WARM GREENHOUSE. 105 



scented flowers in August. It requires to be grown in a 

 temperature of 60 to 65 deg., and, coming from a moist 

 climate, naturally demands a moist atmosphere. Since 

 Messrs. Kelway and Son introduced this fine species, they 

 have obtained a new race of charming hybrids by crossing 

 it with Gladiolus gandavensis. 



Hec man thus. Although all the species of this genus 

 come from South Africa, some require more warmth than 

 others to grow them to perfection. The former, there- 

 fore, we shall deal with here, and the latter under the 

 heading of the cool greenhouse. 



The compost for these bulbs should be composed of two 

 parts of sandy loam and one of equal proportions of peat, 

 well-decayed manure, and coarse silver sand. Plant the 

 bulbs singly with their apex exposed in six or eight-inch 

 pots, according to size, in early spring; make the soil 

 firm, and see the pots are well drained. Until growth 

 becomes active, water sparingly, freely afterwards, and 

 in winter give none at all. These bulbs do not require 

 repotting often than once in three years. It is advisable, 

 therefore, after the first year to give weak liquid manure 

 in summer. Increased by offsets. 



The species requiring warm treatment are: Cinnabarium, 

 red (spring) ; Katherinse, scarlet (spring) ; multifiorus (Syn 

 Kalbreyeri), scarlet (spring); and Queen Alexandra, orange 

 scarlet (spring) ; and albiflos, white (summer). 



Tuberose (Polianthes tuberosa). Although the fra- 

 grant Tuberose will do well in a cool house, it requires 

 warmth to bring it early into flower. Indeed, it is a good 

 plan to have three batches of tubers in hand, one in a cold 

 frame, another in a cool house, and a third in the warm 

 one. By bringing forward a few pots at a time from the 

 lower to the higher temperatures, a succession of flowers 

 may thus be obtained over a longer period. 



The tubers should be potted as soon as they can be 



