LIST OF PLANTS 151 
the most popular flowers of our gardens. Their 
propagation is chiefly effected by offsets, which are 
freely produced by many kinds, and should be taken off 
in July or August when dormant. If these are planted 
in suitable soil and grown on, they flower in one or two 
years. Seedlings take from three to five and even six 
years before flowering. The seed should be sown as 
soon as ripe in pans of sandy loam in a cold frame, and 
the seedlings transplanted about an inch apart the 
following year outside in a shady border. Their full 
merit cannot generally be determined from the first 
flowers, so that the bulbs should be grown on another 
season to obtain a true idea of their value. 
NASTURTIUM.—See Tropzolum. 
NECTARINE.—These esteemed fruit-trees are in nearly 
all cases budded on seedling stocks of Mussel, St. Julien, 
and White Pear Plum. Care must be taken that a 
wood and not a blossom bud is selected. In July 
and August a ‘‘ dormant” bud, in April and May a 
‘** pushing ” bud, is used from shoots cut off early in 
the season and retarded by burying them in sand in a 
cool north border. Whip and crown-grafting. can be 
done in March, but these methods are seldom resorted 
to now. : 
Nemesia.—N. strumosa and its pretty varieties are 
very desirable plants with abundant flowers of many 
pleasing shades of colour. The seed should be sown in 
very gentle heat for either pot culture or planting out in 
June. Seed may also be sown on a warm, sunny border 
outside at the end of April or beginning of May. 
NemopuiLta.—The charming blue N. insignis and 
other sorts are easily raised for summer flowering by 
sowing seed in March or April, and for spring flowering 
