this post was submitted on 24 Nov 2024
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submitted 3 weeks ago* (last edited 3 weeks ago) by Gartentherapie to c/trees
 

Hello fellow gardeners,

my White Widows are sick and I fear they won't make it. They seem to have a severe infection from bacteria, but I also cannot exclude a fungus infection. I may have overwatered them, especially when I thought I had given them too much fertilizer, so I rinsed the soil.

It all started with brown stains like shown above. Then the leaves got burned from the sides (see next picture). Also, the plants started smelling less than before and they grew very slowly.

It got worse before I decided to cut off all affected leaves. However, the disease came back quickly.

To the day, I find stained leaves every day. The upper leaves also started loosing their healthy green color again, turning yellowish. The tips of the leaves are reddish-brown. There also are holes.

The only good news is: the red leav-veins turned green again after the last watering with fertilizer. However, the plants seem to have almost ceased drinking water by now.

Is there anything I can do to save my ladies, or do I have hold a funeral and start all over again?

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[–] [email protected] 4 points 3 weeks ago (7 children)

I think you may have overcorrected with the flush after trying to balance the excess nutrients. Broadly, it almost looks like it's a sulfur deficiency? Difficult to be sure through photos, and honestly it matches a few possibilities so I don't really know for sure.

The drooping really feels like a watering issue. How damp is the soil if you go down a few inches?

I don't give up on plants very often, preferring to run them into the ground in the hopes of learning something, but I'm not positive this one can be saved.

[–] Gartentherapie 2 points 3 weeks ago (6 children)

The first inch is bonedry, but it's damp below that. Soil moisture is about 40-50%.

Apparently, my plants have all kinds of deviciencies. I should have used more fertilizer and better soil. This is almost pure coconut.

[–] [email protected] 2 points 3 weeks ago (1 children)

"This is almost pure coconut."

That makes me think drainage/aeration is a problem. (Disclaimer: I have never grown cannabis; my input here comes from many houseplants). I tend to use perlite to improve drainage - I think I use 1:1 ratio of cococoir and perlite as a baseline, but I'm not 100% sure on that

[–] Gartentherapie 1 points 3 weeks ago

Yup. I should have added some perlite, but it's too late for now.

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