12 
The Garden Magazine, September, 192P 
with white flowers in great profusion. It may be flowered in 
February and forced two successive years. Then it should have 
one year in the nursery. Very little pruning is necessary. 
Ceanothus: Several are valuable for their bright blue flowers. 
They require to be grown in pots, in rich soil and pruned hard 
after flowering. The protection of a cold house or frame should 
be given on the approach of win- 
ter. C.divaricatus, of thick bushy 
growth, and C. papilosus, pale 
blue, are two of the best. 
Chionanthus virginica: The 
Fringe Tree will have loose pan- 
icles of flowers by Easter if not 
forced too hard. 
Choisya ternata: This may 
be had in flower with ordinary 
treatment at Christmas. 
Corylopsis: The catkin-like 
inflorescence of C. parviflora 
(primrose yellow) and C. spicata 
(yellow with conspicuous red 
anthers) may be had in February. 
Both are twiggy bushes, and re- 
quire no other pruning than an 
occasional thinning. 
Crataegus: Red and white 
Hawthorn, both double and sin- 
gle, are easily forced, and make 
charming plants for decorative 
purposes. While it is possible to 
force specimens of considerable 
dimensions, the neatest and most 
suitable are those grown as bushes 
from 3 to 4 feet high. During 
summer the shoots should be 
pinched back to form spurs from 
which the flowers are produced. 
They may be flowered in the same 
pots for several years, but require 
an occasional rest in the nursery. 
Cytisus: Favorites with all gar- 
deners. Standards are usually worked on Laburnum stocks, 
but require frequent renewal. When bush plants are used they 
are best when on their own roots. After flowering they require 
to be hard cut back to prevent their becoming leggy. 
Daphne: The fragrant flowers of several species may be had 
from December on through January and February with very 
little heat. Alternate years in the nursery is a necessity. 
Daphne Cneorum has heads of small red flowers on every shoot. 
D. Dauphini has fragrant white flowers shaded purple. D. 
Mezereum is red, pink, or white flowered and sweetly scented. 
Deutzia: When subjected to excessive heat these require to be 
rested alternate years. Moderately forced they will last three 
successive years. D. crenata flowers in racemes 6 inches long. 
D. gracilis is most floriferous and useful either as a plant for 
decorative purposes, or for cutting. D. Lemoinei, a cross be- 
tween gracilis and parviflora is as free as the former with the up- 
right panicles of the latter. It is most desirable for forcing. 
Diervilla (Weigela): Worth a place among plants that are 
lifted from the open ground annually and given a little heat 
under glass for spring flowering. The varieties floridus (syn. 
rosea) and hortensis are the most commonly used. 
Ericas: These should be potted in September placed in a 
cold house or frame until December, and then removed to a 
greenhouse. Gentle forcing is the watchword with them, as 
they resent too much heat. The flowers will last two or three 
months. The best of the early flowering types are E. gracilis, 
E. hyemalis, E. melanthera and E. cinerea. 
Forsythia: Forsythia suspensa is a free grower and flowers 
well in a greenhouse temperature. It should be pruned hard 
after flowering. 
Hydrangeas: The old H. hortensis, and its varieties otaksa 
and Dr. Hogg are still in demand and fill a useful place. Pro- 
pagation is by soft wood cuttings in spring rooted in sand, and 
grown on either in pots or planted outside and lifted as danger 
from frost approaches. During the winter they need to be kept 
somewhat dry in a cool, airy house until needed for forcing, when 
plenty of water should be given. 
As the flower trusses develop, 
weak solutions of liquid manure 
may be given, but should be dis- 
continued when the flowers show 
color. Though not forced to the 
extent of the other types Hydran- 
gea paniculata makes a desirable 
subject for forcing. It requires 
however, different treatment. 
Strong plants in pots should be 
pruned to within three eyes of 
the base and placed in an inter- 
mediate house. The eyes will 
soon break into growths which 
will bear the trusses of bloom. 
As the growths increase the plants 
may be given more heat, yet re- 
sults are best obtained with mod- 
erate forcing. 
I tea virginica: When forced 
slowly so that the leaves develop 
with the flowers this is a very 
pretty plant. The flowers are 
white in upright racemes three 
inches long, will open in March, 
and will last for several weeks. 
Jasminum nudiflorum: Place 
in the greenhouse in December. 
Kerria japonica: Started in 
January, this will produce its 
orange-yellow flowers in Febru- 
ary. The double variety lasts 
longer than the single one. They 
may be grown and forced in the 
same pots three years in succession with liberal feeding. All flow- 
ering wood should be removed as soon as the flowers are over. 
After the third year throw away the old plants. 
Laburnum: A useful and beautiful plant when forced for 
conservatory decoration. They should be potted a year ahead 
of the time needed for forcing. 
Lonicera: These require no special forcing. The well known 
species fragrantissima and Standishii are both good. 1 hey 
have small and very fragrant flowers. 
Magnolia: Plants lifted from the open ground with care and 
planted into pots may be had in flower very early. I he best 
forcers are M. conspicua and the several hybrids between it and 
M. obovata, particularly M. Soulangeana and M. Alexandrina. 
The purple-flowered M. obovata and the pure white M. stellata 
are also excellent when forced. The flowers of the latter are 
glistening white, star-like and so abundantly produced that they 
completely hide the plant. 
Olearia stellata: If kept in pots and not subjected to ex- 
cessive heat this may be used several years in succession. 
Paeonia Moutan: Grow in pots and have well established 
before placing in the heat. There are many varieties with 
flowers from 4 to 9 inches across, varying in color from pink, 
white, and crimson to deep purple. They will stand hard forcing 
and may be had in flower in February. 
Philadelphus: The fragrance of the flowers of the various 
Mock-oranges make them most acceptable as forcers. They 
will not stand very hard forcing, however. The pretty little 
Lemoine varieties should have all the old flowering wood re- 
moved as soon as the flowers are over. The others require 
thinning rather than severe cutting back. 
LIKE A LITTLE BLOOMING EVERGREEN! 
The compact, sturdy beauty of the Heather (Erica) is an asset rivalled 
only by the fact that its flowers continue for two to three months 
