184 The American Flower Garden 



Best hybrids: Blanc double de Coubert, white; Conrad Ferdinand 

 Meyer, silvery rose. All soils, including seaside. Do not prune. 

 Propagate by seeds or named varieties by hard wood cuttings. 

 SHEEP BERRY, NANNY BERRY (Viburnum Lentago). White flowers. 

 May, June, 30 feet. In cymes followed by clusters of oval bluish 

 black fruit with bloom, which endure till spring. Sometimes a tree. 



SENNA. See BLADDER SENNA. 



SIBERIAN PEA (Caragana arborescens). Pale or bright yellow pear-like 

 flowers. May and June; up to 20 feet. Sometimes a tree. Variety 

 pendular with weeping branches is very beautiful. Any soil, but 

 sandy preferred. Sunny position. Propagate by seeds, fall or spring, 

 root cuttings and layers. Best yellow flowered shrub of its season. 



SMOKE BUSH (Rhus Cotinus). Small flowers in loose panicles becoming 

 profusely plumose in June, July; 10 to 12 feet. Very effective as 

 lawn specimens. Leaves nearly round, dark green. A very charac- 

 teristic shrub, common in old gardens. Attacked by borers. 



SNOWBALL, COMMON (Viburnum Opulus, var. sterile). Large balls of 

 white flowers. May, June; 9 feet. Old-time favourite. Ragged 

 habit and subject to plant louse. Deep moist soil. The fertile form 

 of this shrub is the Highland cranberry, having scarlet fruit in July 



till following spring. , JAPAN (V. tomentosum). Is a much 



better shrub, especially for specimens. Flower heads more 

 rounded, cleaner, leaves crinkled and deeper green, brown on the 

 reverse. Blooms a little later. The best white large flowered 

 summer shrub. May be trained on walls. Propagate by cuttings. 



SNOWBERRY (Symphoricarpos racemosus). Clusters of large snow white 

 berries, at intervals along the slender branches. An old-time favour- 

 ite. Grows anywhere. Flowers pink but inconspicuous. May, 

 June; 5 feet. Berries from late June till after frost. Spreads 

 rapidly by suckers. 



SILVER BELL, SNOWDROP TREE (Halesia tetraptera). White. May. 

 10 feet. Bewildering cloud of white flowers before the leaves. The 

 most conspicuous of the early white flowering trees. Any good soil. 

 Habit twiggy and pendulous. 



SPICE BUSH (Benzoin odoriferum). 6 to 15 feet. Leaves oblong, finely 

 ciliate, bright green. Flowers yellow, before the leaves, in rosettes. 

 One of the earliest flowering shrubs with aromatic bark. Fruit 



