88 
THE HOME GARDEN. 
ten years. The walls were entirely covered with ivies, 
planted either in casks or in square boxes about eighteen 
inches high. There were at least a dozen ivies that locked 
arms as they grew, and made the circuit complete. One 
side of the outlook, being uglier and more conspicuous 
than the remainder, was fitted with a slight wooden scaf¬ 
folding, painted green, twelve feet high in the center, with 
side pieces attached to the walls and upright laths nailed to 
the garden boxes below. Ivy did the rest by covering the 
scaffolding so closely that nothing else was visible. 
Boxes for roof gardening should be made of the strong¬ 
est wood, and several small ones are preferable to one large 
one. Blocks must be placed underneath to prevent the 
wood from resting on the lead or stone, and a fresh coat of 
paint once a year is a great improvement. A thorough tar¬ 
ring inside will also make them more durable. The bot¬ 
tom of each box should have six or eight holes for the 
escape of superfluous water, and a layer of broken pottery 
should be put in before they are filled with earth. Boxes 
are recommended, instead of flower pots, because the latter 
would soon be roasted on a roof. To keep them in good 
condition, the soil should be entirely changed every two 
years, or partially so every spring. 
A very pretty arrangement for a terrace garden is to 
begin with a roof, which can be formed of some quickly 
growing climber supported by trellis work on a central col¬ 
umn of wood. This might pass through a round table, 
which could be used for books or work. If the roof is over 
an L, one side will be occupied by the wall of the house 
with doors and windows opening upon it. Each end may 
be arched by a trellis work of wood or wire covered with 
vines, and the inevitable hanging-basket suspended from 
the center. A row of boxes on the inner edge of the 
balustrade will contain such plants and vines as are best 
suited to that particular exposure. The corners may be 
