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Grow Questions

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GreenHillZone
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Solved
GreenHillZone
GreenHillZone
Autoflower light cycles - adjusting mid growAutoflowers can grow in pretty much any light cycle. What are your experiences with changing light cycles mid grow? I am currently around Day 24, running 20/4 but the humidity in my grow cabinet at lights off is very high. How would adjusting to 24/0 affect my plants now? Thanks!
Setup. Lighting
3 years ago
1
1
Solved
GreenHillZone
GreenHillZone
FIM'd autoflower - recovering ok or should I top it fully?Never topped or FIMd before. I topped this Jon Snow Autoflower by Cali Weed about 4 days ago. I was a bit too early to top and actually FIM'd it by mistake - is this growing back ok or should I complete the topping? It's growing weird, but I guess that's the point.
Techniques. FIMing
3 years ago
2
3
Open
GreenHillZone
GreenHillZone
Leaf discolouration ID - Cal deficiency or disease?Day 42 Auto. Leaves showing some mottled/rust colouration. Can't rub it off. Began at bottom leaves, intermittent throughout the entire plant. Maybe 5-10% of leaves have marks like this. The lower leaves are the worst, but the images I have included are from fan leaves near top.
Leaves. Color - Mottling
4 years ago
2
Open
GreenHillZone
GreenHillZone
Auto seedling developmentRQS NL Auto about 13 days since breaking ground. Started in peat pellet, potted up to 12L fabric pot day 7. Growth a bit slow, I think. New growth a bit gnarly looking. Does it look normal to you? I am a pretty impatient person, is it showing or is there cause for concern?
Plant. Other
4 years ago
1
Solved
GreenHillZone
GreenHillZone
PAR/PPFD and light heightPAR/PPFD: does light height matter if your PPFD is in the right range? Another way to ask: is 300 PPFD @ 2 feet the same as 300 PPFD @ 20 feet, or are there other factors involved? (assuming heat, C02, all other non light inputs equal)
Setup. Lighting
4 years ago
4
2
Solved
GreenHillZone
GreenHillZone
Dead seedling?Seedling 9 days since planting. Germinated directly in peat pellet. Sprouted after 4 days. Seed coat became stuck and I had to remove with tweezers. Now the cotyledons aren't developing and it looks a bit moldy at the top. Looked like this for the last 3 days. Thoughts?
Germination. Pellet
4 years ago
1
1
Solved
GreenHillZone
GreenHillZone
Nutrient burn or light damage?Burnt tips appeared around week 3. I think the bio tabs are a bit too hot for this plant. The plant is growing at a good rate so I don't think a lockout is occurring. Burnt tips across most of top of plant. Could this be light damage? How to proceed or do I even need to worry?
Leaves. Tips - Burnt
4 years ago
2
2