The baptisias have never been as beautiful as they were this year. I am adding even more, as they are easy to grow from seed (although one must be patient -- they are usually at least 3 years old before they start blooming), and my planting scheme to thwart the voles has worked. I use 2-3 gallon plastic pots with the bottom cut out and mulch the top with gravel. It's been 4 or 5 years, so I feel confident stating success.
These pictures are from the first week of May. This year there was a span of 5 weeks from the bud stage (beautiful in itself) to the time the flowers finished up a few days ago.