AQUATICS ARTICHOKE 21 



the pond and covering with hay, straw or evergreen boughs. 

 It is well to supply an additional depth of water as a fur- 

 ther protection. 



Aquilegia. COLUMBINE. These hardy peren- 

 nials are general favorites for borders and rockwork. 

 Blooming early in the season, they may be said to head the 

 procession of the perennials. The ease with which they 

 may be cultivated, their freedom of bloom, their varied 

 colors and odd shape entitle them to the front rank among 

 hardy plants. They are propagated by division of the 

 plants in the spring or from seed sown in the fall. Seed- 

 lings maybe expected to bloom well the second year. They 

 require a moist, partially sheltered situation, with exposure 

 to the sun. The common wild Columbine (often called 

 "honeysuckle") is easily grown and is very attractive. 

 Clumps of Columbine should stand 12-18 in. apart. 2-3 ft. 

 high. 



Araucaria, or NORFOLK ISLAND PINE, is now 



sold in pots by florists as a window plant. The common 

 species (A. excelsa) is most excellent for this purpose, mak- 

 ing a symmetrical evergreen subject. It keeps well in 

 a cool window, or on the veranda in the summer. Protect 

 it from direct sunlight, and give plenty of room. If the 

 plant begins to fail, return it to the florist for recuperation. 



Argemone. See Prickly Poppy. 



Aristolochia, or DUTCHMAN'S PIPE. A strong, 

 woody twiner with very large, heavy leaves, forming a dense 

 screen and having peculiarly shaped flowers. But on& 

 species is considered hardy north, A. Sipho. This will grow 

 without special treatment and prove a satisfactory orna- 

 mental screen or porch plant. Reaches a height of 20 or 30 

 ft. Young plants need some protection in cold winters. 



Artichoke. A tall, coarse perennial of the thistle 

 tribe, producing flower- heads which are edible. When once> 

 established, it will last in bearing for a number of years.. 



