this post was submitted on 08 Jul 2024
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Well it's in the title... They were growing great but in the last days or so the leaves started wilting. They always showed some yellowing and I thought about nitrogen deficiency so I fed them with slurry but without success... Any tips?

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[–] [email protected] 5 points 4 months ago (1 children)

No, the cannabis is fed with a special cannabis fertilizer.

[–] [email protected] 8 points 4 months ago* (last edited 4 months ago) (2 children)

Give it some, there’s nothing special about cannabis nutrients than marketing. Most have generic watering guidelines if you’re following a specific formula.

Is it in the same soil? Most soil meant for cannabis comes with no nutrients in it, so if the cucumbers are in the same stuff, she’s hungry for everything you haven’t given it.

[–] [email protected] 6 points 4 months ago (2 children)

I have a good chuckle every time I walk down the fertilizer isle of the home improvement store. 50 plus varieties of hyper special pot fertilizer that is totally better than miracle grow, they claim, for 5x the cost. What ever happened to three simple numbers on the bag?

[–] [email protected] 4 points 4 months ago (1 children)

Yeah those numbers can be insanely hard to find. Honestly I just grab a good full spectrum one or just miracle grow since it's not like I'm dumping hundreds of gallons across acres.

[–] [email protected] 0 points 4 months ago* (last edited 4 months ago)

It’s so you can’t mix and match brands. They all have slightly different variances.

Some do say you can use with any other brands, I use technaflora myself. They market as hydro nutrients over “cannabis” and have a great recipe for cannabis I follow. I also mix up generic nutrient batches and use my runoff for my garden once in a while too. They all the NPK on the front, and the micro contents too. It’s the usual 3 part basic components (base, flower and veg) and the extra micros (thrive alive b-1 red, magical, awesome blossoms and sugar daddy).

[–] [email protected] -1 points 4 months ago

To be fair, some plants do have different needs. You can of course tailor the mix yourself to meet these needs, but some do need more of one particular nutrient over others sometimes. Cannabis likes to feed heavy, especially calcium and magnesium (micro instead of the macro NPK nutrients) so you usually need to supplement those with regular feed.

And I should say at least a 3 part since they have vastly different needs in veg and flower, so the bare basic “generic” nutrients won’t actually cut it for a decent harvest. Yeah you’ll harvest something atleast though.

[–] [email protected] 3 points 4 months ago (1 children)

Thanks, I'll try feeding the cucumbers with my cannabis nutrients. It's COMPO Grow Organic by the way.

Yes, they are in the same soil but I didn't use special cannabis soil but instead a simple potting soil mixed with some perlite for better drainage. I also added some horn buckle before planting.

[–] [email protected] 1 points 4 months ago* (last edited 4 months ago)

Okay, some potting soils come with some nutrients or time delay nutrients, so if things were fine and went down hill, she ran out of stuff to feed on.

I could be off base, but I would start there, check the soil, see what they say to start feeding if they do.