph. About a week later the ph had came up to 6 or above for all plants but they were still yellowing slowly. Plant #1 now has yellow leaves working its way up the branches. Next watering I added some Epsom salt (at 1 tbsp per gallon) to see if the mg would help, they all seemed to like it but it didn't stop the yellowing. Another week and all plants continue to yellow slowly. I now feel like they are N deficient from the reading I have done. Before I try to treat a N deficiency I thought I would reach out here for help first. I don't want end up adding to much N and messing up flowing, but I realize going into flowering with a deficiency is not good either. I was thinking of adding alfalfa meal or blood meal in water as a top dressing to help with the N deficiency?

Soil:
I have the plants in 30gal fabric pots with SeaSoil Complete.

Nutrients:
I am using the full Remo lineup of nutrients as directed by the package. I have been feeding about once every week when possible during Veg. The last two feedings have been each 3 days and I have added the flowering nutrients as well currently feeding around 1000ppm. Veg feedings were about 500-600ppm.

Watering:
For the last month I have had to water about once a day on the hot days and each other day too each three days if its not sunny. For plant #3 on really hot days it needs two waterings or it gets droopy leaves, but as soon as I give her water she starts praying again. I use a moisture meter and water when a plant is dry.

Plant #1


Plant #2


Plant #3


Thanks in advance for any help.

Yes n def showing but im sure more food overall is needed right away. they are starving and will LOVE you when you give them a blast of N.

Thanks for the quick reply getogrow

What would you suggest as the best way to get them more N? Do you think adding the bloodmeal or alfalfa meal is good idea as an additional source of nutrients? I figured it would help sustain them between feedings. Or should I just be upping the PPM of my feedings?

I have added a 1/4 cup of blood meal mixed into water for each plant. I will also start feeding more.

Fingers crossed!

The tips of your leaves are fried from being overfed. I think you are letting the soil get too dry and they are going hungry, then you are overcompensating by doing a heavy feed.
Every time I let my plants get bone dry because I miss a watering they get yellow leaves. Keeping your moisture levels more consistent should help. You may want to check the PPM of your runoff to see if you have salt buildup from the soil going dry.

100% what Waterproof said.

Hi Waterproof808

Thanks for the suggestion, I will check the runnoff ppm on the next watering.

Plants #2 & #3 do dry out more then I would like, I will try to keep the watering more consistent. Should be easier now as I don't have any more vacations planned for a while.

waterproof808 said:

The tips of your leaves are fried from being overfed. I think you are letting the soil get too dry and they are going hungry, then you are overcompensating by doing a heavy feed.
Every time I let my plants get bone dry because I miss a watering they get yellow leaves. Keeping your moisture levels more consistent should help. You may want to check the PPM of your runoff to see if you have salt buildup from the soil going dry.

Click to expand...

if it were just the tips of the leaves i would not of posted what i did. That is a CLASSIC pic of a N def.
I would feed her something instant (chems). The blood meal has plenty of N in it but its going to take a while to break down......from what i recall , it doesnt take as long as most of the other organic foods. Hopefully you'll see her looking better in the next 3 or 4 days....

Im not 100% against what waterproof said ....thats just not the case with your plants.

Hi Guys

Just wanted to say thanks again for the info. Plant seem to be have stopped the yellowing of leaves.

I have increased the frequency of feedings and am keeping a closer eye on preventing them from drying out. Seems to be working so far!

Also finally plants #2 and #3 have started flowering, plant #1 feels like it is close behind.

Thanks @getogrow and @waterproof808 for your help!