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Spirea Van Houttet (See page 16) 
GENISTA HISPANICA (Spanish Broom). Sometimes called Spanish 
Gorse. Evergreen globe about 18 inches high. Shapely and at- 
tractive in the flower and in the foliage which conceals numerous 
thin, sharp spines. Like the tiger’s velvety paw, the fine foliage 
completely conceals the ferocious claws hidden underneath. Hardy. 
GENISTA NEUREGENSIS. Flowers appear in pastel shades of 
cream and magenta. Not as showy as some but adds variety. 
Grow to a height of 4 to 5 feet with a spread of 5 to 6 feet. Foliage 
very fine. Blooms a little later. Rare. 
GENISTA SAGITTALIS. A creeping broom reaching a height of 
not more than 6 inches. Has a profusion of yellow flowers on 
vertical stems. Stems are flattened and twisted. Always attracts 
attention. Hardiest of all creeping brooms. Excellent ground cover, 
making a dense, evergreen mat 2 to 3 feet in diameter. 
GENISTA TINCTORIA FLORA PLENA. Low growing, height about 
12 inches, but reaching a spread of 2 to 3 feet. Extremely colorful 
when in bloom, the foliage being entirely hidden by clustered 
golden yellow flower heads, standing 5 to 6 inches above the 
plant. The most profuse bloomer of all the brooms. 
HEATH (See Erica). 
HEATHER (See Erica, Calluna, Daboecia). 
HEDERA HELIX ABORESCENS (Bush English Ivy). A broad-leaved 
evergreen with every appearance of ivy in a bush form, but often 
having the ivy-like leaves twisted and contorted in an interesting 
manner. Does well in sun or shade. Reaches a height of 24% feet 
and spread of 4 feet. Very hardy and desirable. 
HEDERA HELIX CONGLOMERATA (Bunchleaf English Ivy). Low 
growing. Leaves crowded, contorted and small, giving a pleasing 
massed effect, as the plant lies flat upon the ground. Foliage deep 
dense green. An interesting plant, which attracts much attention. 
Very hardy. 
HEDERA HELIX MARMORATA. Trailing or climbing ivy, having 
variegated or marbled leaf that is attractive and produces a 
lovely contrast between the silver and deep green areas of the 
leaf. Hardy. 
HEMLOCK (See Tsuga). 
HOLLY (See Ilex). 
HOLLY GRAPE (See Mahonia). 
HONEYSUCKLE (See Lonicera). 
HYDRANGEA. The Hydrangeas are highly ornamental, mostly low- 
growing shrubs. Deciduous. Medium sized to large leaves and 
small white, bluish or pink flowers in panicles, some cone-shape, 
some round. All Hydrangeas are well adapted for borders of shrub- 
beries and are very showy as single specimen on the lawn. 
H. Hortensia. 6 to 8 feet in height. Flowers usually pink. 
H. Otaska. Dwarf, 3 feet in height. Flowers pink or blue. 
H. Peegee (Bush). 8 to 10 ft. tall. Flowers long, cone-shaped, some- 
times to 12 inches or better, white to purplish. 
H. Peegee (Tree). Same as Peegee bush only hydrangea is in tree 
form, bushing at from 3 to 5 feet from ground atop single standard. 
Extremely showy. 
HIBISCUS (Rose of Sharon) (Althea). Deciduous shrub to 6 to 12 ft. 
high, sometimes almost tree-like. Much branched. One of the com- 
monest of ornamental shrubs. Hardy. Commonly known as Althea 
or Rose of Sharon. It is immensely variable in character of flowers, 
the colors ranging from blue-purple to violet-red, flesh-color, and 
white. Very interesting late summer flowering shrub, blooming 
until freeze. 
Boule de Frew. Double purplish-red. 
Jeanne d’Arc. Double pure white. 
Paeoniflorus. Double purple. 
Snowdrift. Showy single white. Semi-dwarf. 
Lady Standlay. Rosy white with purplish-red throats. 
ILEX AQUIFOLIUM (English Holly). An evergreen holly of thrifty 
growth. Full branches, has large, rich green leaves and bears 
bright red berries of large size in abundance. One of the best 
hollies and a holly which one would make no mistake in planting 
where holly thrives or is desired. Very valuable both for orna- 
mentation and for commercial use where the foliage and berries 
are wanted for Christmas or other decorations. The best commer- 
cial strain, having good keeping qualities and heavy berries. Self- 
fertile. 
ILEX AQUIFOLIUM ALBO MARGINATA (Variegated Holly). Popu- 
lar variegated form of English Holly. When closely pruned it is 
well adapted to formal plantings. Berry-bearing type. 
ILEX CRENATA (Japanese Holly). Small, smooth, dark green 
leaves, resembling box. Has black berries, much branched shrub 
of irregular growth. 5 to 6 feet tall. Useful for its foliage; fine 
hedge subjects. 
