182 PRACTICAL PLANT PROPAGATION 



ACER Continued 



need much trimming; in fact, most of the dwarf growing varieties should 



not be trimmed at all, since letting them grow as Nature wishes, greatly 



promotes the Japanese effect." 

 INARCHING. Many of the Japanese Maples are inarched on seedlings. 



Best done from June to September. 

 ACTINIDIA. Japan Gooseberry. 



SEEDS. Sown in Spring or late Winter. 



CUTTINGS. Best use green shoots in Summer. Roots form readily, 



but buds are tardy to grow. 

 LAYERS. During Spring or Summer. 

 ADENOCARPUS. 



CUTTINGS. Unripe wood in greenhouse. 

 y-ESCULUS. Horse Chestnut. Buckeye. 



*SEEDS. Many species grow readily if sown as soon as ripe or 



stratified over Winter. JE. earned (rubicunda) rarely seeds. 

 ROOT CUTTINGS. M. parvi flora is so propagated. 

 BUDDING. JE. carnea (rubicunda) and M. hippocastanum var. flore 



plena are budded on sE. hippocastanum in July or veneer grafted 



under glass during August upon year-old seedlings. 

 DIVISION. Some of the dwarf sorts are best propagated by division 



of the crowns. 

 AILANTHUS. Tree of Heaven. 



SEEDS. Stratify during Winter; sow shallow in Spring. 



SUCKERS when roots are injured. 



ROOT CUTTINGS. Propagate from pistillate trees; female trees have 



bad odor. 

 AKEBIA. 



SEEDS. Sown in Fall or Spring in coldframe. 

 CUTTINGS. Hard wood, or soft wood in Summer. 

 LAYERS. Of hard or soft wood. 

 ALBIZZIA. 



SEEDS. Sow seed as soon as ripe. Soak in warm water 24 hours. 

 CUTTINGS. Under glass. 

 ALNUS. Alder. 



*SEEDS. Sow in Fall or Spring. Cover lightly. Keep moist. 



CUTTINGS. Ripe wood. 



GRAFTING AND BUDDING. Bud or graft varieties on the type. A. 



firma is best grafted on A. glutinosa. The Heart-leaved Alder 



(A. cordifolia) is useful as stock for those sorts to be grown on a 



dry soil. 

 AMELANCHIER. June Berry. Shad Bush. 



*SEEDS. Sow as soon as ripe, or stratify until Spring. 



SUTTINGS. Hard wood. 



ROOT CUTTINGS. Bury in sand in cellar during Winter, plant in 



Spring horizontally. 

 BUDDING AND GRAFTING. Dwarf sorts grafted on tall stocks. 



Cralsegus may be used as stock. 

 AMORPHA. False Indigo. 



*SEEDS. Sow seed as soon as ripe. This is commonest method. 

 CUTTINGS. Hard wood cuttings. Take in Autumn. Also green wood 



