226 The American Flower Garden 



over a longer season. After July, cut back, manure heavily, water 

 often, and they will make a fine show in September. All pansies 

 like a cool, moist atmosphere. For early bloom sow seeds in 

 August in frames or outdoors, giving light protection over winter. 

 Spring sowings give late bloom. Usually treated as annuals. 



PEA, PERENNIAL (Lathyrus lattfolius). Rosy magenta. August; 4 to 8 

 feet. A sprawling, rampant growing vine, with many flowers in a 

 cluster. Thrives anywhere, even in poorest soils, and improves 

 from year to year. Root a tuber, and dislikes removal. White, 

 dark purple, and striped varieties offered. (L. grandiflorus). Sim- 

 ilar, but with larger flowers, two together; less vigorous; 4 to 6 feet. 



PEARL ACHILLEA. See SNEEZEWORT. 



*PENTSTEMON. See BEARD TONGUE. 



PEONY (Paonia officinalis and albi flora). White, rose to deep crimson. 

 May, June; 2\ feet. Probably the most useful hardy, herbaceous 

 plant. Immense flowers like glorified roses, single and double, and 

 handsome foliage. Old-time favourite. (See p. 62 for best-named 

 varieties.) The real old kinds have been lost to cultivation under 

 name, as modern introductions show continuous and great im- 

 provements. 



PERIWINKLE (Vinca minor). Deep blue, pink, white. May, June. 

 Creeping. Best carpeting plant for shady places. Grows where 

 nothing else will. Leaves oval, I inch long, very deep, lustrous 

 green. Flowers hidden under the leaves, i inch or more across. 

 Often found escaped near old gardens. 



PHLOX, PERENNIAL (Phlox paniculate!). All colours but blue and real 

 yellow. August, September. Largest flower clusters of any hardy 

 perennial. Wide range of colours. Attracts more butterflies than 

 any other garden flowers. White phlox, fragrant in evening. To 

 prevent mildew divide every third year. Spray under sides of 

 leaves with ammoniacal copper carbonate. Miss Lingard, white; 

 Coquelicot, flame; Belvedere, salmon-pink; Richard Wallace, 

 white with violet centre; Mahdi, deep violet-blue; La Vague, 

 silvery rose, large; Crepuscule, gray-blue, flat head, are very 

 distinct varieties at this writing, but with new introductions the 



standards are likely to change every year. , WILD BLUE (P. 



divaricata). Lilac-blue; best for naturalising in moist, rocky soil. 

 , CREEPING. See Moss PINK. 



