purple stem

[icegrower]

hey there...i got an indica dominant strain, and im growing it in dwc system, and it is in later stages of flowering.
and i just noticed the main stem has turned DEEP purple in color, and ive grown this strain many times in soil and the stem is always bright green then.

ive seen of course litle purpeling in strains before but nut this strong...
is this something to be worried about, or what can cause this?

in all aspects the plants are robust, strong and healthy and looking quite sweet

any answers will help

 

[CasualGrower]

Pictures would help 8).

 

[icegrower]

thanks for your replies, i think it must be a cold shock of somesorts...the ph, ppm and everything is just right..but temp of the water did dropp some few days back.

yepp hoping for a camera this xmas

so this is probaly nothing to fear, since temp is back to its right temp..
best regards

 

[andy52]

i have an ultimate indica that was gifted to me and the stalk is deep purple,since i got it and as it grows.strain dependent.

 

[icegrower]

yea i know some strains tend be be more purple and such...but i was wondering about this caus id grown this strain many times before, in soil that is, and it never turned purple in those grows