4 
OUR HARDY PLANTS 
A view in our Testing Grounds, where new varieties of Perennials 
from all parts of the World, are tested for hardiness and beauty. 
If you want to start on a little larger scale a few plants ot 
each of the following varieties will give you a succession of 
flowers from spring until late fall, starting in May with the Dwarf Phlox 
Subulata and ending with the Perennial Aster and Philippinense Lily in 
late fall. 
ALL SEASON LIST OF HARDY PERENNIALS 
DWARF PHLOX SUBULATA, Evergreen foliage. May and June. 
IRIS, May and June. 
ORIENTAL POPPY, May and June. 
PEONIES, May and June. 
COLUMBINE, June and July. 
SWEET WILLIAM, June and July. 
SHASTA DAISY, June, July, August, and September. 
CORAL LILY, June. 
REGAL LILY, July. 
PHILIPPENENSE, August, September, and October. 
CANTERBURY BELLS, July and August. 
PLATYCODON, Chinese Balloon Flower, July and August. 
PHLOX, July and August. 
DELPHINIUM, June, July, and August. 
HOLLYHOCKS, July, August, and September. 
LINUM, Flowering Evergreen, June, July, August and September. 
PERENNIAL ASTER and CHRYSANTHEMUM. Sept, and Oct. 
See descriptions and prices for these varieties in alphabetically arranged 
list of Hardy Perennials and Rock Garden plants starting on page 6. 
ROCK GARDENS AND 
LILY POOLS 
The planning and making of a 
Rock Garden is the most fascinat¬ 
ing of all garden activities. One 
reason for this is that the Rock 
Garden does not have to be made 
or planted at any certain time of the year 
nor does it have to be completed at one 
planting. In fact, the Rock Gardens that 
are giving their owners the most enjoy¬ 
ment are those that are never completely 
finished, but where there is always room 
to add some rare Alpine plant or a new 
rock of special formation, from time to Barbara Ann watching the 
time. Rock Gardens may vary from one Gold Fish, while Peter our 
which takes but a little corner of the gar- English Bullterrier gets a drink 
den, to one covering the entire hillside ot from the pool 
some large estate, and each be equally 
pleasing to its owner. There is usually a 
place for a Bird Bath or Lily Pool in nearly every Rock Garden. Water gar¬ 
dening is also very fascinating. We have a leaflet on Rock Gardens and 
Lily Pools that we will be glad to send you if you would like it. 
DISTANCE FOR PLANTING. Most Perennials do best 
when grouped together with plants 6 to 12 inches apart. If 
set in rows across a bed, have the plants about 8 inches a- 
part in rows and the rows 12 to 15 inches apart. If single hedge row or bor¬ 
der effect is wanted, either set a single or double row with plants 8 inches 
S art alternate. Where a single clump effect is wanted it is better to set 
ree to five plants 4 to 6 inches apart, so that they will grow together and 
give the effect of one large plant. In planning where to set your plants. 
