ON GREENHOUSE PLANTS. 



737 



taken out of the pots, trays having a bottom composed of 

 strips of wood, with spaces in between, should be used, and 

 these must be placed on blocks, so as to admit the free passage 

 of air. 



All the bulbs are propagated by offsets, which method is- 

 described in the Chapter "On Plant Propagation." All that is 

 necessary is to save these, and grow them on ; many may also 

 be raised from seed. The tuberous-rooted plants are propagated 

 by division or by cuttings. 



AcHiMENES are tuberous-rooted. They have most beautiful 

 flowers, which are very varied in colour (Fig. 483). Start tubers 



Fig. 484. — Begonia Mrs. Pereira. 



in heat, placing them first in shallow pans in light soil ; after- 

 wards, when the shoots are about 2in. long, place in pots, and 

 grow on in the warm pit, giving plenty of manure. Use loam, 



3 B 



