I have been growing this strain for three years now and it's one of my favorites. I usually grow ten plants and 5 of them are always LSD and then I toss in whatever freebies I've gotten along the way.
I LOVE Barney's LSD. It's listed as an Indica but out of 5 seeds I will usually get 2 or 3 of the Sativa dominant pheno that rippin13 was describing. The Sativa dominant pheno definitely has a good stretch. The strech never bothers me, LSD is a beast and I will supercrop her during flowering if need be. The Sativa dominant pheno is a little harder and more picky to grow, imo then the Indica pheno but both are easy to grow overall. The Indica pheno is a beast, she can take a beating and is really good for beginners. I usually flower the Indica Pheno for 9 weeks and the Sativa dominant pheno to 10 weeks. She doesnt seem to be bothered by supercropping during flowering and doesn't slow down.
Both phenos are strong yielders, easy to grow and great for beginners such as myself. It's what I started on 3 years ago and I keep her in the rotation. I use hydro and I don't add much of anything to it. Dutch Master Advanced grow and flower and DNF Hydro Sparkle to keep my reservoirs clean. I add Black Strap Mollases to the res for week 7 for the Indica pheno and weeks 9 or 10 for the Sativa Pheno. I flush for two weeks.
The best LSD pheno I ever grew smelled like straight Diesel in the early part of flowering. Around week 6 she began to smell of lemon and serious sweetness. My other LSD grows all pretty much smell like lemon sweetness. I haven't gotten that diesel smell since but that particular pheno yielded me more than any of the other LSD's I've grown. I am always on a look out for that one. All of them are covered in trichomes, has great bag appeal and very sticky. I get lots of nice scissor hash from a trim.