THE AGE OF STANDARDIZATION 
There are standards to go by and we are religiously endeavoring to follow them, even though we lose orders on ac¬ 
count of buyers judging price by height alone. 
In every Nursery row there are several grades or quality of plants (about the same heights the ordinary way of grad¬ 
ing). We use X’s and measure by standards. 
Throughout this catalog, you will find the schedule of prices are according to X’s. 
XXX indicates strictly heavy, low branched, choice Trees or Shrubs. 
XX indicates well developed, medium branched, good merchantable Trees or Shrubs. 
X indicates a fair quality, measured by height, and not necessarily perfect specimens. 
Every Invoice will show X’s, and B&B Tree, or Shrub, or NB STOCK. On every label written in 
WATERPROOF pencil the NUMBER of X’s, your order CALLS FOR. 
SPECIMEN STOCK selected or marked in the Nurseries will be priced according to its value. 
XXX XX 
Sylvester Juniper 
Pyramid Junipers. Which would you prefer? 
STANDARD EVERGREEN GROUPS 
What it requires to grade Evergreens by groups, either Conifers or Broadleaf. 
The Ornamental Growers’ Assn, (in the East) adopted a COMMERCIAL SCALE 
for GRADING CONIFERS in 1926. This grading was included in the AMER¬ 
ICAN ASSN. OF NURSERYMEN’S REPORT at Denver in 1928 and The 
Pacific Coast Assn, of Nurserymen have a COMMERCIAL GRADING of 
BROADLEAVED EVERGREENS, which is in a way very similar to the 
Commercial scale for GRADING and GROUPING CONIFERS in the East. 
THESE SIX GROUPS ARE AS FOLLOWS 
(I) Group No. 1 (Spreading Type) 
(II) Group No. 2 (Semi-spreading Type) 
(III) Group No. 3 (Globe or Dwarf Types) 
(IV) Group No. 4 (Cone Type) 
(V) Group No. 5 (Pyramidal Type) 
(VI) Group No. 6 (Slender Type) 
I II III rv V VI 
WHERE MEASURE STARTS AND STOPS 
MeasurcnieiUs of height, should be where the branches start, and not at the 
ground where the plants are leggy. Top measurements should stop where the 
main part of tlie top ends, and not at the tip of a thin shoot. 
STANDARDIZED GRADING 
In 1923, the American Association of Nurserymen adopted a Standardized 
System for Grading Nursery Stock, using the Symbol of X’s to indicate 
QUALITY and dividing the various classes of Evergreens into Grade Groups. 
In our judgment, this is the only way to honestly grade and sell Nursery 
Stock. Before buying, investigate the difference. 
When you visit our Nurseries, we will be glad to show you what is meant 
by Standardized Grading, and when you order, if you specify the QUALITY 
YOU WANT, we will make your selection accordingly. We give the following 
illustration to show what is meant by Grading by X’s^—all plants are the same 
height, but there is a great difference in the general appearance and value. 
XXX XX X 
Compact Broadleaf Evergreen 
PROPER SELECTION 
ADAPTABILITY CHART 
Being more or less familiar with SOIL AND CLIMATIC CONHITION'S 
throughout the Southwest, and knowing that CERTAIN KINDS of Trees and 
Shrubs will grow in the COASTAL REGION that will freeze in the 
Northern portion, it is necessary to make a CLOSE STUDY before planting 
TO DETERMINE whether certain Plants, Trees and Shrubs AHE HARDY 
in certain localities. 
TEMPERATURE ZONES 
In all types of planting, soil and temperature conditions are important 
factors to be considered. For the convenience of those WHO DO NTT 
KNOW, we have prepared an “Adaptability Chart,” which divides the 
Southwest into certain Temperature Zones, which are INDICATED BY 
Numbers from I to 6. In giving THE DESCRIPTION of the Plant Material 
found in THIS CATALOG, we are giving the numbers PRECEDING THF 
DESCRIPTION (for example, “Ter. I to 3”, etc.) to indicate THE ARE/'S 
where it would be SAFE TO PLANT certain Trees and Shrubs under NORMAL 
CPMinoN't. according to cr experience. 
NOTICE: If you do not find the stock you want listed, please write us 
and we may be able to supply you. We have many varieties in insufficient 
quantities to warrant listing. We invite correspondence and are ready to 
assist our patrons in every way we can. 
GRIFFING’S LANDSCAPE BOOK 
Page 5 
