264 THE COMPLETE GARDEN 



to facilitate the handling of it. Three-quarter inch holes should be 

 bored in the bottom of the box every twelve inches, to provide drainage. 

 A zinc or galvanized iron lining in a wooden box is desirable but not 

 absolutely necessary. However, if a lining is not used it is best to 

 have the inside of the box charred to prevent rotting of the wood. 

 This is done by washing the inside, both bottom and sides, with kero- 

 sene and then lighting the oil and allowing it to burn until a thin 

 charred coating is formed. The box is turned upside down to smother 

 the flames. The most permanent types of window boxes are lined with 

 copper. All boxes, whether or not they are lined, must be provided 

 with holes for drainage. The absence of these holes may cause the 

 soil to become sour from overwatering, a condition which is avoided 

 when drainage is provided. 



A. Window Boxes. The following group of plants are those 

 adapted for window boxes in varying exposures of sunlight. These 

 plants should not be placed in window boxes which cannot be thor- 

 oughly drained unless great care is exercised in watering; otherwise 

 the soil will become sour and the plants will be "drowned out.'* 



a. South or west exposure: 



Ageratum houstonianum (dwarf) Hedera helix 



Floss Flower English Ivy 



Antirrhinum (intermediate or dwarf) Heliotropium peruvianum 



Snapdragon Heliotrope 



Codiaeum (in variety) Lobelia 



Croton Annual Lobelia 



Dracaena indivisa Maurandia (in variety) 



Dracena Maurandy Vine 



Geranium S. H. Nutt Nepeta glechoma 



Cardinal Geranium Ground Ivy 



Geranium Bruant Pelargonium peltatum 



Scarlet Geranium Ivy-leaved Geranium 



Geranium Beaute Poitevine Phlox drummondi 



Salmon Double Geranium Drummond's Phlox 



Swainsona galegifolia 

 Swainsonia 



b. East exposure: 



Antirrhinum (dwarf or intermediate) Dracaena indivisa 



Snapdragon Dracena 



Begonia (tuberous-tooted) Ferns 



Tuberous Begonia Many varieties 



