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 large genus closely related to Antennaria, having a few species of garden value. G. lanatum is remarkable for its fine silvery foliage and dwarf habit, and is used as an edging for beds and borders. G. microphyllum is used in the same way, but has very small crinkled silvery leaves. The "Edelweiss" is G. Leontopodium (or Leontopodium alpinum). It is easily raised from seeds sown in spring, and small plants in pots find a ready sale.