Primula (polyanthus type)
The Polyanthus group of primroses, with their sturdy stalks and dense umbels of flowers, are a tribute to the hybridizer’s art. They are assumed to have arisen from crosses between P. vulgaris and P. veris. And they look perfectly at home growing side-by-side with their parents and other wildflowers. These primroses are hardy and easy to grow, and while they do need division every three years, they are worth it for the marvelous range of colors they bring to the garden: deep garnet-red to purple, rich butter-yellow to white, and heavenly shades of blue and pink.
-Sydney Eddison, It's Primrose Time, Fine Gardening issue #72