My 'White Swan' are a clear, bright white.

Do you live in the deep south or southwest? I would expect the albinos
to appear more white in hotter climates. Also, 'White Swan' tends to be
more white than 'Alba' and some of the others.

Micah Mabelitini

I'd agree with Vic - my 'White Swan' is a true bright white, bloomed all
summer and is quite vigorous. And I certainly do not live in a hot climate.
Personally, I find the purple and pink forms rather insipid - very washed
out in tone.

pam - gardengal

My purple ones are picture perfect for most of the summer, getting
that washed out color only at the end of the growing season.
They are listed as drought tolerant and I've found that's what they
like best - well drained soil and just enough water to keep them
alive. IMHO, too much water seems to affect growth & appearance.

Enuf