I found Sweet Spot 'Calypso' at Home Depot today of all places after striking out with every nursery in Seattle/Tacoma area and searching online such as Jackson and Perkins and Monrovia's online sales.

I found some at Fred Meyer just yesterday

I saw some of them with brown spots all over the leaves at Home Depot when this first came up. So the series name may be ironic. I suppose it being a hot climate species the parent used to get the bicolor flower may be a fungus magnet, I may have read this also.

Skip them! I bought two last summer and they should be called Black Spot instead of Sweet Spot. Sometimes I see them trying to sell them at Home Depot and tons of black spot on them -- what a great advertisement!

An expected outcome, as per my earlier comments - which I thought I made last year. Hence "when this first came up".