Had the same problem last winter, turns out the soil was a little hot, but I waited and they eventually came out of it. Yours actually look better than mine did! I ended up with a killer harvest, just took longer.
Have a seedling popping up 17 days after I planted it, in soil. This is the longest one has ever taken for me. It is Skunk x Puck from Crickets and Cicadas. I always plant directly into soil with no presoak.
I have 33 of her strains and I have already had trouble getting seeds to sprout. The last one I tried was Double Diesel, which I had grown once before, and it was awesome! She definitely has/had some cool old genetics. Her Oaxacan Iranian was also really nice and finished in mid September.
I F2d some seeds and that is what I grew. 1 plant was pretty frosty and finished in mid September and the other plant didn't put on many trichomes at all, so I trashed it. It is the best sativa dom plant I have grown. I crossed it with ATF/Sodo from Dutch Blooms but only got about 30 seeds so...
Put a light on them for 3 or 4 hours every evening after you have put them outdoors, doesn't have to be very bright . Like a porch light. When they get to the size you want, discontinue the supplemental light.
This thread is 3 years old, I bet nothing came of it. I have a friend who made a cross using Black Rose, most of the plants would be very dark regardless of the temps. We grew some about 4 years ago, outdoors. I believe the other half of the cross was Grape Crush from DJ Short.
I think the color expression is genetic in this case. I know I am further south, but my PTKs always seem to finish fairly early outdoors. I didn't time the seed run plant I did indoors about 4 years ago. Also, I had plants that were dark colored early in flowering.
Most dispos in Ok have their top shelf at around $6 a gram. Atlas has some $10 a gram stuff. I can get some good Mac 1 for $6 a gram. But I prefer my own.
You bet! They will be short squat plants. I didn't top mine and they were about 2 feet tall, after vegging about 50 days, I harvested at 65 days. I did have a bit of an issue with the soil that slowed them down a bit early on, though.
Classic indica! Smoke a small amount and it is actually inspiring and motivating, smoke a bit more, and relax and sleep well. I just started his Puck x Skunk. I would grow anything by this guy with the highest confidence! One of the best strains I have grown.
Later flower can be more sedative, but it is mostly genetics. An early indica will still be more sedative than a late sativa, generally. Can't hurt to try though!