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 



