Leaf burn problem

I'm stuck on what type of leave/nute burn this is, and what she is lacking. Would really appreciate some help on the matter. Are these leaves pretty much useless as of now? The plant has started flowering recently enough, included a pic of the flower as a bonus

EDIT: also to note the smaller leaves near the bottom are suffering more from this, the larger leaves are not as prone to it, but still 3-4 have the visual symptoms. And it is an outdoors plant.

Looks like regular old nute burn. What soil are you in?

shamrock seed & potting compost. its peat based. i have no idea of the pH values as i don't have a kit. I'm already getting the feeling peat the the issue here.

assasinofyouth420 said:

Looks like regular old nute burn. What soil are you in?

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come on now, does it really? Did you look at any of the other leaves on the plant? While anything is possible, I'd hardly call this a burn, it looks more like a deficiency that may be caused by PH lockout. I'm willing to bet one of two things, Soil PH is 7.0 or higher, locking out Boron/calcium or the plant needs a source of micro nutrients.

If it was nute burn, a lot of the tips would be showing before a leaf got anything near that bad. That looks more like lock out.

senorcoconut said:

shamrock seed & potting compost. its peat based. i have no idea of the pH values as i don't have a kit. I'm already getting the feeling peat the the issue here.

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I'd love to see the PH runoff from that peat. If it goes near 5.0, you have lockout of some micro-nutrients such as zinc, boron, copper, calcium, etc. Without knowing the PH, it is impossible to advise with 100% certainty. When you can, get a digital PH meter. So many potential problems can be solved or avoided all together if you monitor the PH levels.

leaves turn yellow and die durring the flower phase.

Serapis said:

I'd love to see the PH runoff from that peat. If it goes near 5.0, you have lockout of some micro-nutrients such as zinc, boron, copper, calcium, etc. Without knowing the PH, it is impossible to advise with 100% certainty. When you can, get a digital PH meter. So many potential problems can be solved or avoided all together if you monitor the PH levels.

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Total newbie behavior on me part i know. I'll grab a monitor tomorrow and post the numbers, should be interesting. PH lockout is not fatal i presume? Thank you for the info!

CrazyBudz said:

leaves turn yellow and die durring the flower phase.

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That leaf is doing more than turning yellow. Take a look at it and take notes..... it is not a normal N def in flowering. It clearly looks like micro-nutrients missing, probably from a lock out.

Senor, what have you been feeding it with and how often?

Serapis said:

That leaf is doing more than turning yellow. Take a look at it and take notes..... it is not a normal N def in flowering. It clearly looks like micro-nutrients missing, probably from a lock out.

Senor, what have you been feeding it with and how often?

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Been feeding it Levington Tomorite every 7-12 days (UK levels - N4.0 P4.5 K8.0) has some seaweed extract in it also

edit: i forgot to mention i give it a small amount of bottled water every 3-5 days

senorcoconut said:

Total newbie behavior on me part i know. I'll grab a monitor tomorrow and post the numbers, should be interesting. PH lockout is not fatal i presume? Thank you for the info!

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No it is not. You can adjust it by adjusting the PH in the water up or down.

I just tested the pH, it is roughly 6.0 ((i could not get a digi tester, using a manual kit) and i don't trust this kit, piece of shit))

Can i just flush the plant and expect this problem to go away? i am unsure about reverting this problem back to normal.