What could be the issue?

[CellarDweller]

Hey,

What could be the issue with my plants? About 4/8 experiencing similar problems. I thought maybe nutrient burn/ salt buildup so flushed the plant with PHd water for 3 days, returning to lighter feeding yesterday and today.

any help appreciated

 

[CellarDweller]

I should also add during PK week I used the maximum recommend boost (100-200 I used 200ml) so original thought was nute burn over kill

 

[tobedetermined]

You are not getting any attention here . . .

As you are doing, I would return the plants to the feed schedule you had before the PK hit. I too would suspect an imbalance from the PK dose.

 

[Rodehazrd]

looks underfed to me

 

[CellarDweller]

You are not getting any attention here . . .

As you are doing, I would return the plants to the feed schedule you had before the PK hit. I too would suspect an imbalance from the PK dose.

I take it the leaves aren’t going to repair themselves so will have to live with that? I guess not an issue of going to be trimmed off anyway, just ugly haha.

I’ve just followed the canna recommendations for week 5~ and lowest dose of sumo active.

new grower so genuinely curious I’m on right track

 

[CellarDweller]

looks underfed to me

Really??

 

[Creeperpark]

Friend, you need to collect some run-off every time you add something or change anything. Even when flushing you need to test the run-off so you will know how many salts are in the root zone. Also, before testing make sure you clean the drain trays each time so you don't get false readings. Giving more isn't always best for the plant but the only way to know for sure is always to test your run-off with a EC and pH meters. In late-flowering some plants use much less rather than much more.

 

[Creeperpark]

Also, the type of water you use will make a big difference in your garden. If you give your plant water with junk in it, the junk will block some receptor sites and lockout the good nutrients by raising the pH. Growing plants in a container a month is very easy, but growing them for 4 to 6 months, you have to be careful to limit the hydroxyl content. (alkalinity). Pure clean fortified water is the best water because by the end of the grow there's less junk stored in the root zone.

 

[Bulletface]

Hey,

What could be the issue with my plants? About 4/8 experiencing similar problems. I thought maybe nutrient burn/ salt buildup so flushed the plant with PHd water for 3 days, returning to lighter feeding yesterday and today.

any help appreciated

look decent enough keep doing what you are doing not long to go good luck brother

 

[Rodehazrd]

Really??

Yeah my pineapple express does it when low on k. I don't think you can fix it at this late date and running out of nutes late in flower is not a bad thing. Give us more info, strain, weeks into flower,type of bottle nutes, and makeup of media. If you're running seeds you may be seeing different phenotypes too.
Either way you got some nice looking flowers.
Happy Growing

 

[St. Phatty]

Looks pretty Med Quality.

Are you using CO2 ?

What kind of ventilation ?

 

[goingrey]

looks underfed to me

To me it looks the exact opposite, overfertilized. Also based on the info... Never used CANNA but at least with other brands following manufacturer recommendations is much more likely to result in overfertilization than being underfed.

 

[f-e]

Stand further back, they will look fine

It's not the usual stuff. I might start looking up boron and copper as it's somewhere in the small stuff. However, problems there are almost always a pH issue. So start there, before tracking down the actual culprit. Of which I'm not sure, as all the macro stuff is rarely addressed by adding more. It's generally a pH lockout or perhaps a lockout from other elements in your feed antagonising a macro

 

[Rodehazrd]

I haven't used canna either and true following the label can get you burned on some strains but as fe says lots can cause a lockout. I thought I had mag issues and all manner of things but when i went up 2 grams of mkp per 5 gal water in weeks 2-6 those inter vein yellows went away and my tips didn't burn. I got a nice smooth fade. I thought it was due to k regulating temp some. But i just read these things and usually know more than i understand and at the higher level my ec was 1.1 I would guess a full dose of canna could be 1.8 or more.

 

[Creeperpark]

Hey,

What could be the issue with my plants? About 4/8 experiencing similar problems. I thought maybe nutrient burn/ salt buildup so flushed the plant with PHd water for 3 days, returning to lighter feeding yesterday and today.

any help appreciated

If you never check your EC you will never know for sure.

 

[Lester Beans]

It is a little overfed, just continue on with lighter feed until harvest, not a huge deal, shouldn't affect outcome.

 

[CellarDweller]

So I found out the problem; user error, obviously, but quite embarrassingly so…

I decided to use Shogun Active Sumo Boost as I had read it’s the exact same ingredients as Canna Boost, dilutes better and half the price nearly. Anyway, so recommendations for PK week we’re 100-200 boost on the Canna guide website. I used 200 with recommended PK, however I forgot I was using sumo, which should be 1-2ML per litre so with my tank should’ve been 50-100 whooooops. Ahhh well we learn, won’t do it again haha.

Flushed for 3 days and collected run of data etc, then fed a lighter feed now and looking happy again, despite the nute burns, which will be trimmed off anyway.

 

[Creeperpark]

So I found out the problem; user error, obviously, but quite embarrassingly so…

I decided to use Shogun Active Sumo Boost as I had read it’s the exact same ingredients as Canna Boost, dilutes better and half the price nearly. Anyway, so recommendations for PK week we’re 100-200 boost on the Canna guide website. I used 200 with recommended PK, however I forgot I was using sumo, which should be 1-2ML per litre so with my tank should’ve been 50-100 whooooops. Ahhh well we learn, won’t do it again haha.

Flushed for 3 days and collected run of data etc, then fed a lighter feed now and looking happy again, despite the nute burns, which will be trimmed off anyway.

Sorry Friend, I didn't know you were experienced when I recommend you get meters. Thank you for sharing, very helpful.

 

[Douglas.Curtis]

With cannabis it is best to start near minimum dosing, even with 'cannabis' products.

You want to make your errors on the underfeeding side, because overfeeding causes excess to be bound to new growth tissue. The majority of this will never flush or fade out, and will definitely impact quality in the end flower.

 

[CellarDweller]

Thanks for all the responses ! Truly appreciate it and it allows me to improve as a grower