ChuckFinnl3y
- 158
- 63
That is good to know i was planning on trying to use VPD as a methode to introduce light stress somewhat in the far future I'll try to remember that tresholdI haven't had mature plants do well at a VPD higher than about 1.30. Chlorotic or necrotic leaf tips are the predominant symptom of a too-high VPD. That optimal range also depends on the stage of growth.