New Grower Possible Heat Stress? Boron Deficiency?

[Littlefunions]

Apologies if this is the wrong forum. Put it here instead of the Infirmary as I’m doing a supersoil/water approach. Mixed indoor/outdoor. Almost 10 weeks from seed.

It was extra hot yesterday for San Francisco and these burns show up literally overnight.

From picture guides, they kinda look like a Boron deficiency, but it seems strange to come on so suddenly.

Any insights are welcome.

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[Maraconi]

Apologies if this is the wrong forum. Put it here instead of the Infirmary as I’m doing a supersoil/water approach. Mixed indoor/outdoor. Almost 10 weeks from seed.

It was extra hot yesterday for San Francisco and these burns show up literally overnight.

From picture guides, they kinda look like a Boron deficiency, but it seems strange to come on so suddenly.

Any insights are welcome.


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That looks like a phosphorus deficiency to me and it makes sense since youre in the flowering stage.

 

[Littlefunions]

@Maraconi Thanks. Just bought some seabird guano. Hope this works.

I was surprised by how fast this came on. Came back home tonight and it had spread to even more leaves.

I guess there must’ve been signs and I just missed them.


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