Purpling on leaf? Deficiency?

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budchemist

Active Member

• Jun 21, 2018

• #1

I am 4-5 weeks into flower with 3 plants. Each of the plants have had about 5-6 large fan leaves that have yellowed and that I have removed (no concern here). On one plant I have noticed 3 leaves that have yellowed and have a purplish colorings. Otherwise the plant looks healthy.
Question whether it is phosphorous deficiency. I have been careful not to over nute the plants and feed weekly but not at full strength.

Thoughts?

 

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Ringsixty

Well-Known Member

• Jun 21, 2018

• #2

Take a picture with light off.

 

hotrodharley

Well-Known Member

• Jun 21, 2018

• #3

What medium are they in?

 

whitebb2727

Well-Known Member

• Jun 21, 2018

• #4

Bloom nutes.

 

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budchemist

Active Member

• Jun 22, 2018

• #5

Here we go. Should be a lot better now
They are in soil. Potting mix and peat moss mix

 

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whitebb2727

Well-Known Member

• Jun 22, 2018

• #6

budchemist said:

Here we go. Should be a lot better now
They are in soil. Potting mix and peat moss mix

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What nutes? Back off the bloom.

 

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budchemist

Active Member

• Jun 22, 2018

• #7

3 weeks ago I used miracle gro ultra Bloom and then switched to morbloom 0.10.10

 

whitebb2727

Well-Known Member

• Jun 22, 2018

• #8

budchemist said:

3 weeks ago I used miracle gro ultra Bloom and then switched to morbloom 0.10.10

Click to expand...

That's what did it.

 

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budchemist

Active Member

• Jun 22, 2018

• #9

whitebb2727 said:

That's what did it.

Click to expand...

Thanks so much for the answer.

 

whitebb2727

Well-Known Member

• Jun 22, 2018

• #10

budchemist said:

Thanks so much for the answer.

Click to expand...

No problem.

Stay away from the miracle grow bloom. Use the microbloom or what ever only as needed.

I generally like to run a pretty close to even NPK. Only use bloom boosters if you get a strain that needs it.

Switching to bloom feeds early is what causes a lot of yellowing and other colors.

It shouldn't hurt it. Just don't go heavy on it again.