The convenience of it all Because of its tall stems and wide spread, knautia, whose name is pronounced "not-ee-ah," is not an ideal plant for the meticulous gardener. This plant has the potential to invade other parts of your garden. However, it has a flowering season that is relatively long, lasting from early summer to fall, and it produces fascinating and lovely pink to deep-red blossoms that resemble a pincushion. It also has green foliage at the base of the plant and up the stem of the plant. This plant, which belongs to the scabiosa family, is attractive to butterflies yet unattractive to deer.