dark blue northern lights???

I pollinated one of my 'Nirvana' NL and about half of the new plants are very dark. Is this a pheno I should be looking for?

This might be a silly question. How much N are the plants getting?

using bio-biz flowering for the last 7 weeks, the aroma is like blueberrys..

Didn't see an answer for ya yet. From what I read when your plants grow dark in color its usually a sign of over feeding. A properly fed plant should have a green of this color.

Never heard of them turning Dark blue though. If it smells like BB's maybe it was a cross. I know when in flower if you set the temp low like 56-58° in their dark time for about 3 weeks it'll make the buds turn purple.

Jeffdogg said:

Didn't see an answer for ya yet. From what I read when your plants grow dark in color its usually a sign of over feeding. A properly fed plant should have a green of this color.

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that looks like a lot of perlite man

Different strokes for different folks bro, I water them about every 4 days. I dont think some extra perlite is gonna kill my plants (never heard of over perliting lol)
Hasn't yet at least, my plants keep growing by the hour and look healthy and happy.

Edit: Thats just the top inch or so for each pot anyway. Had some extra perlite after transplant.

Well the first 'blue' has been cut and dried, still has the blueberry scent, very nice. Several more to go, I'll try to get a pic uploaded in 2009.
The night temps. have been getting into the mid 40's for the last couple of months, but I have about 50/50 dark buds. Only the resin areas get the purple tint, fan leaves and outer tips of smaller leaves are still green.

hmm im kinda tempted to set my Nirvana snow white so the fan is running 24/7 so the temp will get lower... so maybe they will turn blue but im not sure if its a good idea?and im excited to see your pics.

If the temp can get to like 57-58° with the fan at night sure, just remember it takes a few weeks for the buds to turn.

My Grapefruit turns red at cool temps. I do this just for the cool color.

hmm well i have like a month of flowering left.. so i think ill give it a shot.. i think snow white being bluee/purple would look rather cool and im sure people around here would Loveeee itt.. im just worried about it getting Tooo coold at night.. ill have to get a thermometer. or try it and just be there right when they wake up to see how cold it gets.. but thats realli cool does anyone know what color snowwhite/white widow would turn..? blue purple. or redish?