
Double Syringa 


SPIREAS 
RED SPIREA (Anthony Waterer). Handsome round 
bush, growing 2% to 3 feet in height and width. Begins to 
bloom in early summer, and if the dead blossoms are picked 
off, it will continue blooming until late in the fall. Bright 
red flowers in large clusters, all over the bush. The most 
popular of all red flowered shrubs. Hardy in Zone 4. Size 
1% to 2 feet, $1.00 each; 3 for $2.70, postpaid. 
WHITE SPIREA Bridal Wreath (Van Houttei). 7 fect. A 
leader among shrubs and a beautiful ornament at all seasons. 




Sometimes called Bridal Wreath. A round and graceful bush 
with arching branches, covered with whité flowers in the 
spring. No doubt one of the most useful of all shrubs for the border, 
around porches and for hedges. For prices on smaller hedge size 
see page 63. Hardy in Zone 4. Size 2 feet, 75¢ each; 3 for $1.95, 
postpaid. 
DOUBLE SYRINGA 
The Double Syringa (Philadelphus Virginalis) is a magnificent 
variety growing about 6 ft. high. The flowers are double and the 
largest and most striking of all varieties; often measure two inches 
or more in diameter, very fragrant and excellent for cutting. It 
has a long blooming season, making its best display of flowers in 
May and June, with scattered bloom through summer and fall. A 
most desirable shrub for the border and for foundation plantings. 
Many who have seen it, declare it to be the most beautiful white 
flowered-shrub that has been introduced within the last quarter of 
a century. Hardy in Zone 4. Size 2 feet, $1.20 cach; 3 for $3.30, 
postpaid. ; 
ROSE ACACIA 
THE ROSE ACACIA (Robini hispida) grows 3 to 
and is one of the most striking of all spring flowering 
pea-shaped flowers of rose-purple are produced in May and June in 
loose panicles giving the impression of a cluster of sweet peas. 
Easily grown and will thrive on the poorest of soils and in either 
sun or partial shade. Hardy in Zone 4. 2 feet, 60c each; 3 for 
$1.50, postpaid. 
FRENCH PUSSY WILLOW 
Not the wild pussy willow but a cultivated variety that has made a sensation 
wherever it has been shown. Branches of this variety have been selling at retail 
during the winter months in cities at from $1.00 to $2.00 per dozen. You Can 
Grow Them on Your Own Lawn. Enjoy these dainty silvery flowers every winter. 
A beautiful round shrub in summer. Wherever you have room for a Lilac or 
Snowball, you have room for a Pussy Willow. Use them for tall screens or 
backgrounds. Cut the ends of the branches in January or February. Place them 
indoors in a vase of water. Watch them unfold their large catkins of silvery 
pink, from 1 to 2 inches long. They will repay you many times their cost in 
pleasure. Grows 10 to 12 feet high. Hardy in Zone 2. 2 feet, 60c each; 3 for 
$1.50, postpaid. 
4 feet high 
shrubs. The 

Spirea Van Houttei (Bridal Wreath) 
French Pussy Willow 

HARDINESS MAP 
Sioux Lookout 
ZONE 2° 
* Bismarek 
We Senet Ens as 
Dyfoth 
5 Maneopole t % 
iad on Madison 
Sc sate of 
' Huron 
© Res 
[Revie City 
{Re Lonsina 
'* Sioux City Detroit 
t Novth Piatt” 5 
+ 
Fost bri 
NW oyne | c 

a 
Peoric * 
. 
° 
+ Kansos City \Springheld ‘ 
iv Terre Haute 
onsville ve 
~ J; 
St. Lovis 9 
Wichita Columbia s 
uy ’ 
ro ea 
— 
a 
: ’ 
¢ Son Diag! AlbGquearsue ; 
“~ 
Roswell « 
* 
ors abe Mearldion sMontnone yh 
? = * o : 
Sarevepay Mie og 
“i x t 
z0% ast 
# Auxin 
: New Orleans 
. 
San Aatonte 
Pensoco! 
HARDINESS MAP 
ne 
These zones ore based on average annual minimum id 
temperatures as listed by the U. S, Weather Bureau 
for the years 1895-1935 and published in the Atlos 
of Americon Agriculture, U. S. D. A., Washington, 1936 
Galveston 
Corpus Christi 
a 5 FE 
foursyille 

edo Cle 
olumbus 
ny 
p 
‘4 
[indignant cincinnat Forkarsbvra 
Pe 
~) githmond 

A000) 
Mocon 
Savannan 
lo 
vee Re: 
nw “yg 
AVERAGE ANNUAL 
MINIMUM TEMPERATURES 
FOR EACH ZONE 
Zone 1 in Northern Conada 
Zone 2 —$0° to —35° 
Zone 3 —35° to —20° C=) 
Zone 4 —20° to —10° GEE 
Zone § —10° to — S° LSD 
Zone 6 — 5° to + 5° EE 
Zone 7 Sto: 10° FI 
Zone 8 10° to 20° 
Zone? 20° to 30°C 
Zone 10 30° to 640° GE 



USE THE HARDINESS MAP 
So many of our customers in the northern 
states want to know just how much cold a 
“‘hardy’’ shrub or plant will stand that we 
have incorporated as much of this informa- 
tion as possible into our catalog. Wherever 
this information is available, we have given 
it in the deseription of each varicty. As an 
example, Pussy Willow above is listed as 
“‘Hardy in Zone 2.’? This means that it will 
survive the winters in any territory marked 
2 or higher, on the map below. As a general 
rule, most plants will survive one zone farther 
north if planted in a sheltered location. 
This map was redrawn from one furnished 
us through the courtesy of the Arnold Arbor- 
etum at Jamaica Plains, Mass. 
WHEN TO PRUNE SHRUBS 
perlite | Amorilo Oklohoma.cily fo Ee Nlashille ® Know As a general rule it is advisable to prune spring- 
5 6 pent a flowering and early-summer-flowering shrubs imme- 
ZL © NEL i wine Roose he 4 Aiferio eicad diately after they complete the period of flowering. 
) e eS K Charleston ts , 
i e ee teieminnt.ore\ ae Pe aS ORR This is because the blooms occur on old wood, or the 
previous year’s growth, and pruning immediately after 
bloom encourages growth for next year’s bloom. Thin- 
ning should be confined to removal of dead wood and 
judicious removal of new wood as necessary to malin- 
tain the shape and size desired for the location. 
Late-summer flowering and fall-flowering shrubs pro- 
duce their blooms on wood of the same sea- 
son’s growth. These may be pruned in late 
fall or early spring, preferably while dor- 
mant. This encourages new growth for 
abundant new bloom. 
