Everything right for my babies?

Ok i have about 20 plants growing outside now, most are in pots for now and theres about 6 or 7 in the ground in some regular soil from the ground mixed with some random potting soil and a little bit of miracle grow soil. I have 3 that are about 8 inches tall and they had white tips on the new growth but I researched and found to add epsom salt to watering to fix that and so far it has. One thing I am scared about is I just transplanted from pots to the ground and being my first time I know I fucked a few up, like on some all I have is half the roots, I know my mistake and found a better way to do it, but what I wanna know is will they be ok? I planted a couple of the plants really close together like 2 inches apart and Im also scared about that. My mom grew last season and she said she did the same thing and they turned out fine, but a friend told me that the roots will attach but I think hes BSing. So Im more than open to advice or critisizm, thanks for reading, just tell me how Im doin.

PS, one of my plants the leaves are starting to turn a blue shade, and Im really excited because Im thinkin I might've gotten ahold of Purple Haze or Blueberry of some sort? Im not sure.

white tips? sounds like a hardening off problem more than an epsom problem.

purple and blue is a normal color for weed, purple haze is extinct so good luck but it's not gonna happen, many many strains turn purple from cold temps.

as for planting them too close, outdoors this wont be a problem, hemp is planted in fields about 2 inches appart, the plants grow up to 14-16 feet tall, you can't see more than a foot into the field, just stems clacking on stems...you will have better luck if you train them to grow in different directions by tying the tops down after they get about a foot tall or so.

just because it's not purple haze doesn't mean it wont be incredible bud, some of the best weed i have smoked was grown by a friend with bagseed.

haha nice, ok thanks for your input, whats hardening off mean?