My EXPERIENCES WITH A FERN GARDEN 15 
the A. Capillus-Veneris froze out. Cheilanthes Ala- 
bamensis did very well by setting it among limestone 
rocks. Aspleniwm montanum I never succeeded in 
growing, although it grows only a half mile away on 
sandstone cliffs. I transferred it to my artificial cliffs 
and watered it regularly, but it always died in a few 
months. A. Bradleyi and A. pinnatifidum did a little 
better. I succeeded in getting one plant of each to 
adapt itself to my sandstone cliff. Onoclea sensibilis 
and Pteris aquilina proved to be almost a pest, and I 
had to cut back the roots, and pull out the fronds when- 
ever they got out of their range. Osmunda cinna- 
momea and OQ. regalis I set near the reservoir where 
it was damp and they grew so large and took up so 
much room, that I was obliged to transfer them to a 
drier corner, and give Dryopteris marginalis and D. 
spinulosa intermedia the damp location, where they 
paid well with the beautiful evergreen foliage they 
produced. 
I had one trouble to contend with which threatened 
Some of my ferns. A whitish parasitic mold developed 
close to the ground on the bottom of the fronds of Dry- 
opteris filix-mas and Asplenium angustifolium, and in 
a month or two the fronds of some of the plants withered 
and died, also killing the roots. I became alarmed for 
my choice ferns, but I soon discovered that a strong 
Solution of lime-sulphur and arsenate of lead applied 
to the ground about the roots of the infested fern would 
destroy the parasite. This lime-sulphur and lead 
Solution was what I had left from spraying my apple 
and peach trees, and I used it in the paste form. It 
Saved my ferns, however, and I was glad I had stumbled 
Onto the idea. ; 
Two ferns I did not succeed very well in growing 
Were Scolopendrium vulgare and Trichomanes radicans. 
I went to the South Pittsburgh station and dug up 
