SEASONAL EFFECTS 151 



spring, whereas later in the season, unless there is 

 absolute isolation, only taller material will stand 

 out by itself. As for habit of growth, foliage and 

 stems may make one plant more desirable than 

 another for a certain spot; thus Yucca filamentosa, 

 for its form, might be a better July note somewhere 

 than Platycodon grandiflorum, for its blue color. 



Perennials offer the lines of least resistance, 

 because of their permanence; but some of the bien- 

 nials, or plants best grown as such, are invaluable. 

 These include self colored sweet-william and col- 

 umbine, My os otis dissiti flora, Iceland poppy and 

 hollyhock, as well as foxglove and Canterbury 

 bell. Annuals are more useful as summer filllers 

 than as summer accents, though at times not to be 

 despised in the latter capacity. 



Miss Gertrude Jekyll's theory of a seasonal gar- 

 den is worth close study because she has put it to a 

 practical test on her English place. "I believe," 

 she says, "that the only way in which it can be made 

 successful is to devote certain borders to certain 

 times of year : each border or garden region to be 

 bright for from one to three months." 



No doubt this is the best, if not the only, way 

 when striving for the ideal is made a life work, as 

 in Miss JekylPs case. But the plan is an admirable 

 one for a place that is either very large or sufficient- 

 ly diversified to permit the division of the garden 

 into segregated sections. Miss Jekyll has an enor- 

 mous summer border, a secluded spring garden 

 and so on. 



