ENCYCLOPHD14A OF GARDENING. 
GREENHOUSE SPECIES: H. gardnerianum, lemon-yellow, summer, 4 ft., 
Himalayas. 
Hedysarum (French Honeysuckle).—Ord Leguminose. Hardy 
perennial herbs and shrubs. First introduced 1596. 
CULTURE: Soil ordinary. Position, sunny rockeries, banks, or 
slopes for dwarf elena sunny well-drained borders for tall species. 
Plant, Oct., March, or April. Cut down flower stems in Oct. Pro- 
pagate by seeds sown 3 in. deep outdoors in April, transplanting seed- 
lings in June to final position; division of roots, Oct. or April. 
PERENNIAL SPECIES: H. coronarium (French Honeysuckle), red, summer, 
3 to 4 ft., S. Europe; coronarium album, white; Mackenzi, rosy purple, June, 
2 to 3 ft., N. America. 
_ SHRUBBY_ SPECIES: H. micro-calyx, purple, June, 3 ft., Himalayas; multi- 
jugum, red, June, 4 ft., Mongolia. : 
Hedyscepe (Umbrella Palm).—Ord. Palmacez. Stove palm. 
Orn. foliage. A good room plant. Leaves, feather-shaped, green. 
CULTURE: Compost, equal parts loam & peat, little silver sand. 
Position, well-drained pots in shady plant stove. Pot, Fel., March, or 
April. Water freely March to Oct., moderately afterwards. Syringe 
twice daily March or Sept. Temp., March to Sept. 70° to 85°; Sept. to 
March 60° to 65°. Propagate by seeds sown 1 in. deep in light soil, in 
temp. 70° to 80°, in Feb. or March. 
SPECIES CULTIVATED: H. canterburyana (Syn. Kentia canterburyana), Lord 
Howe’s Island, 
Helen-filower (Helenium autumnale)—See Helenium. 
Helenium (Helen flower; Sneeze-wort ; Sneeze-weed).—Ord. Com- 
ve Hardy herbaceous perennials and annuals. First introduced 
1729. 
CULTURE OF PERENNIAL SPECIES :Soil, ordinary rich. Position, 
sunny well-drained borders. Plant, Oct., Nov., March, or April. Cut 
down flower stems in Oct. Flowers exceedingly useful for cutting. 
Propagate by seeds sown }in. deep outdoors in April, transplanting 
seedlings in June or July; division of roots in Oct. or March. 
CULTURE OF ANNUAL SPECIES: Soil, ordinary. Position, 
sunny borders. Sow seeds in patches in borders in March or April. 
PERENNIAL SPECIES: H. autumnale, yellow, July to Oct., 3 to 5 ft., N. 
America; autumnale pumilum, 1 ft., autumnale striatum (Syn. Grandicephalum 
striatum), yellow and brown, 4 ft.; Bigelovii, yellow and brown, Aug. to Oct., 
4 ft., California; Bolanderi, yellow and brown, summer, 18 in., California; 
Hoopesii, yellow, summer, 2 ft., N. America. 
ANNUAL SPECIES: H. setigerum (Syn. Ambyolepis setigera), yellow, summer, 
1 ft., Texas. 
Helianthemum (Sun Rose; Rock Rose).—Ord. Cistinacex. 
Hardy flowering shrubs. Evergreen. 
CULTURE: Soil, light sandy. Position, sunny banks or rockeries. 
Plant, Oct., March, or April. Prune into shape, March. Propagate 
by seeds sown 1-16in. deep in bed of light soil outdoors in April; 
cuttings of shoots, 1 to Zin. long, inserted in well-drained pots of sandy 
soil in cold frame in Aug. or Sept.; division of plants in Oct. or April. 
SPECIES CULTIVATED: H. formosum, yellow, June 3 to 4 ft., Portugal; 
ocymoides, yellow, June, 2 ft., 8. Europe; vulgare, yellow, June, trailing, and its 
numerous double and single varieties. 
Helianthus (Sunflower; Jerusalem Artichoke).—Ord. Composite. 
Hardy annual or perennial herbs; tubers of Jerusalem Artichoke 
edible. 
CULTURE OF ANNUAL SPECIES: Soil, ordinary. Position, sunny 
borders. Sow seeds jin. deep in April where plants are to flower, or 
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