210 FRITZ BAHR'S COMMERCIAL FLORICULTURE 



most likely to affect particularly the outer edge of the planting. 

 There is no better fern to use in such locations than this Dicksonia 

 which will thrive not only in the shade, but in sunny positions as 

 well. It hardly ever grows over twelve inches in height and does 

 not form crowns as do the Aspidiums. It increases by means of 

 underground root stalks, and the more mellow the soil (made so 

 by mixing in a liberal amount of sand) , the more you encourage it 

 to grow and spread. 



ONOGLEA STRUTHIOPTERIS (Hardy Ostrich Fern) 



As the name indicates this is one of the tallest ferns we grow. 

 We find it not only in the New England States, but also, in splendid 

 form, away up in Minnesota as a partner to Goldie's Wood Fern. 

 The sterile fronds may attain a height of four feet and become 

 eight inches and more across. Plenty of humus in the soil where 

 you plant it will be appreciated by this variety. We find it in the 

 shade and again exposed to partial sunlight, doing almost equally 

 well in both locations. If you have a large planting to make, use 

 the Ostrich Fern in the center or as a background allowing not less 

 than from eighteen inches to two feet between the individual plants. 

 Its graceful, large fronds are most effective when given plenty of 

 room for development. 



OSMUND A CINNAMOMEA (Hardy Cinnamon Fern) 



If you have a wet spot, perhaps without drainage enough to 

 permit other ferns to do well, you can have good success with the 

 Cinnamon Fern which likes plenty of moisture. In fact it must 

 have it in order to do well. There are other more desirable ferns, 

 especially among the Aspidiums and Aspleniums, yet there is a 

 place for it if you have an order calling for an assortment, especially 

 in cases where you are not sure of perfect soil drainage which most 

 other varieties require to produce a permanent or lasting effect. 



POLYP ODIUM VULGARE (Hardy Cliff Fern) 



This evergreen fern is what you want if a low effect is desired. 

 It will form a dense mat with green fronds averaging about eight 

 inches long and if ferns are wanted for planting a rockery, Poly- 

 podium vulgare should be included. It is especially fine for that 

 purpose and quite hardy almost anywhere but don't plant it in 

 the Fall. If not established before Winter sets in, the plants usually 

 die out before Spring even if protected and even though you may have 

 no trouble with other varieties. 



PHEGOPTERIS HEXAGONOPTERA 



This fern is a good one to use in shady places where it will 

 grow fully twelve inches in height. For effectiveness it is well to 



