|Bicolored with picotee|
|Semidouble dianthus x allwoodii|
|Fringed pure white|
|Simple pink bicolor|
|Another cool patterned flower|
|Simple pink bicolor closeup|
|Variety of x allwoodii seedlings|
|Fringes and rings|
The first two photos are cultivars of Dianthus deltoides, these form low mats of deep green minute foliage and can spread slowly. Apparently they have naturalized in some places in the US, but this is not a scary invasive species at all. The seeds are smaller than the hybrid dianthus and they flower mostly in spring but will make more flowers later on, especially if deadheaded. The remaining photos are of Dianthus hybrids, probably/mainly of the x allwoodii type. They have several species in this bloodline and this complex gene makeup results in a very varied group of plants. Leaves can be varying degrees of blue green to grey green to simply green and the flowers range from white to red, singles to doubles, and come in all kinds of shapes and color patterns.
Seed is both easy to collect and easy to start. Germination is straightforward, no cold period needed, and some plants may produce a few flowers their first year if started early. Once you have a colony of them going, its easy to collect seed and even broadcast it to get more plants.