CHAPTER XVIII. 



HARDY PERENNIAL PLANTS 



SUITABLE FOR MARGINS OF PONDS AND MOIST GROUNDS. 



Achillea tllipetidula. A vigorous showy species, with golden yellow flowers 

 in dense flat corymbs, on stout stems, three to four feet high; foliage very 

 handsome; flowers from July to October. 



Amsonia tabeni tnontana. Pale lavender-blue flowers in May and June in 

 broad clusters. 



Ariswwa triphyUum. (Jack-in-the-Pulpit). An aroid, twelve to eighteen 

 inches high, with a turnip-shaped corm. Spathe green, or often variegated 

 with dark purple and whitish stripes or spots, and much hooded at the summit. 

 An interesting and showy plant. 



Armeria maritima. (Sea Pink). A pretty species, producing from a 

 crowded tuft of leaves heads of bright colored flowers; and var. " Pink Beauty" 

 a pretty pink variety. 



Asclepias tuherosa. (Butterfly Weed). Compact umbels of brilliant orange 

 colored flowei-s on stems two feet high ; very showy and effective in masses. 



Aster ohlongifolius. Forms a compact bushy plant with numerous violet- 

 purple flowers with yellow centers. Good for the wild garden. 



Cassia marilandica. (American Senna). A plant growing from three to 

 four feet high, bushy, with large panicles of curiously shaped, bright yellow 

 flowers in abundant axillary clusters The beautiful pinnate light green 

 foliage is very pleasing. A very desirable plant. 



Clematis Davidiana. A fine species, bearing large axillary clusters of 

 fragrant blue Hyacinth-like flowers ; grows three feet high, and is erect in habit. 



C. erecta. (Upright Virgin's Bower). An erect species, two to four feet, 

 with dense panicles of small white flowers in early summer. 



C. intcgrifolia. An erect species, one to two feet high, with blue, very 

 fragrant, solitary nodding flowers, one to two inches across. 



C. tuherosa. A showy erect species, similar to Clematis Davidiana, but 

 with dark purple flowers in summer. 



Dcsmodium penduMorum. This beautiful plant blooms in late summer, 

 producing large clusters of reddish-purple, pea-like flowers. 



