ENCYCLOPHDIA OF GARDENING. 
SPECIES CULTIVATED: A, natans (now known as Elisma natans), white and 
yellow, ae Britain; Plantago (Water Plantain), pink or rose, summer, Britain; 
ranunculoides, purple, May to Sept., Britain. 
Alkanet (Anchusa tinctoria).—See Anchusa. 
Allamanda.—Ord. Apocynacex. Stove climbing plant. Ever- 
green. First introduced 1785. 
CULTURE: Compost, two parts fibry loam, one part leaf-mould, 
charcoal, & coarse sand. Position, pot, tub, or planted in prepared 
border; shoots to be trained close to roof. Pot, Feb. Water freely 
April to Aug., then moderately. Temp., Sept. to March 60° to 70°; 
arch to Sept. 70° to 80°. Prune shoots, in Jan., to within one joint 
of main branch. Propagate, in Jan., by cuttings of shoots of previous 
year’s growth, 3 in. long, inserted in pots of sandy soil, temp. 80°. 
SPECIES CULTIVATED: A. cathartica, yellow, July, 5 to 10 ft., Trop. America; 
Chelsoni, yellow, summer, hybrid; grandiflora, yellow, June, 6 to 10 ft., Brazil; 
Schottii, yellow, Sept., 8 to 10 ft., Brazil, and its varieties, Hendersoni and mag- 
nifica; Williamsii, yellow, summer, hybrid. 
Alleghany Vine (Adlumia cirrhosa)—See Adlumia. 
Alligator Apple (Anona palustris)—See Anona. 
Alligator Pear (Persea gratissima).—See Persea. 
Allium (Chives; Leek; Onion; Shallot).—Ord. Liliaceer. A genus 
of hardy and greenhouse bulbous-rooted perennials. 
CULTUKE OF HARDY FLOWERING SPECIES: Soil, sandy loam. 
Position, sunny borders or rockeries. Plant bulbs 3 in. deep and 4 in. 
apart in Oct, or Nov. Mulch with rotten manure in summer. Propa- 
gate by seeds sown in cold frame in spring; offsets after flowering. 
CULTURE OF GREENHOUSE SPECIES: Compost, two parts loam, 
one part leaf-mould, and a little silver sand. Plant six bulbs in a 
4} in. pot in Oct. ver pots with cocoanut-fibre refuse or ashes in 
a cold frame till growth begins, then remove to a cool greenhouse. May 
be flowered in a cold house, or forced into flower in a temp. of 55° to 65°, 
Water freely whilst growing. After blooming gradually withhold water 
and keep dry and cool till new growth begins. Repot annually in Oct. 
Propagate by seeds in cold frame or cool house in spring; offsets at 
potting time. 
CULTURE OF ONION: Soil, light, rich, and deeply dug. Position, 
sunny part of garden. Manures, fowl, pig, cow, or horse dung, well 
decayed, and applied liberally in autumn; also 11b. kainit and 7 1b. 
of basic slag per square rod, applied at same time; or, where above 
manures cannot be liberally given, 31b, superphosphate, 1}1b. soda 
per square rod, applied ten days before sowing and 13 1b. of nitrate 
of soda per square rod when plants are 3in. high; or, 11b. nitrate 
of soda, 1b. of guano, 30z. kainit, and 30z. of sulphate of iron, 
half the above to be applied to a square rod when plants are 3 in. high, 
and remainder a month afterwards. Sow spring onions in March or 
April; autumn ones end of Aug. or early in Sept. Depth to sow, about 
3in. Distances apart for drills, 8in. Spring onions may also be sown 
in heat in Feb., hardening off seedlings cold frames in April, and 
planting out in May. Rows best to run from N, to 8. Firm soil 
essential. Transplant autumn-sown onions into rich soil following 
March. Thin seedlings out early to 8in. apart. Bend over the stems 
early in Aug. to promote ripening of the bulbs. Lift, dry thoroughly, 
& store away in cool, airy place in Aug. or Sept. Crop takes 24 weeks 
to reach maturity. Seeds retain their germinating powers for two 
15 
