Set plants in sandy or gravelly soil in sunny exposures, and give enough water to keep the soil moist. Sow the seed in June in sandy loam with enough water to keep the soil lightly moist, and give part shade. The plants grow indoors and out and will endure zero weather without injury. In colder weather they may be grown in dry sunny conservatories and indoor rock gardens. Green Stemmed Visnaga (_Echinocactus viridescens_—_Ferocactus viridescens_) (_Viridescens_ means “growing green”) How to identify and how it grows The Green Stemmed Visnaga is another of the single growths, from five to fifteen inches high and a foot or so in diameter, and with thirteen to twenty ribs of glossy deep green or medium green, wavy-crested, and fringed with eight to twenty grouped radial spines about three-quarters of an inch long, very stout and sharp; these radials are slightly curved, with translucent yellow tips and reddish bodies. The four central spines are a dull gray-pink, sometimes yellowish. The flowers are about an inch and a half in length and breadth, form a circle around the tops of the stems, and are bell-shaped with yellow petals which have a reddish purple midrib. The reddish green fruit is less than an inch long and has a pleasant acid taste. This plant grows along the beaches and foothills of Southern California and blossoms in May and June. How to grow Transplant at almost any season in sandy or loamy soil, and give moderate irrigation to keep the soil well moistened. Plants grow readily from seed sown in flats in sandy loam, with part shade and with enough irrigation to keep the soil moist. They grow outside and indoors and are not injured by twenty degrees of frost; in colder climates they may be grown in conservatories or given protection out of doors. Harem Cactus; Mound Cactus (_Echinocactus polycephalus_) (Named _polycephalus_ from the many heads or stems of the plant) How to identify and how it grows