ENCYCLOPHADIA OF GARDENING. 
Colossea), pink and white, 10 to 12 ft., S. America; suavolens, white, summer, 2 ft., 
8. America; wigandiodes, yellow and white, summer, 8 ft., 8. America; Sandere, 
red, pink, carmine, etc., summer, 2 to 3 ft., hybrid. 
Nierembergia (Tall Cup-flower; Trailing Cup-flower).—Ord. 
Solanacew. Hardy and half-hardy creeping perennial herbs. J'irst 
introduced 1831. 
CULTURE OF HARDY SPECIES: Soil, equal parts sandy loam & 
leaf-mould. Position, sunny or moist border or ledges of rockery. 
Plant, Oct., March, or April. Water freely in dry weather. Top- 
dress annually in March with decayed cow manure. Protect in very 
severe weather with covering of litter. 
CULTURE OF HALF-HARDY SPECIES: Compost, two parts sandy 
loam, one part well-decomposed cow manure & one part sand. Posi- 
tion, well-drained pots or pans in shady part of greenhouse or cold 
frame all the year round, or outdoors in shady spot, May to Oct. Pot, 
Feb. or March. Water freely, March to Sept., moderately after- 
wards. Propagate by seeds sown in light sandy soil in temp. 55° to 
65°, Nov. to April; cuttings inserted in sandy soil under bell-glass in 
shady part of cool greenhouse in Aug., transferring when well rooted 
sine ty into 2-in. pots, & placing in light airy position in greenhouse or 
window. 
HARDY SPECIES: N. rivularis (cup Sewer), white, summer, 6 in., S. America. 
HALF-HARDY SPECIES: N. calycina, yellow, July, 6 in., S. America; frutes- 
cens, blue, summer, 18 in., S. America; frutescens atroviolacea, violet, 1 ft.; 
Veitchii, lilac, summer, 6 in., 8. America; gracilis, white and purple, summer, 
6 to 9 in., 8. America. 
Nigella (Fennel-flower; Devil-in-a-bush; Love-in-a-mist ; Love-in- 
a-puzzle).—Ord. Ranunculacee. Hardy annuals. First introduced 
1548. Flowers surrounded by a green mossy involucre. Foliage, 
green, graceful, feathery. 
CULTURE: Soil, ordinary. Position, sunny open beds or borders. 
Propagate by seeds sown jin. deep in lines, bands or masses in March 
or April; thin seedlings out 6in. apart each way, May or June. 
SPECIES CULTIVATED: N. damascena, blue, summer, 1 to 2 ft., Asia Minor; 
damascena flore-pleno, double, blue; damascena alba, white; N. hispanica, blue, 
summer, 1 to 2 ft., Spain. 
Night-blooming Cactus (Cereus grandiflorus).—See Cereus. 
Night-scented Stock (Hesperis tristis)—See Hesperis. 
Nine Bark.—See Neillia. 
Niphobolus.—See Polypodium. 
Nipple Cactus (Mamumillaria bicolor).—See Mammillaria. 
Noble Silver Fir (Abies nobilis)—See Abies. - 
Noisette Rose (Rosa indica noisettiana).—See Rosa. 
Nolana (Chilian Bell-flower). — Ord. Convolvulacer. Hardy 
annuals. First introduced 1761. . 
CULTURE: Soil, ordinary. Position, open sunny beds, borders or 
rockeries. Propagate by seeds sown 1-16 in. deep in patches in March 
or April where plants are required to grow, thinning seedlings to 2 or 
3in. apart in May or June. 
SPECIES CULTIVATED: N. atriplicifolia, blue and white, summer, trailing; 
Peru; lanceolata, blue, white, and green, summer, 6 in., Peru; paradoxa, white, 
summer, 12 to 18 in., Peru; prostrata, blue, summer, trailing, Chili; tenella, pale 
blue, trailing, summer, Peru. 
None:so-Pretty (Saxifraga umbrosa).—See Saxifraga. 
Nootka Fir (Pseudotsuga Douglasii)—See Pseudotsuga. 
Nootka Sound Arbor-vitze (Thuya plicata).—See Thuia. 
Nootka Sound Cypress (Cupressus nootkatensis). — See 
Cupressus. 
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