The Water Garden 129 



PAPYRUS (Cyperus Papyrus). Soft and grass-like leaves a foot long 

 on top of each stalk, like a large umbrella plant. Tender; take 

 up after first frost in autumn to warm well-lighted tank; 4 to 6 feet 

 above. 



PARROT S FEATHER (Myriophyllum proserpinacoides). Slender feathery 

 plumes, very finely divided; 6 to 8 inches long. Roots in the earth 

 at the margin, and makes the brightest green tuft over the water. 

 Winter by putting a few pieces in a bottle of water. 



PICKEREL WEED (Pontederia cordata). Blue. 8 to 12 inches above the 

 water. In water i foot deep. See also NATIVE PLANTS, page 94. 



PITCHER PLANT (Sarracenia purpurea). 6 to 8 inches, with flower stalk 

 1 8 inches. Leaves tubular, pitcher-like, and curved; greenish 

 with reddish purple veins. For very wet borders. Flowers deep 

 purple. 



SWEET FLAG (A corns Calamus). For shallow lake, or wet places. 

 3 feet high. Light green leaves. Flowers yellow. Leaves die 

 at the top after spring growth, sometimes giving a very ragged 

 effect. A. gramineus and var. varifgatus, similar but dwarfer. 



THALIA (Thalia divaricata). Broad oval leaves I foot long resembling 

 canna leaves; 6 feet above. Will grow in a tub. Winter in warm 

 tank or half dry in a cool house. Flowers insignificant. 



UMBRELLA PLANT (Cyperus alternifolius). 3 feet. Similar to the 

 common umbrella plant of the greenhouses, which is in truth a smaller 

 variety. Easily propagated by division of the roots or by the leaf 

 cut off and inserted in water. 



WATER ARUM (Calla palustris). For banks. 6 inches. Mulch with 

 sphagnum moss. Resembles common calla. 



WATER ARUM (Peltandra Virginica). Arrow-shaped calla-like leaves. 



6 inches long. Green spathe 6 inches long in May, June; I foot 



above water. Green berries when ripe. Plant in mud under one 



foot of water. 

 WATER CLOVER (Marsilea quadrifolia). For pond edges. Growing 



in the earth or floating. Looks like a four-leaved clover. Useful 



for hiding pond margin. 

 WATER CRESS (Nasturtium officinale). For margins of clear streams 



6 to 8 inches. Flowers white, small, all summer. Easily raised 



from seed or cuttings. Good cover to keep fish cool. 



