ENCYCLOPHIDIA OF GARDENING. 
SPECIES CULTIVATED: G. volubilis (Syn. Scyphanthus elegans), yellow and 
red, summer, 8 ft., Chili. 
Grammatophyllum (Queen of the Orchids). — Ord. Orchid- 
acew. Stove epiphytal orchids. First introduced 1837. 
CULTURE: Compost, fibrous peat & charcoal. Position, large well- 
drained pots in light part of stove. Pot, Feb. or March. Water freely 
Feb. to bct., very little Oct. to Feb. Temp., Feb. to Nov. 65° to 75°; 
Nov. to Feb. 60° to 65°. Growing period, Feb. to Nov. Resting period, 
Nov. to Feb. Propagate by division of pseudo-bulbs at potting time. 
SPECIES OULTIVATED: G. fenzlianum, yellow‘and brown, summer, 4 ft., 
Amboyna; speciosum, yellow and purple, winter, 5 to 8 ft., Malaga. 
Granadilla (Passiflora quadrangularis).—See Passiflora. 
Grape Fern (Botrychium lunaria).—See Botrychium. 
Grape Hyacinth.—See Muscari. 
Grape Pear (Amelanchies vulgaris).—See Amelanchies. 
Grape Vine (Vitis vinifera)—See Vitis. 
Grass of Parnassus (Paruassia palustris).—See Parnassia. 
Gray Birch (Betula populifolia).—See Betula. 
Greek Valerian (Polemonium caruleum).—See Polemonium. 
Green Hellebore (Helleborus viridis)—See Helleborus. 
Green Man Orchis (Aceras anthropophora).—See Aceras. 
Green Spleen-weort (Asplenium viride).—See Asplenium. 
Green-winged Orchis (Orchis morio).—See Orchis. 
Greig’s Tulip (Tulipa Greigi)—See Tulipa. 
Grevillea (Silk-bark Oak).—Ord. Proteacez. Greenhouse hardy 
evergreen shrubs. Flowering & orn. foliage. First introduced 1790. 
CULTURE OF GREENHOUSE SPECIES: Compost, equal parts 
fibrous peat & turfy loam, one part silver sand. Position, well-drained 
pots in airy greenhouse, window, or dwelling-room. Pot, March or 
April. Water moderately Sept. to April, freely afterwards. Prune off 
points of shoots occasionally to induce bushy growth. Temp., March to 
Oct. 55° to 65°; Oct. to March 45° to 55°. 
CULTURE OF HARDY SPECIES: Soil, peaty. Position, sheltered 
shrubberies S. of England; against south walls other parts. Plant, 
Oct. or April. Prune, April. Protect in severe weather. 
PropaGateE greenhouse species by seeds sown } in. deep in well-drained 
pots of light soil in temp. 65° to 70° in March; cuttings of young shoots 
3in. long, with small portions of branches attached inserted in sandy 
soil in well-drained pots under bell-glass in temp. 75° to 80° in March, 
April, or May; hardy species by seeds sown 3 in. deep outdoors in March 
or April; layers in Oct. or Nov.; grafting in March or April. 
GREENHOUSE SPECIES: G. robusta, orange, summer, 10 to 20 ft., Australia; 
rosmarinifolia, red, summer, 6 ft., Australia. 
HARDY SPEOIES: G. juniperiana sulphurea, yellow, summer, 10 ft., Australia. 
Grey Poplar (Populus alba canescens).—See Populus. 
Griffinia (Blue Amaryllis)—Ord. Amaryllidacer. Stove bulbous 
flowering plants. Evergreen. First introduced 1815. 
CULTURE: Compost, two parts fibrous loam, one part peat, decom- 
posed sheep manure & sand. Position, well-drained pots on a bed or 
stage heated beneath to temp., 85° in plant stove. Pot, June or July. 
Press compost down firmly. Repotting not needful oftener than once 
every three or four years. Water moderately Oct. to April, freely 
afterwards. Syringe freely in summer. Topdress established plants 
annually in March with rich compost. Temp., March to Sept. 70° to 
80°; Sept. to Dec. 55° to 65°; December to March 65° to 75°. Pro- 
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