8 
NEW OR NOTEWORTHY PLANTS 
humus. A surfacing of gravel or stone chips 
is the only mulch required. The leaves are 
often evergreen and seem to like the sun¬ 
shine, even in winter. Plant in spring; sow 
seeds in autumn. 
P. albidus. White Pentstemon. *i For the 
dry rock garden; the white spikes appear 
in May. Thrifty transplants, 3 for 40c. 
P. alpinus. *t Deep blue flowers in a long 
raceme, sandy soil. Transplants, 3 for 40c; 
dozen, $1.25. 
P. angustifolia. *$ Attractive sky-blue 
flowers in May; sandy soil. Transplants, 3 
for 40c; dozen, $1.25. 
P. Crandallii. *% A creeping, mat-forming 
Pentstemon with evergreen foliage. A most 
valuable rock-garden type, fitting itself 
among the rocks in a charming manner; 
hardy and permanent. Flowers early, in 
shades of pale blue, forming a carpet of col¬ 
or. Small established clumps. 40c; 3, $1.00; 
dozen, $3.50. 
P. Grandiflorus. *$ The most splendid of 
native Pentstemons; about two feet tall, 
carrying two-inch trumpets of rosy purple. 
Thrifty transplants, 3 for 40c; dozen, $1.25. 
P. humilis. (Syn. P. virens.) *$ To 10 
inches; dependable, and easily grown. The 
foliage forms low mats of dark green 
throughout the season, sending up slender 
sprays of intensely blue flowers in June. 
Flowering plants: 30c; dozen, $2.50. 
P. humilis albus. *$ Differs from the type 
only in color, being pure white. 50c; 3, $1.25. 
P.lavendulus. *$ 12 inches; this mountain 
form of P. secundiflorus is dwarfer and 
makes better clumps; glaucus foliage, flow¬ 
ers deep rosy lilac. Transplants, 3 for 40c; 
dozen, $1.25. 
P. Rydbergii. Small dark blue flowers in 
dense clusters; moist soil; very permanent 
in cultivation. 50c each. 
P. Torreyi, Colorado. *$ Dwarfer and ear¬ 
lier flowering than the one commonly grown 
in gardens under this name. Flowers vivid 
scarlet. Transplants, 3 for 40c; dozen, $1.25. 
PEONIES. See separate section. 
PHLOX. Polemoniaceae. A large number 
of ornamental species from which have 
sprung several important garden groups. 
Almost all are easily grown and are hardy 
north. 
P. andicola. (Syn. P. Kelseyi.) *$ A dwarf 
white Phlox of the sandhills, not trailing 
but forming little tufts with sparse foliage. 
30c; dozen, $2.50. 
P. divaricata. $ Very early, blue-lavender; 
shade. 30c; dozen, $2.50. 
P. Bryoides. *$ Low moss-like evergreen 
silvery tufts, the flowers white or lilac. Es¬ 
tablished plants, 50c; 3, $1.25. 
P. glaberrima. Slender species a foot or 
tAvo tall, flowers purple. 40c; 3, $1.00. 
P. Hoodii. *$ Doubtless the smallest spe¬ 
cies; low tufts, an inch high, by two or 
three inches broad, thickly starred with 
small white flowers. Established plants, 
40c; 3, $1.00. 
P. multiflora. *t 4 inches; produces mats 
of grayish foliage from a branching and 
rooting stem, covered in in spring with 
showy lavender or lilac flowers; very frag¬ 
rant. Easily grown in a well-drained soil 
of gritty loam with humus, to be kept moist 
during the growing season. Strong estab¬ 
lished clumps: 50 cents; 3, $1.25. 
P. ovata. t Dwarf, early, bright rose-pink. 
30c; dozen, $2.50. 
P. pilosa. t Early-flowering, sun or part 
shade. 40c. 
PHLOX. Garden varieties, see separate 
section. 
Phlox andicola 
Physostegia, Vivid. An improvement over 
others, being dwarf, compact and freely 
branching. Flowers a delightful shade of 
rose-pink. 30c; dozen, $2.50. 
POLEMONIUM Archibaldii. *$ Polemon¬ 
iaceae. The best and easiest to grow of sev¬ 
eral mountain species, and the very large 
deep violet bells are borne nearly all sum¬ 
mer. It has no musky odor. 50c each; 3, 
$1.25. 
POLYGONUM. (Syn. Bistorta.) Polygan- 
aceae. The Bistorta section of a weedy fam¬ 
ily includes two excellent alpines, easily 
grown and of real value; for moist soil with 
sun or light shade. 
P. Bistortoides. *% Slender 15-inch stems 
from a tuberous root bear dense cylindrical 
heads of rosy white flowers. 30c; dozen, 
$2.50. 
P. calophylla. *% Similar, but dwarfer, 
flowers white, with more ample dark glos¬ 
sy foliage. 30c; dozen, $2.50. 
POTENTILLA. Rosaceae. A very large 
