This section is from the book "Commercial Gardening Vol2", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
A pretty rock plant, 6 in. high, with creeping habit, tufts of spoon-shaped leaves, and drooping white flowers veined with blue from June to September. Other species are dalmatica, graminifolia, Pumilio, serpyllifolia, etc, with violet or purple flowers, and all about 3 or 4 in. high. Increased by seeds.