HARDY EXOTIC FLOWERING PLANTS, 157 
Catch-fly, Silene.—Dwarf or spreading plants, allied to the pinks, 
and generally with white or rosy flowers, The choice mountain kinds, 
such as S, Lagascee, alpestris, Schafta, etc. are among the most charm- 
ing subjects that can be naturalised on rocky places or banks, associated 
with very dwarf subjects. Such fine annual or biennial kinds as 
S. Armeria or S. pendula are among the best for this purpose, and 
might be easily established by scattering a few seeds in such places, 
Bloodwort, Sanguinaria canadensis. —This little plant, which 
abounds in the woods of Canada and North America, and which is 
very rarely indeed seen well grown in our gardens, will thrive under 
the branches of deciduous trees as well as the winter aconite, and in 
spring will produce an effect as beautiful as singular. 
Squill, Scilla.—Several kinds of Scilla, closely allied to the 
common bluebell, would do quite as well in our woods as that well-. 
known native plant, notably 8, campanulata, S. bifolia, S. sibirica, ete. 
Bifolia and sibirica would be better on sunny banks or sheltered 
fringes of shrubberies with a good aspect. The tall kinds would do in 
woods or copses like the bluebell. With the dwarfer squills might be 
associated the grape hyacinth and the amethyst hyacinth (Hyacinthus 
amethystinus). 
Comfrey, Symphytwm—Herbaceous plants of the borage order, 
usually vigorous, and with handsome blue flowers. One of the hand- 
somest spring flowers is Symphytum caucasicum, and it is also one of 
the easiest things to naturalise, running about with the greatest freedom 
in shrubby or any wild places. Coarse kinds, like S. asperrimum 
(unfit for garden culture), thrive apace among the largest plants in 
wild places, and there look quite beautiful when in flower. 
Scabious, Scabiosa, Cephalaria, Knautia.—Sometimes handsome 
and usually free-growing herbaceous plants, bluish, purplish, or 
yellowish in tone. Among these may be seen, in botanic and other 
gardens, plants suited for naturalisation, but scarcely worthy of a place 
in the garden. The fine 8. caucasica would thrive amidst coarse 
vegetation in good soil, as would the Knautias. 
Stonecrop, Sedwm.—Minute and usually prostrate plants, mostly 
with white, yellow, or rosy flowers, and occurring in multitudes on 
most of the mountain chains of northern and temperate countries. 
There are few of these interesting and sometimes very pretty plants 
that would not grow on the top of an old wall, or thatched house, or 
stony bank, or bare ground, as well as our common Stonecrop. All 
grow in any soil, are as easily increased as any weed, and grow any- 
