ENCYCLOPEDIA OF GARDENING. 
Speedwell.—See Veronica. 
Spergula.—Sce Sagina. 
Spice-bush (Lindera Benzoin).—See Lindera. 
Spider Fern (Pteris serrulata!,—See Pteris. 
Spider-flower.—See Cleome. 
Spider Orchis (Orchis arachnites).—See Orchis. 
Spiderwort (Tradescantea virginiana).—See Tradescantea. 
Spigelia Carolina Pink; Maryland Pink-root), — Ord. Lo- 
ganiacew. Hardy herbaceous perennials. First introduced 1694. 
CULTURE: Soil, equal parts loam, leaf-mould, peat, & sand. Posi- 
tion, partially shady border containing 2ft. in depth of above com- . 
post. Plant, March or April. _ Water copiously during summer. 
Propagate by division of roots, March or April. 
SPECIES CULTIVATED: 8. marilandica, red and yellow, summer, 1 ft., N. 
America. 
Spignel (Meum athamanticum).—See Meum. 
Spinach (Spinacia oleracea).—See Spinacia. 
Spinacia (Spinach). — Ord. Chenopodiacee. Hardy annual. 
Esculent-leaved vegetable. First introduced 1568. 
CULTURE: Soil, deep, rich moist ordinary for summer spinach; 
rich, moderately dry for winter kind. Position, sunny. Sow seeds 
of summer spinach at intervals of a fortnight, Feb. to Aug., in drills 
lin. deep & 12in. apart; winter spinach, Aug. & Sept. in drills lin. 
deep & 15in. asunder. Thin winter spinach to 6in. apart when three 
leaves form. Manures: 131b. kainit, 14]b. sulphate of soda; 14]b. 
sulphate of ammonia; 21b. superphosphate per sq. rod, applied when 
plants are 2in. high. Seeds germinate in 10 to 15 days; retain their 
germinating powers for 5 years. Crop reaches maturity 11 weeks after 
sowing. 
Wie eae Cuitrure: Soil, deep, moist & cool; light soils unsuit- 
able. Manures: Well-rotted dung at rate of 12 tons & superphos- 
phate 3 tons per acre applied just before sowing. When plants appear 
apply lcwt. of nitrate of soda per acre. Sow seeds lin. deep in drills 
lit. apart. Sow summer spinach in Feb., & successional batches at 
intervals of a fortnight; winter spinach in Aug. Quantity of seed 
required per acre, 3lb. Market large leaves only in bushel baskets. 
Average yield per acre, 500 bushels. Average prices per bushel, 1s. to 
5s 
SPECIES CULTIVATED: S. oleracea glabra (Summer Spinach), 2 ft., S.E. 
Europe; oleracea spinosa (Prickly or Winter Spinach). 
Spindle-tree (Euonymus europzus).—See Euonymus. 
Spirzea (Meadow Sweet).—Ord. Rosacew. Hardy deciduous & 
evergreen flowering shrubs & herbaceous perennials. 
CULTURE OF HARDY HERBACEOUS SPECIES: Soil, ordinary 
rich, well manured. Position, moist, partially shady or sunny 
borders; margins of streams, etc., for S. Ulmaria, astilboides, palmata, 
kamtschatica, and Aruncus. Plant, Oct., Nov., March or April. Top- 
dress annually in April with decayed manure. Water copiously in 
dry weather. Lift, divide, & replant every three or four years, 
CULTURE OF DECIDUOUS AND EVERGREEN SPECIES: Soil, 
good ordinary or loamy.. Position, open sunny borders or shrubberies. 
Plant, Sept. to March. Prune straggly shoots moderately close 
directly after flowering. 
CULTURE OF 8S. ASTILBOIDES IN POTS: Compost, equal parts 
loam & leaf-mould. Pot roots, Oct. or Nov., singly in 5 or Gin. pots. 
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