They form clumps of deeply divided, spiny leaves, which are gray-green above and fuzzy-white beneath. They produce round, compact heads of tiny pale blue or grayish-white flowers, resembling thistles, atop gray-white stems in late summer. Globe Thistles can live in any well-drained soil as long as it isn't too rich. They will survive in poor, dry soil. They should be in a position with full sun. These plants can be increased by seeds or division in the fall, or by root cuttings in the winter. Varietes: E. Ritro, E. Bannaticus, E. Gmelinii and E. Sphaerocephalus.