AQUATIC PLANTS 209 



will prevent any of this soil from getting into the water. The crown 

 of the plant should not be covered and ought to be about 12 to 14 

 inches below the surface of the water. They need an abundance of 

 sunlight. 



Before freezing weather sets in the tender plants should be taken 

 up. Close to the main root will usually be found a few tubers about 

 the size of shellbarks. These are the starts for next season's plants. 

 They are to be broken ofif and kept in cool water or moist sand. In 

 April they may be laid in shallow, warm water until sprouted, then 

 placed in submerged pots, and later permanently planted out in June. 



Hardy water lily roots only need be kept moist and from actual 

 freezing. In a pond they may be left out. In early spring they form 

 a number of new crowns. The parent root should be cut up into 

 pieces, allowing a crown to each piece. Plant only one crown to a 

 pot. Let all water lily pots be as large as space will permit. Most 

 tenders will grow and bloom in a seven-inch bulb pan in an ordinary 

 tub, but they are dwarfed from lack of space. They will do better in 

 a box about a foot deep by thirty inches square, or in a hole 18 inches 

 wide and 20 inches deep, as shown in Figure 204. Tropical water lilies 

 show a surprising degree of intelligence in adapting themselves to the 

 size of the pool they are in, reducing leaf and flower to accommodate 

 themselves to the available space. The ordinary hardy water lilies 

 if given as much space as they can use will have a surface diameter 

 of about four feet. The usual tropicals vary from 10 to 15 feet, but 

 will do well in pools of six-foot diameter. 



We present a list of the most satisfactory varieties in each class. 



Hardy 



White: Gladstoniana, Marliacea albida, Richardsoni. 



Pink: Marliacea rosea. 



Yellow : Marliacea chromatella. 



Red: Paul Hariot, Gloriosa, Aurora, James Brydon. 



„ ... Tender Day-Blooming 



White: Gracilis. 



Pink : Mrs. C. W. Ward. 



Blue: Pennsylvania, Wm. Stone, Pulcherrima. 



Purple : Zanzibariensis. 



Tender Night-Blooming 

 White : Dentata magnifica. 

 Pink : O'Marana. 

 Red: Rubra, Devonensis. 



Winter-Blooming (Indoor) 

 Blue: Mrs. Woodrow Wilson, Panama Pacific 



