ENCYCLOPHDIA OF GARDENING. 
Blush Wort.—See Aischynanthus. 
Bobartia (Bobart’s Iris)—Ord. Iridaceex. Half-hardy bulbous 
plants. Nat. Cape of Good Hope. First introduced 1810. Ht. 1 ft. 
CULTURE: Position, south bed or border well drained, or on 
rockery. Plant bulbs 3 in. deep & 3in. apart in Oct. Lift bulbs after 
flowering, dry & store away till planting time in cool place. Propagate 
by offsets planted & treated as large bulbs. 
SPECIES CULTIVATED: B. aphylla, white and purple, summer; filiformis, 
purple, summer; gladiata, yellow, summer; spathacea, yellow, summer. 
Bocconia (Plume Poppy; Tree Calandine).—Ord, Papaveracex. 
Hardy herbaceous perennials. Orn. foliage. Tirst introduced 1795. 
Leaves. finely cut, greyish. 
CULTURE: Soil, rich loamy, well manured. Position, open, sunny, 
sheltered from cold winds. Plant, April. Cut down flower stems after 
blooming. Propagate by cuttings of young shoots growing out of 
axils of leaves, inserted in small pots of sandy soil, temp. 55° under 
bell-glass, June to Aug.; by suckers removed from root, placed in pots 
in cold frame in July. Good plant for pot culture in cool greenhouse 
or window. Compost, two parts loam, one part leaf-mould & sand. 
Pot, March. Water freely spring & summer, moderately other times. 
SPECIES CULTIVATED: B. cordata, buff or whitish, July, 6 to 8 ft., China. 
Bog Arum (Calla palustris).—See Calla. 
Bog Bean (Menyanthes trifoliata).—See Menyanthes. 
Bog Berry (Vaccinium oxycoccus).—See Vaccinium. 
Bog Myrtle (Myrica fo eee Myrica. 
Bog Pimpernel (Anagallis tenella).—See Anagallis. 
Bog Trefoil (Menyanthes trifoliata)—See Menyanthes. 
Bog Viclet (Pinguicula vulgaris)—See Pinguicula. 
Boltonia (False Chamomile).—Ord. Composite. Hardy herba- 
ceous perennials. Nat. N. America. First introduced 1758. 
CULTURE: Soil, ordinary moist loam. Position, sunny or shady 
borders. Plant, Oct. or April. Propagate by division of roots in April. 
SPECIES CULTIVATED: B. asteroides, white, pink, July, 4 to 5 ft.; asteroides 
decurrens, violet, 4 ft. 
Bomarea.—Ord. Amaryllidacee. Greenhcuse climbing peren- 
nials. Flowering. First introduced 1806. 
CULTURE: Compost, equal pele peat, leaf-mould, loam, & sand. 
Pot or plant, March. Position, large pots, tubs, or beds, well drained. 
Water freely April to Sept., moderately other times. Temp., Sept. 
to March 45° to 50°; March to Sept. 55° to 65°. Propagate by seeds 
sown iin. deep in pots of light sandy soil in temp. 65° in March; divi- 
sion of roots in March. . 
SPECIES CULTIVATED: B. acutifolia, red, yellow, and green, autumn, 5 to 
6 ft., Mexico; Carderi, rose, autumn, 6 to 8 ft., Colombia; edulis, crimson, July, 
5 to 6 ft., Trop. America; patacoensis (Syn. B. conferta) carmine-rose, Aug. 
6 to 8 ft., Colombia. 
Bona-Nox (Ipomea Bona-nox).—See Ipomeza. 
Bongardia. — Ord. Berberidaceez. Hardy tuberous-rooted 
perennial. Flowering. Nat. Persia, Syria. First, introduced 1740. 
CULTURE: Soil, light, sandy. Position, south bed or border, well 
drained. Plant, Oct. or April. Protect in severe weather by covering 
with handlight or thick layer of cinder ashes. Propagate by division 
of tubers Oct. or April, or by seeds sown in shallow boxes of light soil, 
temp. 55° to 65°, in March, 
SPECIES CULTIVATED: B. Rawolfii, yellow, spring, 6 to 12 in. 
Borage.—See Borago. 
55 
