T. harrisii varies in pigmentation when exposed to high bright light versus one that gets normal lighting. More light means purple blush.
This species is really hardy and can tolerate less water due to the trichomes ( hair-like coating) on the plant. When touched, it has a velvety feel that works well with many designs.
The bloom spike is a spectacular showcase in its own too, exposing a green or pink bud with purple flowers and yellow stamens.