Cactt and other succulents

is more popular or widely grown than the Common House-leek, S. tectorum var. calcareum, whose three-inch, gray-green rosettes have a pronounced brown tip on each leaf; or the huge six-inch rosettes of S. caicaratum, beautifully shaded and tinted with crimson and purple highlights. The list is really endless, for the sempervivums hybridize readily and the nuniber of fine varieties now available to collectors probably runs into the thousands.

Closely related to these hardy European sempervivums are a group of tender species native to North Africa and the Canary, Cape Verde, and Madeira Islands, : hey belong to four genera, of which the largest and most important is the genus Aeonium (ee-oh -m-um) ! he aeoniums are generally small, shrubby plants with woody stems topped with fiat or saucer-shaped rosettes of attractive succulent leaves. Their flowers are freely produced in late winter or early spring in huge pyramidal clusters of bright yellow, white, pink, or red; and. ¬°ike most members of the Senipervivum tribe, this flowering usually signals the death of the plants unless they have produced other branches or offshoots to continue growth,

Perhaps the best known of all aeoniums is the bush) A arboreum? which makes an erect three-foot shrub topped with numerous light green osettes and bright yellow flowers, It is one of the commonest and most popular succulents out of doors in mild climates, and particularly striking in the variety atropurpureum, with bronze-red leaves thai turn almost black in the sun. A. fiaworthii, with while flowers and blue-green leaves edged in red. and A. decorum with bright coppery-red leaves and pink flowers, arc two other shrubby species that are scarce!} half as large but equally well liked as polled plants indoors or out

Other aeonium species have very shori stems and either form small clumps or bear a single lar^e rosette at their tipA. caespitosum is a fine example of the clump-forming type. Its narrow green leaves, striped with red and bearing white

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