192 GARDEN PLANNING 



pond. This point is made clear in the dia- 

 grams A and B. The filling up and renewal 

 of the water may be done conveniently with 

 the garden hose. 



Although I have applied the term "cir- 

 culating system" to the arrangements just 

 described, it should be understood that they 

 are not adapted to ensure a constant move- 

 ment of water, which is quite unnecesly 

 sary. Water-lilies will thrive in perfectly 

 stagnant water which has not been changed 

 for months, but it is neither wholesome 

 nor pleasant to allow the same water 

 to remain in the ponds indefinitely. 

 Hence the usefulness of some means for 

 running off the foul water and refilling with 

 fresh. 



When the gardener has done his work, he 

 should fill the ponds, mark the water-level, 

 and allow them to stand for a week, noting 

 whether there is any leakage, which would 

 show itself by a drop in the surface level. 

 If all is satisfactory, the water may be 

 run off and the ponds will be ready for 

 planting. 



The end of April is the best time for planting 



