LYCHNIS viscaria, var. splendens. Lamp-flower. Makes 
large clumps of almost evergreen foliage. Comes into bloom in 
early June and continues for six weeks or more. Its flowers are 
bright crimson ; useful for cut-flowers. Without doubt the finest 
red-flowered hardy perennial, i ft. 
LYTHRUM Salicaria, var. superba. Loosestrife. This plant 
should be used in all large gardens, for its bright rose-colored flow- 
ers make a fine display if planted in masses. Grows finely by the 
borders of ponds. 3 to 5 ft. July and August. 
MARSH MALLOW. See Hibiscus. 
MERTENSIA pulmonarioides. Blue Bells. An early spring-ffow- 
ering plant, growing about 1 to i'/z feet high, with drooping panicles 
of handsome light blue flowers. May and June. 
OENOTHERA Missouriensis. Evening Primrose. Large golden 
yellow flowers all summer. This variety is the handsomest of this 
showy genus ; fine border plants. 1 foot. 
PAEONIA. See Circular No. 10. 
PAPAVER orientalis. Oriental Poppy. Showy perennials, with 
immense showy scarlet and red flowers, 6 inches in diameter, on long 
stems, borne well above the foliage, in June. 
PENTSTEMON barbatus Torreyii. Perhaps the most showy of all 
Pentstemon. Throws out spikes 3 to 4 feet, covered with bright scar- 
let flowers. Blooms from 
June until August and 
makes a very effective 
plant for hardy beds. 
P. digitalis. A tall border 
plant, with showy, white, 
inflated blossoms on 
slender spikes. to 3 
feet. July. 
PLATYCODON grandi 
flora. Large, showy, 
deep blue flowers. 18 
inches. June to October. 
PERIWINKLE. See 
Vinca. 
PEA. See Lathyrus. 
Oriental Poppy 
PHYSOSTEGIA speci- 
os a. A midsummer- 
blooming hardy plant, 
growing three feet or more 
high. Flowers small, tu- 
bular in form, thick 
together on good lengthy 
spikes. A very beauti- 
ful, free-flowering plant. 
White or rose. 
Hardy Herbaceous Perennials 
10 
