436 THE PRINCIPLES OF FLORICULTURE 



WINDOW- AND PIAZZA-GARDENING 



There is a growing demand for plants which will grow in 

 limited areas. It may be in window-boxes, veranda- 

 boxes or in hanging-baskets for indoor or outdoor use. 

 Fortunately, there are certain species which are well 

 adapted for just this purpose. The soil should be care- 

 fully prepared, for the root systems, being confined in 

 limited areas, should have an abundance of plant food 

 in easily available forms. Careful attention should be 

 given to the watering of boxes or baskets, for plants so 

 grown demand much water, and are easily injured by 

 neglect. 



731. Plants suited for outside window-boxes. 



A. Winter. 



a. Center plants : 



Box (Ruxus sempervirens) . 



Dwarf forms of Thuja or Retinispora. 



Irish juniper (Juniperus communis var. hibernica). 



Swedish juniper (Juniperus communis var. suecica). 



Hemlock (Tsuga canadensis). 



Low-growing white pines (Pinus Strobus). 



b. Vines. 



English Ivy (Hedera helix). 



Trailing Evonymus (Evonymus radicans). 



B. Summer. 



a. Tall-growing upright plants : 

 1. Flowering : 

 Geraniums. 

 Petunias. 

 Begonias. 

 Stevia. 

 Cannas. 

 Lantanas. 

 Impatiens. 

 Swainsona. 

 Marguerites. 

 Salvias. 

 Hydrangeas. 



