plant turned purple and yellow!!...plz help

i have in one of my spots outdoors 2 females a few feet apart.. the one seemed to bounce back nicely with lush green foliage. but the other one hasnt gotten any bigger in a while and all the leaves are very droopy and very yellowish green to yellow. also, much of the main stem has turned purple along with most leaf stems.i have watered them with a 10-60-10 flowering fertilizer with 1 tsp/ per gallon of water because i thought it might of been a Phosphorus deficiency....but i would greatly appreciate anyones input or helpful comments...

Man, without pics hard to say. Nitro def shows same symptoms. Iron def similiar to nitro except yellow starts at stem/leaf apex rather than outer edges. Whats you PH? It could cause deficiencies no matter how much you fert. Can't be vague about the complex chemistry of plants.

Hello

well, thanks for your sarcasm at least..i know it would help w/ a pic but i tried to explain it good enough the first time..my camera got jacked...

Hey man, I'm not being sarcastic. I gave you 3 possibilities. I just can't narrow it down without more details. What's your PH? Which way are your leaves yellowing; at the apex or edges?

oops! Maybe you meant Dutchy. It is kind of funny.

its yellowing all over..and im dont know the ph of the soil..but i dont think that has anything to do with it anyway cuz the plant next to it it doing just fine..

How close Next to it is the other Plant.?.

the reason I ask Is the Stronger looking Plant May be strangling the weeker ones roots.?.

Thats what I was thinking.The stronger plant always wins.