180 The American Flower Garden 



of flower; less so for larger trusses. Give rich soil and feed well. 

 Propagate summer cuttings. The type or species sometimes attains 

 30 feet. More feathery, lighter heads of flower. ,WiLD (H. ar- 

 loorescens). Flat flower head. Creamy white. June, July; 8 feet. 



Sterile form is Hills of Snow. , HORTENSIA (H. hortensis). 8 



feet. Flowers in large cymes without bracts. White, bluish, or pink. 

 Few, or all, sterile. The greenhouse hydrangea; also for planting out 

 in favoured situations. Will not usually stand much frost. An enor 

 mous number of varieties of this are offered in the trade, (#) JAPON- 

 ICA Group: Cymes flat, sterile and fertile. (&) HORTENSIA Group: 

 Cymes globose. Practically sterile; includes variety Thomas Hogg, 

 the hardiest and best for outdoors. (c) STELLATA Group: Flowers 

 with narrow sepals. The blue colour of the flowers in these groups 

 depends upon soil conditions, and may usually be induced in the 

 following year by watering with a solution of alum (one ounce to 

 three gallons) all the preceding summer while growth is being made. 

 INDIGO, BASTARD (Amorpha fruticosa). Fine feathery foliage and 

 spreading habit. 5 to 20 feet. Dark violet-purple flowers in racemes 



3 to 6 inches long. Adapted to small shrubberies, dry sunny situa 

 tions. Propagate by hardwood cuttings; also layers, suckers. 



JAPAN QUINCE (Cydonia Japonica). May; 8 feet. Earliest, bright 

 scarlet-flowered shrub. Useful also as a hedge. Plant as specimen. 

 Slow growing. Subject to San Jose scale. Don t plant near deco 

 rative fruit trees or orchards unless systematically sprayed. Stands 

 close pruning. Pink, salmon-pink, dark red, and white varieties. 



KERRIA (Kerria Japonica). Flowers yellow, like single roses. May, 

 June; 4 feet. Best graceful yellow-flowered shrub. Slender, 

 pendulous branches, which remain bright green and effective all 

 winter. Any garden soil. Double form and variegated form and 

 dwarf with striped branches. Good as a specimen. Sometimes 

 winter-kills in extreme North. Best in partial shade. Propagate 

 cuttings, layers, or divisions. , WHITE (Rhodoiypos kerrioides). 



4 to 5 feet. White, less profuse and later. Black berries retained 

 all winter. 



LILAC, COMMON (Syringa vulgaris). May; 20 feet. Very fragrant lilac, 

 white, or purple flowers. Grows anywhere, even in partial shade. 

 Spray with potassium sulphide for mildew in August, September. 

 Do not permit suckers to develop. Prune for form only. Most 



