206 
THE FLOWER GARDEN. 
the next season. THe double sorts can only be increased by 
division in the manner just advised. They require a rich 
not too heavy soil, and partial shade to do well. Fork in 
plenty of well-rotted manure before planting. Once planted 
disturb the plants as little as possible unless it be desired to 
increase any special variety. 
Oxlip (Primula elatior). — The Oxlip of our meads is some- 
times grown in gardens. This is suposed to be a hybrid 
between the Primrose and the Cowslip. Anyway, it partakes 
of the characters of both. There is a curious form of it called 
Calycantha,with a leafy fringed calyx. Both may be grown 
similarly to the Polyanthus. 
All the species of primulas herein mentioned may be raised 
from seeds sown in light sandy soil in cold frames in spring, 
the seedlings, especially in the case of the species, being 
transplanted, when large enough to handle, into boxes or 
pans, and finally into small pots, until they are sufficiently 
strong to plant out permanently. They may also be increased 
by division of the roots after flowering. 
Prunella. (Self-heal). — A genus of hardy perennials, be- 
longing to the Lavender order (Labiatse). The plants are 
of dwarf growth and suitable, only for carpeting bare moist 
spots in shady borders or woodland gardens. The only species 
worthy of note is P. grandiflora, a native of Europe. It 
grows 6in. high, and bears purple flowers in July and August. 
Alba is a pretty snowy-white variety ; laciniata, a purple- 
flowered variety, with cut foliage ; and Webbiana, a showy 
crimson-purple flowered form well worthy of culture. Plant in 
autumn or spring in ordinary medium, moist soil. Increased 
by division in autumn. 
Pulmonaria (Lungwort). — Hardy perennials, with 
rough, green and white speckled foliage and blue or reddish 
flowers. They belong to the Borage order (Boraginaceae). The 
species worthy of culture are P. angustifolia (Blue Cowslip), 
a native of Britain, growing ift. high, and bearing pink or 
blue flowers in early summer ; P. saccharata, a native of 
Europe, growing ift. high, and bearing pink flowers ; P. 
officinalis, a native species, bearing red or violet flowers, 
and growing ift. high. There is a white form of the latter 
called alba. These plants are suitable for massing or group- 
ing in shady woodland or other border, or the ordinary mixed 
border. Ordinary soil. Plant in autumn or spring. Increased 
by division in spring; also by seeds sown outdoors in a shady 
border in Apiil. 
