SEEDS 



37 



Many perennials bloom the first year from seed; these may be 

 sown in early Spring. The other sorts, of which plants are wanted 

 for the succeeding year but which are not expected to bloom during 

 the current season, are sown in July or August. The late sown 

 perennials will be just germinating during the hot, dry season; 

 moisture must be supplied and some kind of screen (see figs. 7 and 8) 

 used to shade the bed, especially, when the seedlings are very small. 



The seedlings when transplanted may be placed in 2-inch or 

 2^2-inch pots or they may be planted in frames. (See fig. 6.) If 

 the rows are planted 5 inches apart ample room for their growth is 

 available by removing, from alternate rows, the plants for Fall or 

 early Spring sale. Some of the perennials remaining in the frames 

 may be left to bloom, as the rows will then be 10 inches apart. 



Fig. 6. Coldframe for sowing perennials. The first and second sections are provided 

 with sashes, the third has a lath screen for shade and the fourth is covered with a 

 straw mat for Winter protection 



AQUATICS FROM SEED 



Certain seeds of aquatic plants when not kept in water must be 

 artificially treated by acid or nicking. Sow each seed in a separate 

 "thumb pot, submerging the pots in tanks of warm water. Many 

 of the sorts, if started in February, flower the first year. Seeds 

 of the following water plants should be treated as suggested: 

 Acorus (Sweet Flag), Aponogeton (includes Oumrandra, the Lace 

 Leaf), Cabomba (Parrot's Feather), Caltha (Marsh Marigold), 

 Cyperus (Sedges and Umbrella Palm Grass), Eichhornia (Water 

 Hyacinth), Limnanthemum (Floating Heart), Limnocharis (Water 

 PPPy ) Ludwigia, Nelumbium (Egyptian Lotus), Nymphsea (Pond 

 Lily), Orontium (Golden Club), Ponlederia (Pickerel Weed), Sagit- 

 taria (Arrowhead), Typha (Cattail) andZiram'a (Water Oats). 



Many of these seeds may be sown in larger pots as other per- 

 ennials but they should be submerged. 



