Foxtailing? (Heat/Light Stress vs Genetics)
Skinny stacked calyxes can be from genetics or too much heat/light late flower.
Foxtailing buds? Check heat/light vs genetics—analyze fast.
Common Causes
- PPFD too high late flower
- High canopy temps
- Genetic sativa traits
- High RH causing stretch
How to Tell Which One You Have
Heat/light foxtails usually bleached tips + hot spots; genetics stay healthy green.
FAQ
Fix?
Lower PPFD/heat; ensure airflow.
Is it bad?
Quality drops if heat/light stress; genetic foxtails are mostly cosmetic.
Affects yield?
Stress foxtails airy; genetics acceptable.