Bright green leaves

[AmberSheyRobinson]

Over the last two days I’ve noticed my upper leaves turning BRIGHT GREEN on the inside. It’s mostly just upper leaves like the new growth and only on two plants. I’ve never seen this before or had this happen. I was told possibly sulfur or nitrogen deficiency?

 

[spek9]

This is an immobile nutrient issue. Nitrogen is mobile, and an N deficiency almost always starts from the bottom of the plant.

This looks a lot more like Iron deficiency. Iron is immobile, which means that the deficiency will always show up at the new growth at the top of the plant.

Iron deficiency is often caused by too high pH, and over watering, both causing lockout. There are other reasons of course, but those are the two primary ones. Since your plants have no indication of over watering, I'd say that's not the cause.

What nutrients are you providing the plants? What is the pH of the water/nutrient mix? What medium?

 

[AmberSheyRobinson]

Honestly the only nutrients I provide are in the soil. I’m not sure the ph of the water I just use my well water (lol) and I haven’t fertilized. I use ocean forest soil. This is only my second grow but the same strains as my first and I never say this! But to me sulfur deficiency is hitting all the symptoms on the head.

 

[TreeFarmerCharlie]

Honestly the only nutrients I provide are in the soil. I’m not sure the ph of the water I just use my well water (lol) and I haven’t fertilized. I use ocean forest soil. This is only my second grow but the same strains as my first and I never say this! But to me sulfur deficiency is hitting all the symptoms on the head.

5 gallon pots of Fox Farm soil aren't going to provide enough nutrients for a plant for more than a month.

 

[AmberSheyRobinson]

5 gallon pots of Fox Farm soil aren't going to provide enough nutrients for a plant for more than a month.

Tree Farmer Charlie! Yeah that’s what I’m starting to realize Like I said this is only my second grow. I kind of just let them do their natural thing. But maybe it’s time to up my game! I have a friend coming tonight with some supplies and will hopefully teach me a thing or two. Thank you for your replies!

 

[CannaCountry]

Fe and Sulfur are not something the plant must have boat loads of. If you're seeing this issue and I agree with @TreeFarmerCharlie , you're most likely seeing it because of pH, not because there's no Fe or sulfur in your mix. It may be time to start knowing what your pH is. Good luck.

 

[AmberSheyRobinson]

I have a pH probe coming tonight! What would the reason be for only two of my four plants doing this?

 

[TreeFarmerCharlie]

I have a pH probe coming tonight! What would the reason be for only two of my four plants doing this?

Different plants have different requirements and sometimes even different plants of the same strain that were grown from seed.

 

[AmberSheyRobinson]

That was my instinct. Well, thank you for all your help and taking the time to check out my photos and questions!