Plants are not injured by temperatures as low as zero, but in lower temperatures they require protection. They may be grown in cool, sunny greenhouses, but they blossom best with outdoor planting. The plant may be set out at almost any season—but early spring is best—in gravelly loam or among rocks, with care not to injure the root or stem. The seed grow readily in sandy loam in pots or flats, in diffused sunlight, with just enough water to keep the soil moist. In cactus gardens the plants should be given only enough water to keep the soil moist during dry spells, and growth should not be forced. Salmon Flowered Hedgehog Cactus (_Echinocereus Leeanus_) (Named _Leeanus_ in honor of James Lee of England, who presented the type specimen to the Royal Botanic Gardens at Kew about 1842) How to identify and how it grows The _Leeanus_, or Salmon Flowered Cactus, is identified by the general characteristics of the entire Hedgehog Group. It is cylindrical, with the stems tapered toward the tips, about four inches through near the base, and with ten to twelve rounded ridges with acute apexes. Along these ridges the usual system of spines is placed, with the shorter ones radially arranged and very sharp. These radial spines are unequal in length and are spreading from their bases, while the centrals are stouter, the lowest two inches or so long, all thorns having bulbous bases and a tannish brown color scheme, toning off to gray. The flowers are among the largest of the salmon or scarlet forms—when opened, about the length of a large egg—and have twenty-seven broad thick petals, the tips well rounded; or the petals may be notched or tipped with a short point. The general colorings are from orange-red to a flaming salmon; hence the common name. There are many stamens of about the same length as the style and stigmas. The style branches are light green and are incurved. The stems of this cactus grow singly or in loose clusters, and thrive well in sandy or gravelly loam. How to grow Little is known about growing this species under cultivation; it transplants readily at almost any season and thrives in sandy or gravelly loam with occasional irrigation to keep the soil moist during dry periods. It may be grown outside in temperatures not below twenty or twenty-five degrees of frost; in colder weather it should have protection. It grows well in cool conservatories, but does not blossom freely there. Rose’s Hedgehog Cactus (_Echinocereus Rosei_) (Named for Dr. John Nelson Rose, Associate in Botany, United States National Museum, Washington, D. C.) How to identify and how it grows