shnibbles Reviewed by shnibbles on . First 2 leaves (spear leaves) turning yellow. Sign of nutrient deficiency or..? hi, just started my first grow. i'm 2 weeks in now, started from seed. recently the first 2 leaves (not the cotyledons) are turning pale/yellow, but the new foliage looks nice and green. i know the cotyledons are supposed to turn yellow and die, but how about the 2 leaves that come after? is this the first sign of nutrient deficiency, or being root bound? over/under watering? enviromental problem? this is happening on all 6 seedlings. today i transplanted them from 16oz solo cups to 2 Rating: 5