ENCYCLOPHDIA OF GARDENING. 
CULTURE: Compost, two parts loam, one part peat & sand. Posi- 
tion, pots, tubs, or borders in plant stove, shoots trained to pillars or 
roof. Pot, March. Prune side shoots to within 2in. of base after 
flowering & cut away all weak ones. Water freely March to Sept., 
moderately aftorwards. Syringe daily March to Aug. Temp., March 
to Sevt. 70° to 85°; Sept. to March 55° to 65°. Propagate by cuttings 
of side shoots 3 in. long, removed with slight portion of stem attached, 
& inserted in well-drained pot of sandy soil in temp. 85° in summer. 
- SPECIES CULTIVATED: C. coccineum, scarlet, autumn, 20 ft., Madagascar ; 
grandiflorum, soarlet, May, 5 ft., Trop. Aftioa; purpureum, scarlet, Sept., 20 ft., 
Madagascar. 
Comfrey.—See Symphytum. 
Commelina (Blue Spider-wort; Day-flower)—Ord. Commelina- 
Ben Greenhouse & hardy herbaceous perennials. First introduced 
CULTURE OF GREENHOUSE SPECIES: Compost, equal parts 
peat, loam, leaf-mould, .& sand. Position, pots in sunny greenhouse. 
Pot, March. Water freely March to Sept., very little afterwards. 
Temp., March to Sept. 55° to 65°; Sept. to March 45° to 50°. 
CULTURE OF HARDY SPECIES: Soil, light, rich. _ Position, 
warm, sheltered, well-drained bed or border. Plant fleshy roots in 
April. Protect roots during winter on light soils with thick layer of 
ashes or manure. Lift’ roots in cold districts in Sept. & store away 
similarly to dahlias in frost-proof place, replanting in April. Pro- 
pagate by seeds sown 1-6in. deep in light soil in temp. 75° in March, 
transplanting seedlings outdoors in May to flower in Aug.; division of 
fleshy roots in April. : 
GREENHOUSE SPECIES: 0. africana, yellow, May, trailing, S. Africa; 
elliptica, white, July, 2 ft., Mexico. 
HARDY SPECIES: ©. ccelestis, blue, July, 18 in., Mexico; ccelestis alba, white; 
virginica, blue, July, 1 ft., Virginia. 
omparettia. — Ord. Orchidacee. Stove epiphytal orchids. 
First introduced 1836. ; 
CULTURE: Compost, sphagnum moss, fibry peat. Position, on 
blocks of wood suspended from roof in plant stove. Re-block, March or 
April. Water freely at all times, Temp., March to Sept, 65° to 85°; 
Sept. to March 60° to 70°. Resting pees none. Flowers appear in 
centre of new growth after resting. Propagate by division of plant in 
March. ' ae ; 
SPECIES CULTIVATED: C. coccinea, scarlet, Aug., 1 ft., Brazil; cryptocera, 
pink, 1 ft.; falcata, rose, May, 6 in., Mexico. 
Compass Plant (Silphium laciniatum).—See Silphium. 
Comptonia.—See Myrica. 
Conandron.—Ord. Gesneriacew. Hardy herbaceous perennial. 
First introduced 1879. - 
CULTURE: Soil, peat & loam. Position, fissures of moist, sheltered 
rockery. Plant, March or April. Protect in severe winters with cover- 
ing of dry litter. Propagate by seeds sown in well-drained pots of 
sandy peat & just covered with fine mould, in cold frame or greenhouse 
March or April; division of plant in March. : 
SPECIES CULTIVATED: O. ramondioides, pink, summer, 1 ft., Japan. 
Cone-flower.—See Rudbeckia. : : 
Cone-head.—See Strobilanthés.. _ eee 
Constantinople Nut (Corylus ie Fee Corylus. — 
Convallaria (Lily of the Valley; May Lily). — Ord. Liliacex. 
Hardy herbaceous perennial. ‘ 
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