14 LANDSCAPE GARDEN SERIES 



A true bulb, such as the Tulip, is a bud composed of fleshy scales. 

 A corm, such as the Gladiolus, is shaped like a bulb, but is solid. A 

 tuber, such as the Dahlia, is solid, but is a long fleshy root of different 

 shape from the Tulip or Gladiolus. 



The information that should be recorded as briefly as possible in 

 a plant classification can be grouped under the following heads: 



1. Name (All known scientific and common names). 



2. Form (Height, shape or silhouette, texture, density, method 



of branching) . 



3. Color (Leaf color, seasonal changes, duration). 



(Flower color, time, duration). 



(Fruit color, time, duration, special attraction). 



(Twig color, picturesque and protective features). 



4. Hardiness (Resistance to climatic conditions; rate of growth; 



soil, sun or shade requirements; liability to injury 

 by insects or diseases) . 



5. Use (Aesthetic and practical uses of proved success). 



For purposes of study, or for general record in a professional office, 

 it is an excellent plan to prepare a card file, in which the data above 

 outlined for each species may be entered on cards. Auxiliary files may 

 then be compiled in which the plants are arranged according to the 

 color of flower, color of leaf, use, or other qualities which may be 

 given first consideration in choice of species for a particular purpose. 



For quick reference in planting design, condensed lists of plants 

 adapted for various special purposes are most convenient. For example, 

 in planting a flower garden, lists of flowers of certain colors enable the 

 designer to determine quickly what plants will give him the desired color 

 scheme to perfection, the choice of any species being subject to approval 

 from considerations of height, time of bloom, hardiness, etc., which 

 can easily be determined from the general classification lists or from 

 special lists based on such qualifications. 



Bailey's Encyclopedia of Horticulture, descriptive nursery cata- 

 logues, and various books descriptive of plants, coupled with actual 

 observation the year round, are the best sources for study of plant 

 material. 



