ENUYCLOPHDIA OF GARDENING. 
SPECIES CULTIVATED: P. caroliniana, white, summer, 6 in., N. America; 
palustris (Grass of Parnassus), white and green, summer, 6 in., Britain. 
Parochetus (Blue-flowered Shamrock; Shamrock Pea).—Ord. 
rN Hardy trailing herbaceous perennial. First introduced 
CULTURE: Soil, ordinary. Position, margins of sunny borders or 
on rockeries. Plant, Oct., March or April. Propagate by seeds sown 
1-16in. deep in light sandy soil in cold frame in March; division of 
ants in March. 
SPECIES CULTIVATED: P. communis, blue, March to June, 1 ft., Himalayas. 
Paronychia (Nail-wort; Whitlow-wort)—Ord. Llecebracezx. 
Dwarf-creeping perennial herbs. Jirst introduced 1879. Flowers, 
white, surrounded by silvery bracts. 
CULTURE: Soil, ordinary. Position, dry sunny banks or rockeries 
or for carpeting surfaces of beds. Plant, March to June. Propagate 
by seeds sown in sunny spot outdoors in March or April; division of 
plants, Oct. or March. 
haa CULTIVATED: P. argentea, 9 in., 8. Europe; capitata, 9 in., S. 
Paroo Lily (Dianella ce#rulea).—See Dianella. 
Parottia (Persian Iron-wood).—Ord. Hamamelidacew. Hardy 
deciduous trees & shrubs. Orn. foliage. First introduced 1848. 
Leaves, ovate, green in summer, rich crimson with shades of orange & 
yellow in autumn. 
CULTURE: Soil, good ordinary. Position, warm sheltered shrub- 
berries, S. cf England; against 8. walls in colder districts. Plant, 
Oct. to Feb. Prune shoots of trees grown against walls to within an 
inch of base annually in Feb. Propagate by seeds sown in, deep in 
well-drained pots of sandy soil in cold frame in autumn or spring; 
layering shoots in autumn. 
ene CULTIVATED: P. jacquemontiana, 10 ft., Himalayas; persica, 15 ft., 
ersia. 
Parrot-beak-plant (Clianthus puniceus)—See Clianthus. 
Parrot Tulip (Tulipa gesneriana laciniata)—See Tulipa. 
Parrot’s-bill of New Zealand (Clianthus puniceus).—See 
Clianthus. 
Parry’s Lily (Lilium Parryi).—See Lilium. 
Parsley (Carum petroselinum).—See Carum. 
Parsley Fern (Cryptogramme crispa).—See Cryptogramme. 
‘ Parsley-leaved Elder (Sambucus nigra laciniata).—See Sam- 
ucus 
Parsnip (Peucedanum sativum).—See Peucedanum. 
Partridge-berry.—See Gaultheria and Mitchellia. 
Partridge-breast Aloe (Aloe variegata).—See Aloe. 
Pasque-flower (Anemone pulsatilla)—See Anemone. 
Passifiora (Passion-flower).—Ord. Passifloracew. Stove green- 
house & hardy climbing plants. First introduced 1699. 
CULTURE OF STOVE SPECIES: Compost, equal parts fibrous loam 
& peat, one-fourth silver sand. Pot, Feb. or March. Prune, Feb., 
thinning out weak shoots & shortening strong ones one-third. Position, 
well-drained tubs or pots, or beds 18in. deep & 2ft. wide; shoots 
trained up rafters or walls; sunny. Water copiously March to Sept., 
moderately afterwards. Syringe twice daily April to Sept. Apply 
stimulants occasionally to healthy ae when in flower only. Temp., 
March to Oct. 65° to 75°; Oct. to March 55° ta 65°, 
309 
