A mat forming perennial that only grows to about 1.5cms in height and will spread to indeterminate width by taking root at the nodes. This is a ground hugging plant that has with tiny, rounded dark green leaves. Blue/white, star-shaped flowers are borne in abundance from spring to early summer and they almost cover the foliage with flowers. It looks great planted around pavers or stepping-stones. This plant can become invasive, so keep an eye on it. Moist to wet soils with high fertility.