Germinating Red or White Yarrow

I ordered a white yarrow and a red yarrow packet of seeds. I treated them the same. The white ones germinated, but the 2-3 attempts to get the red ones to germinate have not succeeded. Is there some trick to get the red ones to germinate?

There is no seed cultural difference between the Red Yarrow and the White Yarrow. Try sowing them again, but do not cover them with soil, or only lightly cover. The medium must be kept damp, and germination should occur in a week to ten days.