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Hardy Herbaceous Plants 
POTENTILLA alpestris. ® Cinquefoil. Produces bright 
yellow flowers 1 inch across. 6 to 9 in. May—July. 
P. tridentata. ® See Ground-Covers, page 75. 
P. verna nana. ® Very fine rock-plant. Compact, low 
growing, forming a dense mass covered with large 
yellow flowers. Very early. 4 to 6 in. April, May. 
$1 for 3, $2.50 for 10, $22 per 100. 
POTERIUM obtusum (Sanguisorba obtusa). Japanese 
Burnet. Crimson flowers in spikes 3 inches long, 
nodding at tips. 3 ft. June, July. $1 for 3, $2.50 
for 10, $22 per 100. 
PRIMULA auricula. ® Primrose. A well-known and 
loved garden plant with fragrant flowers in various 
colors. 4 to 5 in. Early April, May. 
P. cortusoides. ® Small, wrinkled leaves. Deep rose 
flowers on 10-inch stems. Very fine type. 10 to 12 in. 
May, June. 
P. denticulata cachemiriana. ® Clusters of purple 
flowers. 12 to 15 in. April, May. 
P. Moerheimi Hybrids. (3) A fine strain of the cande¬ 
labra type. Strong spikes of reddish pink, yellow, 
lilac, etc. Mixed only. 9 to 12 in. May. 
P. polyantha. ® An old favorite with flowers in various 
colors. 1 ft. April, May. 
P. polyantha, Munstead Strain. ® Huge, fragrant, 
golden yellow flowers, borne in great profusion. 6 to 
9 in. April, May. 
P. polyantha. Red Shades. ® A selected strain with 
rich red and crimson flowers. 1 ft. April, May. 
P. veris caerulea. ® Rich violet-blue with a yellow eye 
—a very unusual color in Primulas. 6 to 9 in. April, 
May. 50 cts. each, $1.35 for 3, $4 for 10. 
P. vulgaris. ® The true English Primrose. Pale yellow 
flowers. 8 to 10 in. April, May. 
All Primulas, $1 for 3, $2.50 for 10, $22 per 100, 
except where noted 
PULMONARIA. These are among the first plants to 
flower in the spring. They have a charm all their own, 
and in these two varieties we have probably the finest. 
P. angustifolia azurea. ® Attractive dark green leaves 
and lovely heads of deep gentian-blue, funnel-shaped 
flowers. One of the finest blues to be found. 1 ft. 
April, May. 
P. saccharata, Mrs. Moon. ® Leaves of paler green, 
spotted with white, blowers rosy pink. 1 ft. April, 
May. $1 for 3, $2.50 for 10, $22 per 100. 
PYRETHRUM. Painted Daisy. These are frequently 
called “Spring-flowering Chrysanthemums,” so 
closely do they resemble the hardy varieties. They 
are very desirable for cut-flowers, lasting for a long 
time in water. Illustrated in color on page 76. 
P. roseum. The plants include all colors from deep red to 
various shades of rose to pure white. ft. May, June. 
P. roseum. Double Mixed. These are seedlings from se¬ 
lected double varieties. They will give a good propor¬ 
tion of doubles. Mixed colors only. 23^2 ft. May, 
June. 
P. roseum, James Kelway. Large single flowers of vivid 
scarlet. 23^ ft. May, June. $1 for 3, $2.50 for 10, 
$22 per 100. 
P. roseum Wilsoni. Double bright pink flowers with 
creamy centers. 23^^ ft. May, June. $1.50 for 3, 
$4 for 10, $35 per 100. 
ROSA Rouletti. Eor this and other rock-garden va¬ 
rieties, see page 49. 
ROSMARINUS officinalis. Rosemary. Unfortunately, 
rather tender here and to the north. Used as a 
flavoring for meats and wines and for pot pourri, etc. 
Flowers white. 6 ft. April, May. $1 for 3, $2.50 for 
10, $22 per 100. 
RUDBECKIA purpurea (Echinacea purpurea). Purple 
Coneflower. Fine purple-red petals; cone-shaped 
center. 3 to 4 ft. July—Oct. 
R. laciniata hortensia. Golden Glow. Double; yellow. 
6 ft. June—Sept. 
R. maxima. Double; yellow. 6 ft. June—Sept. 
SALVIA farinacea. Mealy-cup Sage. Beautiful laven- 
der-blue flowers, 13^ in. 3 ft. July, Aug. 
S. officinalis. Sage. Showy spikes of purple flowers 
above gray foliage. 2 to 3 ft. June. 
Salvia Pitcheri. Blue Meadow Sage. Flowers deep indigo- 
blue, produced in great profusion on slender stalks 
when flowers are scarce. 3 to 4 ft. Aug., Sept. 
S. pratensis. Meadow Sage. Deep blue flowers on long 
spikes. 2 to 23 ^ ft. June, July. 
SANGUISORBA obtusa. See Poterium obtusum. 
SANTOLINA Chamaecyparissus (incana). ® Lavender 
Cotton. Dwarf evergreen perennial with silvery white 
foliage. Fine plant for the rockery. Small yellow 
flowers in summer. 13^ ft. July. 
SAPONARIA ocymoides. ® Rock Soapwort. A rock- 
plant with many small bright crimson flowers. 1 ft. 
May, June. 
SAXIFRAGA Macnabiana. ® A beautiful variety with 
large white flowers, prettily spotted red. 1 ft. May, 
June. $1 for 3, $2.50 for 10, $22 per 100. 
S. pedemontana. ® Small, tufted variety bearing white 
flowers 1 inch across. 4 in. April, May. $1.50 for 3, 
$4 for 10, $35 per 100. 
SCABIOSA caucasica. Pin-cushion Flower. A hand¬ 
some, hardy plant that should be grown by everyone. 
Beautiful, soft lilac flowers. Vigorous grower. 2 ft. 
June-Aug. 
S. caucasica alba. Pure white. 2 to 3 ft. June-Aug. 
S. caucasica. House’s Hybrids. Shades of lilac and 
blue. The flowers are larger and on stronger stems 
and more free flowering than the older variety. 2 ft. 
June—Sept. $1 for 3, $2.50 for 10, $22 per 100. 
S. japonica. Clear blue flowers, 2 inches in diameter, in 
great profusion. 2 to 3 ft. June-Sept. 
SEDUM. Stonecrop. The dwarf varieties of Sedum are 
gems for the rock-garden and thrive in dry, sunny 
situations. Some of them are evergreen. The upright 
varieties are useful for the border and make a great 
showing late in summer and in the fall. 
S. acre. ® Golden Moss. Bright yellow. 3 in. May, 
June. 
S. album. ® White flowers. Evergreen leaves. 3 in. 
May, June. 
S. dasyphyllum. ® A dwarf, compact variety. 2 in. 
May—July. 
S. hispanicum. ® Pinkish white flowers. Greenish 
gray foliage becoming reddish. 3 to 4 in. July. 
S. reflexum. ® Yellow flowers. 3 in. July. 
S. sarmentosum. ® A vigorous grower of spreading 
habit. Yellow flowers. 6 in. May. 
S. Sieboldi. ® Foliage changes from blue and cream to 
coral-rose. Flowers rose-pink. Charming. 9 in. 
Aug., Sept. 
S. spectabile. ® Large heads of pink flowers. A fine 
border plant and one of the best for foliage or flower 
effects. 1 ft. Aug., Sept. 
S. spectabile. Brilliant. ® A deep rosy crimson variation 
of the above. 1 ft. Aug., Sept. 
S. spurium splendens. ® Pink. 6 in. June. 
S. stoloniferum coccineum. ® Red. 6 in. July. 
All Sedums, 75 cts. for 3, $2 for 10, $15 per 100 
SEMPERVIVUM arachnoideum. ® Cobweb House- 
leek. Tips of leaves in rosettes, usually connected by 
silvery threads, from whence its common name. 
Flowers bright red, in few-flowered panicles. 6 in. 
Sept., Oct. 
S. arenarium. ® Elegant little green rosettes. Flowers 
pale yellow tinted red. 9 in. Sept., Oct. 
S. Browni. ® Very distinct, with dark green foliage 
tipped brown. Flowers red. Of great value in the 
rockery. 9 in. Sept. 
S. Fauconnetti. ® Small rosettes with very small leaves 
and red flowers. 4 to 6 in. Sept., Oct. 
S. globiferum. ® Flowers pale yellow. Densely short- 
hairy leaves. 1 ft. Sept., Oct. 
S. Juratense. ®*Rare. Small, star-like rosettes of 
greenish brown color. 1 ft. Sept. 
S., La Harpei. ® Yellow. 8 in. Sept., Oct. 
S. tectorum. ® Red. 1 ft. Sept. 
All Sempervivums, 75 cts. for 3, $2 for 10, $15 per 100 
Prices, unless otherwise noted, 85 cts. for 3, 
$2.30 for 10, $20 per 100 
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