Possible Phosphorus Deficiency?

Nutrients
1

Some Basic Info

  1. First time grower
  2. Happy Frog Soil with 15% coco added.
  3. Auto OG Kush
  4. 16 days since sprout

Greetings,

I am keeping a pretty close eye on my lady and I’ve noticed that although the leaves look nice (to a novice anyway) some of the petioles are purple or purple/brown. Also, the plant isn’t terribly tall either, but as a first time grower I do not know how tall it’s suppose to be at 16 days. I’ve attached a couple photos.

I have yet to feed my plant and have only watered with distilled water.

I’d love some insight into this possible issue. I have read that phosphorus deficiency can sometimes show up as purple stems. Perhaps I’m a helicopter parent, but I’d rather be safe than sorry.

To give some scale to the attached pictures, I’m using a 5 gallon pot, and the plant is about 4" tall, 5" at most. The pics were taken with only daylight LED’s turned on and a single 8w burple grow light. My main LED was off.

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Thanks in advance for any info you can provide.

2

The purple stems are sometimes in the genes. Never used foxfarms products but I believe that they provide enough nutrients for the first month of their life. Plant looks good by the way

3

@Fool1977 she’s showing no deficiency. The stems are sometimes that color. I have several that this way.
Everything looks great!

3 Likes
4

Pretty sure the purpling on the petioles is a sign of a maturing leaf. Your plant looks great man. Wouldn’t change a thing. I might try to keep an eye on your runoff ph just in case though. Do you have a ph/ppm meter?

5

It looks like your plants are growing well. Later when you get into heavy feeding with your nutes you may consider adding some cal/mg. Most nutes are formulated with CalMg though.

6

Thanks for the quick replies! I’ll keep my eye on things, but judging from the comments things are going pretty well.

7

She is beautiful! IMO

8

Defs are usually on the leaf itself. They look great. My NL and JH have purple stems

9

No problems with the plant mate, looking nice :+1:

10

Thanks for the nice words! Let’s hope it looks good all the way through.

1 Like
11

Well if you have any problems you know where to come.

12

I think it looks perfect :sunglasses: :facepunch:t2: