Fan Leaves Yellowing From Little Or No Light?

Cpappa27

Cpappa27

Well-Known Member
Plants are real bushy and vegged for 2 months. Under 300 watt led. The whole plant looks amazing except for a few big and small fan leaves turning yellow at the bottom. I just flipped them to 12/12 two days ago. They are so bushy that the bottom of the plant receives very little light. I was just wondering if the little light at the bottom will make the fan leaves yellow and fall off, cause I know they are deficient in anything. The are dark green everywhere else and thriving. Is it something to worry about or am I being paranoid?
 
lilroach

lilroach

Well-Known Member
A plant decides what leaves it needs and doesn't need. It's common that a plant will discard older fan leaves, especially near the bottom.

Don't jump through hoops attempting to get more light to the lower leaves, especially defoliating upper leaves as these leaves are valuable in bud growth. There are a ton of myths regarding this subject.

Between you and the plant, the plant is the smartest one in the room when determining what leaves it needs.
 
Cpappa27

Cpappa27

Well-Known Member
HeartIandhank said:
OP. What are you feeding your plants?
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Full line or organic Humboldt nutrients according to their feed schedule but theirs only goes to 4 weeks veg on their site and mine are at eight weeks so I'll start giving more than what they reccomend as full strength. The soil is a recipe that DannyBoy have me a while back.
 
Diabolical666

Diabolical666

Well-Known Member
I shape my plants to fit my canopy. I'll trim them back when I see potential stretch, lollipop and lst. Lollipopping was picked up by apple growers.. they trim bottom weak and spindly branches because it gives more energy to the top prime fruits (in our case gives energy to top buds). Imagine the plants main stem...everytime it branches out its giving energy to the new branch or sprout and taking away energy from the tops. This is why we remove everything at the bottom because its not getting enough light and energy. Tight nodes and less bud sites is what you want. If I had a plant 4ft tall shaped like a pine/christmas tree and cut the top of the main stem off 2ft what would happen?
 
Cpappa27

Cpappa27

Well-Known Member
Diabolical666 said:
I shape my plants to fit my canopy. I'll trim them back when I see potential stretch, lollipop and lst. Lollipopping was picked up by apple growers.. they trim bottom weak and spindly branches because it gives more energy to the top prime fruits (in our case gives energy to top buds). Imagine the plants main stem...everytime it branches out its giving energy to the new branch or sprout and taking away energy from the tops. This is why we remove everything at the bottom because its not getting enough light and energy. Tight nodes and less bud sites is what you want. If I had a plant 4ft tall shaped like a pine/christmas tree and cut the top of the main stem off 2ft what would happen?
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So is that why they are yellowing cause light isn't reaching the bottom leaves ?
 
Cpappa27

Cpappa27

Well-Known Member
Diabolical666 said:
Could be a few reasons why they are yellowing
1. lack of light
2. N cal mag deficiency
3. hungry hungry hippo
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If they were root bound would that happen too. There's two plants in the tote and it's an 18 gallon tote and both plants are two months old and just flipped to flowering . And if they are rootboind what do I do now that I ha e eight more weeks of flowering ?
 
Cpappa27

Cpappa27

Well-Known Member
Diabolical666 said:
WEll, you cant seperate them now. Just feed them and hope one doesnt rape the other of nutes
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So just feed them and water them more often. Feed Feed water? instead of water water feed? Its all complete organic nutes and the soil is amended with the recipe Dannyboy gave me.
 
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