B burnonehomie Member Jan 31, 2010 #1 The bottom 3 rows and biggest fan leaves are slowly turning yellow. What might cause this? I have a 260 watt HPS about 18-20" from the plant.
The bottom 3 rows and biggest fan leaves are slowly turning yellow. What might cause this? I have a 260 watt HPS about 18-20" from the plant.
GoldenGanja13 Well-Known Member Jan 31, 2010 #2 If you plant is tall and you are in flower I would say, lack of light and natural occurence due to she is taking up more P/k
If you plant is tall and you are in flower I would say, lack of light and natural occurence due to she is taking up more P/k
DoeEyed Well-Known Member Jan 31, 2010 #4 Without more detailed info and pics, I would guess it needs more nitrogen.