Help with Yellow and purple leaves

[Nitsuga90]

I have this sativa at the 7th week of flowering. Nutrition with pk bloom and pk boost. Ph 6.6 EC 2 .I made a roots flush and continue watering with nitrients. Idk why Almost all leaves turned yellow and purple. Needa more P?

 

[SofaKingHigh]

What’s your temps at? Also what exact nutrients are you using and what are you growing in?

 

[Nitsuga90]

Temps between 26-28 °C, Im growing in soil, nutrients are growth technology ionic bloom and pk bloom.

 

[mysticepipedon]

I think it's a lack of nitrogen. When you flushed, that's what you flushed out and from the sound of it, PK Bloom and PK Boost don't contain any N, or very little.

That plant has at least 4 weeks to go. This is no time to flush

 

[Imzzaudae]

Plant looks great, Nothing wrong here. You may have flushed it a little early, it's stripping it's nitrogen. I'm thinking purple leaves are temp related. Don't change anything. It's doing what it is supposed to be doing. Just keep it watered and leave it be. Do not over water and let her finish up. Nice job!

 

[Nitsuga90]

I made a flush because soil EC was 4..so I will continue like that and add extra N. Thanks

 

[mysticepipedon]

I made a flush because soil EC was 4..so I will continue like that and add extra N. Thanks

That looks like a very interesting plant, BTW. What is it? I'm a major fan of powerful sativa doms.

 

[Nitsuga90]

Jamaica sativa, bob marley seeds. 100% sativa. Grows fast and takes time to harvest, but worth it)

 

[Imzzaudae]

I made a flush because soil EC was 4..so I will continue like that and add extra N. Thanks

Keep in mind that this plant is finished growing and needs very little nitrogen. I would suggest that you just let it finish up.
The plant looks right on! I think the worst thing you could do is shock it with a bunch of N. I'd consider cutting out the P and K as well. Just water. Let it finish stripping.
It's a very nice plant and will smoke great if you let it strip itself, then carefully dry and cure it.