LIST OF PLANTS ‘ie 
PENNYROYAL (Mentha Pulegium).—Only an occasional 
demand is made for this herb for culinary purposes. It 
is easily increased by divisions in autumn or spring, 
planted in a cool, moist soil in a partially shaded 
position. 
Pentas.—These pretty stove flowering plants propa- 
gate easily by cuttings of young. shoots in close, moist 
heat in spring and summer. 
PENTSTEMON.—These. handsome flowering plants for 
beds and mixed borders.can be raised from seed sown 
in gentle heat in March, ‘or outdoors early in June. 
Cuttings made from side-growths of choice sorts strike 
freely in August in a cold ‘frame, where they should 
remain for protection throughout the winter, being 
planted out the following April. 
PERILLA.—A good time to. sow the seed of this 
coloured-leaved half-hardy annual is the middle of 
March, in a little warmth, for planting out in May. 
PERNETTYA.—The pretty and various-coloured berries 
of P. mucronata come in for a full share of admiration 
at our autumn and winter exhibitions. The berries, 
when quite ripe, should be rubbed up in silver sand to 
remove the pulp and be sown in sandy peat in a cold 
frame and kept constantly moist. Shoots are also 
layered in March. 
PETUNIA.—Sow seed in gentle warmth in March, and 
prick out the young seedlings in pans or boxes as soon 
as big enough to handle. Young shoots of choice 
sorts strike root readily in a close frame in spring or 
autumn. : . 
PuHaAcELIA.—The pretty blue-flowered P. campanu- 
laria and P. tanacetifolia should be sown in April on a 
sunny border where they are intended to flower. 
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