143 to 147 East Front St. t Trenton, N. J. •{ 35 )■ 
Ribsam’s Manual 
HARDY PERENNIAL PLANTS FOR 
ROCK GARDEN AND BORDER 
PLANTING 
There seems to be a greater desire to plant perennials from year to year. 
We have listed a collection which will give you blossoms from early Spring until late Fall. However, 
we can supply many other varieties. Send us your list. 
Rock gardens are yearly increasing in popularity, as rockery building is a fascinating pastime and if 
one has only a few square yards of ground this will be found sufficient to grow quite a variety of plants, 
affording a great deal of pleasure in caring for them and watching the rockery develop. 
All varieties listed on following pages are 25c. each, $2.50 per doz. 
*The asterisk marks those plants best adapted to Rock Gardening 
ACONITUM ( Monkshood ) 
fischeri. A dwarf variety growing 18 in. high with large, 
hooded blue flowers in September and October. Does well 
in semi-shade. 
ALYSSUM ( Madwort) 
saxatile compactum ( Basket of Gold). Produces masses of 
broad, flat heads of bright yellow flowers in May. Attrac¬ 
tive gray foliage. 
ANCHUSA ( Alkanet) 
italica. Showy dark blue flowers. Coarse foliage, about 
4 ft. high and blooming in May and June. 
*myosotidiflora {Forget-me-not Flowered). An entirely differ¬ 
ent and distinctly dwarf species growing about 12 in. high 
and producing during May and April sprays of beautiful 
Forget-me-notlike flowers of a rich blue. 
ANTHEM IS ( Marguerite) 
tinctoria. Beautiful yellow Daisylike flower with very 
attractive, finely cut foliage. A rapid grower about 3 ft. 
high, blooming nearly all Summer and especially fine 
for cutting. 
AQUILEGIA ( Columbine) 
Mrs. Scott Elliott. Mixed colors of all the pastel shades, 
growing from 18 in. to 3 ft. high. These beautiful flowers 
have a fairy grace all their own and bloom in late Spring 
and early Summer. Foliage attractive throughout the entire 
season. 
ARABIS ( Rockcress) 
*alpina. A very showy white; May flowering creeper. 9 in. 
April. 
ARMERIA ( Thrift . Sea Pink) 
*laucheana. Compact tufts of grasslike foliage blooming in 
May and June. Has globular heads of shades in pink and 
also white flowers. 
ASTER (Starwort or Michaelmas Daisy) 
N. A. Barr’s Pink. 3)4 to 4 ft. high with coarse foliage, 
with large bright rose flowers in September. 
ASTER (Dwarf Alpine) 
*alpinus. A very dwarf variety with large, bluish purple, 
Daisylike flowers. May and June. 
CALAMI NTH A ( Calamint) 
alpina. A prostrate rock plant producing a mass of violet 
blue flowers in July and August. 
CAMPANULA ( Bellflower) 
medium ( Canterbury-bells ). A very showy biennial rose, 
lilac and white. 
CENTAUREA (.Hardheads or Knapweed) 
montana {Perennial Cornflower). A lacy, thistlelike head 
of a beautiful shade of blue; 2 ft. high and blooms in 
June and July. 
COREOPSIS ( Tickseed) 
grandiflora. The very common large yellow Daisy, very 
good for cutting and most graceful in habit. The more it 
is cut the more it blooms. 3 to 4 ft. high. 
DELPHINIUM {Larkspur) 
Belladonna. Light blue spikes of flowers. 3 ft. high. Fine 
for cutting throughout the season. 
Bellamosum. Same as above, except that it is a much 
darker shade of blue. 
*chinense. A dwarf variety about a foot high, having both 
shades of blue and also white in color. A wonderful border 
plant. 
Hybrids. Some of these grow 5 ft. high and are of varying 
shades of blue with magnificent spikes of flowers. 
