The vibrancy of the blue is directly related to when the dye is injected into the spike. If the dye is injected after the blooms have opened the flowers will turn an almost electric blue color.

It is considered an annual in our area. Common cultivars are Victoria Blue or Blue Bedder. The individual flowers of a salvia ...

I have seen seeds on the market but it will take a couple of years for the plant to develop and flower. Gayfeather grows as a spike and will range in height from a few feet to 4 or more feet ...