Community Forum — Page 14
Threads 261–280 of 365, newest first.
Leaves turning purple — problem or genetics?
Week 7 of flower and my fan leaves are turning deep purple. Nighttime temps are around 60°F. Is this a problem or just fall colors? The buds look healthy.
Calcium deficiency in coco — brown spots everywhere
Running coco and getting brown rust-colored spots all over mid-canopy leaves. Looks like calcium deficiency from what I've googled. Already adding CalMag at 2ml/gallon. Not enough?
Foxtailing buds — is this bad?
My buds are growing weird spire-like towers from the top of the colas. Some people say this is "foxtailing." Is this genetic or environmental? Does it affect potency?
Root rot in DWC — brown slimy roots
Pulled my net pot to check roots and they're brown and slimy instead of white. Reservoir water smells bad. Plant is wilting despite being in water. This is root rot right? Can I…
Hermaphrodite plant found — what do I do?
Found banana-shaped growths (nanners) on one of my 4 plants in week 6 of flower. The others look fine. Do I remove just the bananas? Remove the whole plant? Will it pollinate the…
Light burn vs heat stress — how to tell the difference?
Top leaves are yellowing/bleaching but the plant isn't wilting or drooping. Tent temp is 78°F which seems fine. Light is a 300W LED at 12 inches. Is this light burn or something…
Stunted autoflower — week 5 and only 6 inches tall
My autoflower is 5 weeks old but looks like a 2-week-old plant. Only about 6 inches tall with minimal branching. Already showing pre-flowers. Did I stunt it? What went wrong?
PH keeps dropping in my DWC reservoir
Running DWC hydro and my pH drops from 5.8 to 4.5 within 24 hours. Constantly adjusting. Using General Hydro pH Up but it won't stay. What's causing this?
Bud rot found on one cola — is the whole plant ruined?
Doing a routine check and found gray fuzzy mold inside my biggest cola. The bud was brown and mushy inside. Is the rest of the plant safe? Should I harvest everything now?
Nutrient burn or deficiency? Can't tell the difference
Seeing brown spots AND yellow tips at the same time. Some leaves have burnt tips (nutrient burn?) but others are yellowing from the bottom (deficiency?). How can both happen at…
Slow growth after transplant — been 5 days with no change
Transplanted from solo cup to 3 gallon pot 5 days ago. Plant hasn't grown at all since. Leaves look OK but zero new growth. Did I damage the roots?
Leaves clawing downward — nitrogen toxicity?
My fan leaves are curling downward like eagle claws. The leaves are also very dark green, almost black-green. Currently feeding full strength General Hydroponics Flora series. Is…
Organic vs synthetic nutrients — honest comparison
Organic: slower release, builds soil biology, better terpenes (many claim), harder to burn plants, more forgiving of mistakes. Synthetic: faster uptake, more precise dosing,…
The importance of dark periods — do plants need sleep?
Yes! During dark periods, cannabis processes the sugars created during photosynthesis. This is when significant growth happens at the cellular level. 18/6 is preferred over 24/0…
Cannabis companion planting — which plants help your grow?
Basil repels aphids and improves flavor (unproven but popular theory). Marigolds repel pests. Clover fixes nitrogen in soil. Chamomile prevents fungal disease. Lavender attracts…
How to build a mother plant room
Keep mother plants in veg permanently under 18/6 light. Use a separate space from your flower room. Feed lightly — you want healthy growth, not explosive size. Take clones every…
Week by week flower guide — what to expect each week
Week 1-2: stretch, pistils appear. Week 3-4: bud sites forming, flowers stacking. Week 5-6: buds fattening, trichomes developing. Week 7-8: buds dense, trichomes cloudy, pistils…
Pre-flower stretch — how to manage height explosion
The stretch happens in the first 2-3 weeks of flower. Most strains double in height, some sativas triple. Management: supercrop tall branches, raise lights, use LST to bend tops…
Switching from soil to coco coir — what changes?
Coco is hydro, not soil. Key differences: water more frequently (1-2x daily when mature), always add CalMag, pH to 5.5-6.2 (not 6.0-6.8), feed every watering (no plain water…
Understanding runoff — what your plant is telling you
Runoff is the water that drains from the bottom of your pot after watering. Test the pH and EC/PPM of runoff. If pH drops significantly (input 6.5, runoff 5.2), there's salt…