Ice has been a favorite strain for years but unfortunately, I won't be growing it again because of it's susceptibility to powdery mildew. I did an outdoor grow of Ice 7 or 8 years ago, 1 plant that was heavily topped. It became a monster, 6' high and 5' in diameter. The yield from that single plant was 3 pounds. Fortunately, it was a relatively dry summer and I didn't experience any mildew or mild issues. So needless to say I was excited to grow it indoors. At around week 5 I noticed the powdery mildew and with daily treatments of a mist of 1 tablespoon baking soda to a quart of water, I was able to keep the mildew in check and prevent it from infecting too many buds.
The plants were grown in an 8 pot RDWC system using Cultured Solutions nutrients. It was a fairly aggressive feeder, topping out at about 420 ppm （500 scale）. A slight mag deficiency was cleared up quickly with a little supplement of epson salts. Humidity was kept below 50% and additional air circulation was employed to help keep the mildew in check.
While the indoor yield wasn't anything like that outdoor plant, it was still very good, considering the plants were vegged to 24" and topped out at about 3 1/2'. Average yield was 5 1/2 ounces per plant, with one plant giving over 8. These were grown from seed and 3 phenos were observed. One was larger with bigger buds, the other had similar buds but slightly smaller. The third pheno had much smaller buds and foxtailed heavily. I had two of this pheno and they only averaged 4 oz. per plant, dragging down the overall average.
With the exception of the mildew, this a great plant with a fine indica smoke.