92 HARDY PERENNIALS 
are Artemisia abrotanum and absinthium, both 
with cut leaves and aromatic odour. There is also 
A. stelleriana, a plant with silvery foliage, which 
thrives best when its roots can ramify amidst lime- 
stone rubble and sandy soil. The commoner species 
which were first named require no particular cultural 
care. In fact, almost any piece broken off an old 
plant and firmly embedded in the soil will grow, 
and shed its fragrance around, and A. abrotanum 
is an admirable plant for a corner by a summer- 
house or garden seat where one seeks repose at the 
end of a summer's day. 
A plant of quite different character to the foregoing 
is Artemisia lactiflora, which throws up woody stems 
to a height of four or five feet, surmounted in Autumn 
by spirsea-like plumes of milky white flowers. The 
foliage of the plant is large, deeply lacerated, and 
amply clothes the full length of the substantial stems. 
This is a grand plant to grow in positions where 
its creamy flowers may stand out against vines and 
shrubs that assume brilliant Autumn tints. Spring 
is the best time to transplant, and at this season 
stock may be increased by division of the clumps. 
Asclepias. — ^There are two species of Asclepias 
worthy of note. A. tuberosa is an extremely beauti- 
ful plant which throws up leafy stems to a height 
of fifteen or eighteen inches, each bearing an umbel 
of vivid orange flowers. There is nothing quite like 
Asclepias tuberosa, its appearance being rather 
that of an exotic bulbous plant than a hardy border 
