Purple Stems? (Cold, Genetics, or Stress)
Purple stems can be normal genetics, cold temps, or stress/nutrient issues.
Purple stems cannabis? Distinguish genetics/cold from stress—analyze fast.
Common Causes
- Genetic coloration
- Cold night temps
- P/ Mg issues
- General stress or shock
How to Tell Which One You Have
If growth is healthy and green, likely genetic/cold; if leaves pale/spotty, check P/Mg/stress.
FAQ
Is it harmful?
Genetic purple is fine; stress-related needs fix.
Warm nights help?
Yes if cold-induced.
Add P or Mg?
Only if other deficiency signs present.