ENCYCLOPEDIA OF GARDENING. 
Temp., Sept. to March 40° to 50°; other times 50° to 60°. Propa- 
gate by offsets treated as advised for bulbs. : : 
SPECIES CULTIVATED: 8. grandiflora, purple and white, spring, 1 to 2 ft., 
8. Africa; tricolor (Syn. Ixia tricolor), orange, yellow, and black, May, 1 to 2 ft., 
8. Africa. For varieties see trade lists. Bee also the genus Dierama. 
Sparmannia (African Hemp).—Ord. Tiliacee. Greenhouse 
evergreen shrub. First introduced 1790. : 
CULTURE: Compost, two parts loam, one part peat, & little sand. 
Position, pots in light airy greenhouse, Sept. to June; sunny spot out- 
doors remainder of time. Pot, Feb. or March. Prune moderately 
close, Nov. to Dec. Water copiously, April to Oct.; moderately after- 
wards. Apply stimulants, April to Sept. No shade or syringing re- 
quired. Temp., March to Sept. 55° to 65°; Sept. to March 40° to 50°. 
Propagate by cuttings inserted singly in small pots filled with sandy 
soil under bell-glass in temp. 55° to 65°, spring or summer. ; 
SPECIES CULTIVATED: S. africana, white, summer, 10 to 15 ft., 5. Africa; 
africana flore pleno, double flowered. : 
Spartium (Spanish Broom).—Ord. Leguminose. Hardy deci- 
duous flowering shrub. First introduced 1548. 
CULTURE: Soil, ordinary. Position, sunny open borders or dry 
banks. Plant, Oct. to March. Propagate by seeds sown 4in. deep in 
drills in fine soil in sunny position outdoors, autumn or spring; cut- 
tings of young shoots inserted in sandy soil under bell-glass or in 
cold frame in summer. 
SPECIES CULTIVATED: 8S. junceum (Yellow Spanish Broom), yellow, summer, 
6 to 10 ft., S. Europe; junceum flore pleno, double flowered. 
Spathoglottis.—Ord. Orchidacez. Stove terrestrial orchids. 
First introduced 1837. 
CULTURE: Compost, equal parts leaf-mould & fibrous loam, or 
equal parts of leaf-mould, peat, sphagnum moss & silver sand. Repot 
in spring. Grow in partial shade. Water freely April to Oct, modc- 
rately afterwards. Growing period, spring & summer; resting period, 
winter. Flowers appear at top of last-made pseudo-bulb. Temp., 
March to Oct. 75° to 85°; Oct. to March 55° to 65°. Propagate by 
division in mn. 
SPECIES CULTIVATED: S. aurea, yellow and red, autumn, Malacca; Fortunei, 
yellow and red, autumn, Hong Kong; gracilis, golden, yellow, and red, winter, 
Borneo; kimballiana, golden, yellow, and red, summer, Borneo; Lobbii, sulphur 
yellow and red, autumn, Burma; plicata, rosy purple, summer, Malaya; Viellardii, 
white, rose, and red, autumn, New Caledonia. 
Spatium (Lewisia rediviva).—See Lewisia. 
Spear-flower (Ardisia crenulata)—See Ardisia. 
Spear Grass (Aciphylla squarrosa).—See Aciphylla. 
Spear Lily (Doryanthes Palmeri).—See Doryanthes. 
Spear Mint (Mentha viridis).—See Mentha. 
Spear-wort (Ranunculus lingua).—Sce Ranunculus. 
Specularia (Venus’s Looking Glass), — Ord. Campanulacee. 
Hardy annuals. 
CULTURE: Soil, ordinary. Position, sunny beds or borders. Sow 
seeds in April thinly 1-16 in. deep in patches or lines where required to 
grow. Thin seedlings when 1 or 2in. high to 3 to Gin. apart. Sup- 
port plants with small twigs when 3 to Gin. high. 
SPECIES CULTIVATED: S. hybrida (Syn. Campanula hybrida), the Corn Violet, 
bluo and lilac, July, 1 ft., Europe; pentagonia (Syn. Campanula pentagonia), blue, 
summer, 1 ft., Asia Minor; perfoliata, blue, June, 12 to 18 in., N. America; 
eee (Syn. Campanula Speculum), Venus’s Looking Glass, purple, summer, 1 ft., 
Surope, 
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