dragon’s head. 
77 
perennials are easily grown in most garden soils, and 
should be planted in bold groups for effect. The 
favourite kind is one called Harjour Crewe, otherwise 
known as T). plant ag ineum excelsum. It grows about 
5 feet high, having broad heart-shaped and coarsely- 
toothed leaves, and brilliant golden yellow flowers 
from March to October. A small form is represented 
on Plate 16, fig. 45. Other kinds of Leopard’s Bane 
are austriacum, 1 to 2 feet ; caucasicum, 1 foot ; Clusi, 
1 to 2 feet; Columnae, 2 feet; and parclalianches, 
2 to 3 feet — all with yelloAV blossoms similar to those 
represented in the picture. The easiest way to 
increase the plants is by division in spring. 
DRACOCEPHALUM [Dragon's Head). — These dis- 
tinct looking plants of the Dead Nettle family grow 
well in any good garden soil, but they like positions 
that are partially shaded from the mid-day sun. 
The most ornamental perennial kinds are baikalensis, 
1 to lg feet high with blue flowers ; grandiflorum (or 
altaiense ) 1 foot, blue ; imberbe, 6 inches, lilac-blue ; 
Ruprechti, 1 foot, light blue or rose purple ; Ruyschia- 
num, 1 to 1^ feet, purple blue, and its superior variety 
japonicum, with violet-blue, spotted flowers ; and 
speciosum, 1^ feet, purple-blue or lilac-spotted. The 
flowers usually appear from May and June to August. 
Closely related to the Dragon’s Heads are the Phy- 
sostegias or False Dragon’s Heads, still largely known 
as Dracocephalum ; they require the same treatment. 
They are much taller plants, however, and spread more 
rapidly by means of their creeping roots. The best 
known kinds are P. imbricata, 3 to 6 feet high, with 
dense spikes of soft pinkish-purple dotted flowers, 
