Echinopsis...but which?

[Dixie Chicken]

I received this little plant as a teeny tiny seedling in April of 2013 and have been patiently waiting for it to grow big enough to flower so I might have a shot an identification. I'm pretty sure it is an Echinopsis, but can't seem to get any further than that. Can anyone help? Many thanks as always!

As a side question, would a shot of pH adjusted balanced fertilizer help this follow green up? Seems healthy, other than a bit washed out. He's in a 3.25" pot, just for reference.

Carol

Nov 2014

Nov 2014

June 2015

June 2015

July 2015

[phil_SK]

That's Echinopsis calochlora. They're always a bit yellow for some reason. You could try the fertiliser and see what happens.

[DaveW]

Meaning: From the Greek kallos (beauty) and chloros (green). The name is a reference to the green colour of the body as they usually seem to be a lighter or yellowish green than other Echinopsis:-

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You could try a little of a higher nitrogen fertiliser if you think it is a little too chlorotic. Any fertiliser designed for normal plants should have enough nitrogen.

[Dixie Chicken]

Thank you phil_SK and DaveW, I really appreciate the guidance. Nice to be able to put a name to another unknown in the collection!