Jaw droppingly stunning colors ... I have had a
E. rigidissimus for four years now and the difference in size between what it was when I got it and what it is now, is depressingly unspectacular.
This is what it looked like in 2013
I don't have a coin in the second picture for scale, so I have to use a different method. If you count the areoles from top to bottom in this picture, you'll get about 11.

- 016.0 2013-07-29 Echinocereus rigidissimus rubispinus.jpg (104.48 KiB) Viewed 6223 times
And this is what it looks like in a picture taken this month.
If you count the areoles from top to bottom in this picture, you'll get about 28. So you can see, it has not put on a lot of growth in 4 years.

- 016.1 2017-11-11 115140.jpg (121.82 KiB) Viewed 6223 times