ENCYCLOPEDIA OF GARDENING. 
PERENNIAL SPECIES: H. matrionalis (Sweet Rocket), white or lilac, May to 
July, 2 to 3 ft., 8. Europe, and its double white and purple-flowered varieties; 
violacea, purple, April to June, 2 ft., Asia Minor. Latter best grown a8 a biennial. 
Hessea.—Ord. Amaryllidaces. Greenhouse bulbous flowering 
plants. Deciduous. Nat. Cape of Good Hope. First introduced 1774. 
CULTURE: Compost, two parts sandy soil, one part leaf-mould or 
decayed cow manure, & little sand. Position, well-drained pots in cold 
frame, cool greetihouse, or window till growth begins, then remove to 
temp. 45° to 55°. Pot, Nov., placing five bulbs 3in. deep in a 5-in. 
pot. Cover pots with ccocoanut-fibre refuse or cinder ashes till growth 
begins. Water moderately from time growth commences till flowers 
fade, then gradually withhold, keeping bulbs quite dry from Sept. to 
Jan. Repot annually. Propagate by offsets treated as bulbs. 
oo ULTIVATED: H. crispa, pink, summer, 3 in.; gemmata, yellow, Aug., 
in. 
Heuchera (Alum-root; American Sanicle).—Ord. Saxifragacea. 
Hardy perennial herbs. Flowering & orn. foliage. First introduced 
1656. 
CULTURE: Soil, ordinary light rich or peaty; not suited for clay 
soils. Position, open sunny well-drained borders. Plant, Oct., Nov., 
March, or April. Propagate by division of roots or crowns, March to 
May; also by seeds sown in light soil in cold frames in spring, trans- 
planting seedlings into small pots, and planting out following spring. 
SPECIES CULTIVATED: H. americana, red, summer, 18 in., N. America; 
brizoides, pink, summer, 1 ft., hybrid; micrantha, yellow, summer, 2 ft., N. 
America; sanguinea, red, summer, 12 to 18 in., Mexico. There are several pretty 
varieties of this species. 
Hexacentris.—See Thunbergia. ; 
Hibbertia.—Ord. Dilleniacew. Greenhouse evergreen flower- 
ing climbers. Nat. Australia. First introduced 1816. 
CULTURE: Compost, equal parts loam & peat & little sand. Posi- 
tion, pots, tubs, or beds; shoots trained up 1afters. Pot or plant, 
Feb. or March. Prune straggling shoots, Feb. Water abundantly 
March to Sept., moderately afterwards. Temp. March to Oct., 55° 
to 75°; Oct. to March 45° to 55°. Propagate by cuttings of moderately 
firm shoots to 3in. long inserted in well-drained pots of sandy peat 
under bell-glass in temp. 55° to 65°, April to ay 
SPEOIES OULTIVATED: H.dentata, yellow, summer, 10 ft.; fasciculata, yellow, 
summer, 3 ft.; Readii, yellow, summer, 1 ft.; volubilis, yellow, summer, 10 ft. 
Hibiscus (Hemp Mallow; Musk Mallow; Rose Mallow; Malabar 
Rose; Blacking Plant; Rose of Sharon; Althwa frutex).—Ord. Mal- 
vaceew. Stove evergreen & ake deciduous shrubs, hardy annuals & 
perennials. Flowering & orn. foliage. First introduced 1596. 
CULTURE OF STOVE SPECIES: Compost, equal parts fibry peat 
& loam, with charcoal & sand. Position, well-drained pots or beds, 
with shoots trained to wall. Pot or plant, Feb. or March. Prune into 
shape, Feb. Water abundantly March to Oct., moderately after- 
wards. Temp., March to Oct. 65° to 75°; Oct. to March 55° to 65°. 
CULTURE OF PERENNIAL SPECIES: Soil, ordinary. Position, 
well-drained sunny border. Plant, Oct. or March. Cut down stems 
in Oct. 
CULTURE OF ANNUAL SPECIES: Soil, ordinary. Position, sunny 
beds or borders. Sow seeds in. deep in April where plants are to 
flower. 
CULTURE OF HARDY SHRUBBY SPECIES: Soil, rich, light loam. 
Position, sheltered, sunny, well-drained border. Plant, Oct. Prune 
after flowering, thinning out laa a dead wood only. 
