Imperial Valley settlers' crop manual . Fig. 51 -Four-year-old pepper trees. Quite satisfactory forornament and shade. Bulletin 210. IMPERIAL VALLEY SETTLERS CROP MANUAL. 251 profusely in Imperial Valley. About the only objection to it is thatit is poisonous to stock. It is also poisonous when eaten by children,but this rarely happens, as the leaves and flowers are exceedinglybitter. Several tamarisks have also been observed to grow well, espe-cially Tamarix hispida var. aestivalis. A large number of kinds ofCactus and Yuccas from the desert are, of course, available to thosewho fancy this typ
Imperial Valley settlers' crop manual . Fig. 51 -Four-year-old pepper trees. Quite satisfactory forornament and shade. Bulletin 210. IMPERIAL VALLEY SETTLERS CROP MANUAL. 251 profusely in Imperial Valley. About the only objection to it is thatit is poisonous to stock. It is also poisonous when eaten by children,but this rarely happens, as the leaves and flowers are exceedinglybitter. Several tamarisks have also been observed to grow well, espe-cially Tamarix hispida var. aestivalis. A large number of kinds ofCactus and Yuccas from the desert are, of course, available to thosewho fancy this type of ornamentals. The Squaw Bush, Lycium graci-lipes, is well suited to the country and makes a good growth, as doalso several of the salt bushes. Sweet Myrtle, Myrtis communas, growsvery well and is valuable either as a hedgeplant or as a lawn specimen,where it bears beautiful white flowers and attractive dark blue ber-ries. The Tuna, Opuntia tuna, grows well, of course, and may be usedboth for a hedge and for its Fig. 54.—Shade trees and vines in the Imperial Valley often constitutethe chief difference between a house and a home. VINES. There are several kinds of annual vines which will thrive andcover an arbor or porch, but the perennial vines are, as a rule, muchmore desirable. If these are deciduous they will not only keep thesun out during summer, but will let the sun in during winter. The Virginia creeper is one of the best known climbers in theUnited States and it thrives fairly well in Imperial Valley. One of 252 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION. its valuable features is its brilliant red autumnal coloration. The silkvine, Periploca graeca, is a rapid and vigorous grower with brightshining green leaves and is fairly resistant to alkali. Various grapesmay be used for covering arbors, the wild grape of Arizona, VitisArizonica, being one of the most drouth resistant. Halls Honeysuckleis also a very desirable vine which is almost evergreen and is attra
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