ENCYCLOPEDIA OF GARDENING. 
June; by cuttings of young side shoots inserted in pots of 
sandy soil under bell-glass or hand-light in shady position outdoors 
in Sept., protecting cuttings in heated greenhouse until following 
April, then planting out; by division of old plants in April. 
SPECIES CULTIVATED: Z. californica, scarlet, autumn, 1 ft., California; cali- 
fornica grandiflora, large flowered. 
Zea (Maize; Indian Corn).—Ord. Gramineex. MHalf-hardy an- 
nual. Orn. foliage. First introduced 1562. Leaves, narrow, grass- 
like; green or variegated with white. 
CULTURE: Soil, ordinary. Sow seeds fin. deep & lin. apart in 
light rich soil in well-drained pots or boxes in temp. 55° to Gov, Feb. 
or March; ,transfer seedlings when 2in. high singly into »2-in, pots, 
then into 44-in. pots. Place in cold frame to harden in May & plant 
outdoors in June. May also be grown in pots in compost of equal 
parts good loamy soil & leaf-mould, & little sand. Water freely. 
SPECIES CULTIVATED: Z. Mays, 3 to 4 ft., Paraguay; Mays variegata, 
variegated. 
Zebra Plant.—See Calathea. 
Zebrina.—Ord. Commelinacee. Greenhouse herbaceous trailing 
perennial. Orn foliage. First introduced 1849. Leaves, oval oblong; 
dark green, striped white above, purplish beneath. Stems creeping. 
CULTURE: Ses aed equal parts loam, leaf-mould, & sand. Posi- 
tion, in pots or baskets suspended from roof, or in beds under stage 
or on rockeries. Pot or plant, Jan. to April. Water freely, March 
to Oct.; moderately afterwards. Shade from strong sunshine. Temp., 
40° to 50° Oct. to April; 55° to 65° April to Oct. May be growa 
in windows as a pot or basket plant. Protect from frost in winter. 
Propagate by cuttings of young shoots inserted in light soil under 
a bell-glass in above temp., March to Oct 
SPEQIES OULTIVATED: Z. pendula (Syn. Tradescantea zebrina), purple, sum- 
mer, Mexico; pendula tricolor, leaves variegated with white, green, and red. 
Zelkowa (Water Elm; Siberian Elm).—Ord Urticacee. Hardy 
~ deciduous trees of no special merit. Closely allied to the clms. 
CULTURE: Soil, deep loam. Position, mixed shrubberies or side of 
water-courses. Plant, Oct. to Feb. Propagate by seeds sown out- 
doors in autumn or spring; grafting in March. 
SPECIES CULTIVATED: Z. acuminata (Syn. Ulmus Keaki), 30 to 40 ft.; 
crenata (Syn. Ulmnus polygana), Siberian Elm, Siberia, 40 ft.;  Vesebaffeltii (Syn. 
Ulmus Verschaffeltii), 30 ft. 
Zenobia.—Ord. Ericacee. Hardy evergreen flowering shrub. 
First introduced 1800. 
CULTURE: Soil, peat or sandy loam. Position, moist sheltered 
borders. Plant, Sept., Oct., March, or April. Propagate by layering 
in Sept. or Oct. 
SPEOIES OULTIVATED.—Z. speciosa, white, summer, 3 to 4 ft., N. America; 
speciosa pulverulentea, leaves whitish. 
Zephyranthes (Zephyr Flower; Atamasco Lily; Peruvian 
Swamp Lily; Flower of the West Wind).—Ord. Amaryllidacee. Hardy 
deciduous bulbous flowering plants. First introduced 1629. 
CULTURE OF HALF-HARDY SPECIES: Soil, ight sandy loam. 
Position, well-drained sunny beds, borders, or rockeries. Plant, Aug. 
to Nov., placing bulbs 3 to 4in. deep & 4 in. apart. Protect in winter 
by « layer of cinder ashes. Lift & replant only when bulbs show 
signs of deterioration. 
CULTURE OF HARDY SPECIES: Compost, two parts loam, one 
part peat, leaf-mould, & silver sand. Position, well-drained pots in 
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