336 PLANT CULTURE 



white forms; Louis Van Houtte, dark red; Dr. Lindley, purplish 

 lilac; Charles X., reddish purple; Leon Simon, double, bluish crim- 

 son; Emile Lemoine, double, rosy -lilac. 



Propagation. Lilacs may be increased by seeds, suckers, 

 layering, cuttings from half-ripe or dormant wood, budding and 

 grafting. Raising plants from seeds is practiced for producing new 

 varieties and for supplying stocks. The best stock is the California 

 Privet, Liguslrum ovalifolium. By this method suckering is pre- 

 vented. Layering is a sure method, and when a limited number 

 of plants is wanted, it is the one which should be practiced. 



TAMARIX (Tamarisk). The Tamarisks are graceful, airy 

 shrubs which succeed admirably at the seaside where soil is apt to 

 be salt. 



Propagation. All of the species give little trouble in their 

 propagation. If cuttings 6 inches long be made from the previous 

 year's wood and put in gentle heat in the early Spring, they will 

 root in a few days. Outdoor propagation will require the cuttings 

 to be made nearly a foot long. 



liLEX (Whin. Gorse. Furze). U. europmus is a beautiful 

 shrub which frequently gets winter-killed with us, yet we would 

 not think of doing without it. It is useful for planting in the front 

 of a shrubbery, in sunny places. It starts into active growth very 

 early in the season, and late frosts do more injury than the very 

 severe frosts of mid-Winter, although, like many other things, it 

 does not like rapid thawing and freezing during Winter. 



Propagation. Seedlings are easily raised, and with good treat- 

 ment they will bloom when two years old. 



VIBURNUM (Snowball). Owing to their large and showy 

 heads of sterile flowers, several of the kinds are much grown in 

 shrubberies, in groups on lawns, and for cutting. V. opulus sterilis 

 is the one most largely cultivated; it comes in earlier than the 

 Japanese species, V. plicatum, which is the best for cutting, as the 

 flowers last longer, having more substance to them. V inacro- 

 cephalum, as the name implies, has large heads of flowers; in fact, too 

 large to be of much service in cutting. This form is shy in rooting 

 from cuttings, and is usually worked on seedlings of any of the free 

 growing species. There are numerous species, but their flowers 

 are not showy. V. reliculatum has very handsome foliage, and forms 

 a neat, tall bush. V. Tinus is an evergreen species, frequently getting 

 injured here during Winter; there are several desirable forms of it. 



