SPIRAEA BELLA.--Pretty-flowered Spiraea. Himalayas, 1820. The reddish
stems of this rather tall-growing species are of interest, and render
the plant distinct. Leaves ovate, acute, and serrated, and tomentose
beneath. Flowers in spreading corymbs of a very beautiful rose colour,
and at their best from the middle of May till the middle of June. S.
bella alba has white flowers.
S. BLUMEI.--Blume's Spiraea. Japan. This is a Japanese species, growing
4 feet or 5 feet high, with small, ovate, bluntly-pointed leaves, and
white flowers arranged in compact terminal cymes. It is a good and
worthy species for ornamental planting.
S. BULLATA (_syn S. crispifolia_.)--Japan. This will ever be accounted
valuable for the rock garden, owing to its very dwarf habit and extreme
floriferousness. It bears tiny bunches of bright rose-coloured flowers,
and these look all the more charming owing to the miniature size of the
shrub, its average height being about 12 inches. A very interesting and
valuable rock shrub, and one that no doubt about its perfect hardihood
need be entertained.
S. CANA.--Hoary-leaved Spiraea. Croatia, 1825. This is a small spreading
shrub that rarely rises to more than 18 inches in height, with small,
ovate, hoary leaves, and pretty white flowers arranged in corymbs. For
rockwork planting it is one of the most valuable species, growing freely
and producing its showy flowers in abundance. Quite hardy.
S. CANTONIENSIS (_syn S. Reevesiana_).--Reeve's Spiraea. Japan, 1843. An
evergreen or sub-evergreen species, growing 3 feet high, with lanceolate
leaves on long footstalks, and large, pure white flowers arranged in
terminal corymbs, and placed on long peduncles.
S. CHAMAEDRIFOLIA (_syn S. ceanothifolia_).--Germander-leaved Spiraea.
South-eastern Europe to Japan, 1789. Grows about a yard high, with
ovate, pubescent leaves, and white flowers. It varies widely in the
shape and size of leaves. S. chamaedrifolia ulmifolia (Elm-leaved
Spiraea) a twiggy shrub, 3 feet high, with broad leaves and white
flowers, is from Siberia. S. chamaedrifolia crataegifolia
(Hawthorn-leaved Spiraea) is of stout, half-erect growth, with rather
stiff glaucous leaves that are oval in shape, and bright red or pink
flowers in fastigiate panicles. From Siberia 1790, and flowering at
S. DECUMBENS (_syn S. nana_).--Decumbent Spiraea. Tyrol. This is the
smallest-growing of the shrubby Spiraeas, rarely attaining to a greater
height than 12 inches. It is a neat growing plant, with small oval
leaves, and white pedunculate flowers. For planting on the rockwork or
in the front line of the shrubbery, this is an invaluable shrub, and
soon forms a neat and pretty specimen. It is perfectly hardy.
S. DISCOLOR ARIAEFOLIA (_syn S. ariaefolia_).--White Beam-leaved
Spiraea. North-west America, 1827. This forms a dense, erect shrub about
6 feet high, with elliptic-oblong leaves, and clothed beneath with a
whitish tomentum. The flowers are in large, terminal, slender-stalked
panicles, and white or yellowish-white. It is one of the handsomest
species in cultivation, the neat and yet not stiff habit, and pretty,
plume-like tufts of flowers making it a general favourite with the
cultivators of hardy shrubs. Flowers about mid-summer. In rich soils,
and where partially shaded from cold winds, it thrives best.
S. DOUGLASII.--Douglas's Spiraea. North-west America. This has long,
obovate-lanceolate leaves, that are white with down on the under
surface, and bears dense, oblong, terminal panicles of rosy flowers. S.
Douglasii Nobleana (Noble's Spiraea) is a variety of great beauty,
growing about a yard high, with large leaves often 4 inches long, and
looser panicles of purple-red flowers. Flowering in July. The variety
was introduced from California in 1859.
S. FISSA.--Split-leaved Spiraea. Mexico, 1839. A stout, erect-growing
shrub, about 8 feet high, with rather small leaves, angular, downy
branches, and long, loose, terminal panicles of small and greenish-white
flowers. The leaves are wedge-shaped at the base, and when young have
the lateral incisions split into a pair of unequal and very sharp teeth.
Flowering in May and June. In the south and west of England it thrives
S. HYPERICIFOLIA (_syn S. flagellata_).--Asia Minor, 1640. A wiry twiggy
shrub, fully 4 feet high, with entire leaves, and small, white flowers
produced in umbels at the tips of the last year's shoots. It is a pretty
and desirable species.
S. JAPONICA (_syns S. callosa_ and _S. Fortunei_).--Japanese Spiraea.
China and Japan, 1859. This is a robust species about a yard high, with
large lanceolate leaves, and small, rosy-red flowers arranged in
corymbose heads. Flowering at mid-summer. There are several fine
varieties of this species, including S. japonica alba, a compact bush
about a foot high with white flowers; S. japonica rubra differs from the
type in having dark red flowers; S. japonica splendens, is a
free-flowering dwarf plant, with peach-coloured flowers and suitable for
forcing; and S. japonica superba, has dark rose-red flowers. S. Bumalda
is a closely allied form, if not a mere variety of S. japonica. It is of
dwarf habit, with dark reddish-purple flowers.
S. LAEVIGATA (_syns S. altaicensis_ and _S. altaica_).--Smooth Spiraea.
Siberia, 1774. A stout, spreading shrub about a yard high, with large,
oblong-lanceolate, smooth, and stalkless leaves. The white flowers are
arranged in racemose panicles, and produced in May.
S. LINDLEYANA.--Lindley's Spiraea. Himalayas. A handsome, tall-growing
species, growing from 6 feet to 8 feet high, with very large pinnate
leaves, and pretty white flowers in large terminal panicles. It is the
largest-leaved Spiraea in cultivation, and forms a stately, handsome
specimen, and produces its showy flowers in great quantities. Flowering
at the end of summer.
S. MEDIA (_syns S. confusa_ and _S. oblongifolia_).--Northern Asia, etc.
The pure white flowers of this species are very freely produced in
corymbs along the shoots of the previous season during the months of
June and July. The lanceolate-elliptic leaves are serrate, or the
smaller ones toothed near the apex only. Within the past few years the
species has been brought into prominence for forcing purposes, for which
it is admirably suited. It forms an upright, branching bush usually
about 3 ft. high, and is best known under the name of S. confusa.
S. PRUNIFOLIA.--China and Japan, 1845. A twiggy-branched shrub growing 4
feet or 5 feet high, with oval, Plum-like leaves, and white flowers.
There is a double-flowering variety named S. prunifolia flore-pleno,
which is both distinct and beautiful.
S. ROTUNDIFOLIA.--Round-leaved Spiraea. Cashmere, 1839. A
slender-branched shrub, having downy shoots, and round, blunt leaves,
flowering in July.
S. SALICIFOLIA.--Willow-leaved Spiraea. Europe, and naturalised in
Britain. An erect-growing, densely-branched shrub, with smooth shoots,
which spring usually directly from the ground. Leaves large, lanceolate,
smooth, doubly serrated, and produced plentifully. Flowers red or
rose-coloured, and arranged in short, thyrsoid panicles. It flowers in
July and August. S. salicifolia carnea has flesh-coloured flowers; S.
salicifolia paniculata has white flowers; and S. salicifolia grandiflora
has pink flowers as large again as the type. S. salicifolia alpestris
(Mountain Spiraea) grows fully 2 feet high, with lanceolate,
finely-toothed leaves, and loose, terminal panicles of pink or red
flowers. From Siberia, and flowering in autumn. S. salicifolia latifolia
(_syn S. carpinifolia_), the Hornbeam-leaved Spiraea, is a
white-flowered variety, with leaves resembling those of the Hornbeam.
From North America.
S. SORBIFOLIA.--Sorbus-leaved Spiraea. Siberia, 1759. A handsome, stout
species, 4 feet high, with large, pinnate, bright green leaves, and
small, white, sweetly-scented flowers produced in thyrsoid panicles.
S. THUNBERGII.--Thunberg's Spiraea. Japan. The white flowers of this
species smell somewhat like those of the Hawthorn, and are freely
produced on the leafless, twiggy stems, in March or early in April,
according to the state of the weather. They are borne in axillary
clusters from buds developed in the previous autumn, and are very
welcome in spring, long before the others come into bloom. The bush
varies from one to three feet high, and is clothed with
linear-lanceolate, sharply serrated leaves.
S. TOMENTOSA.--Tomentose Spiraea. North America, 1736. This species
grows 2 feet or 3 feet high, has rusty tomentose shoots and leaves, and
large, dense, compound spikes of showy red flowers. Flowering in summer.
S. TRILOBATA (_syn S. triloba_).--Three-lobed Spiraea. Altaian Alps,
1801. This is a distinct species with horizontally arranged branches,
small, roundish, three-lobed leaves, and white flowers arranged in
umbel-like corymbs. It flowers in May, and is quite hardy.
S. UMBROSA (Shady Spiraea) and S. EXPANSA (Expanded-flowered Spiraea),
the former from Northern India and the latter from Nepaul, are well
suited for planting in somewhat shady situations, and are very
ornamental species. The first mentioned grows about a foot high, with
rather large leaves, and cymes of white flowers on long slender
footstalks; while S. expansa has pink flowers, and lanceolate and
coarsely serrated leaves.
There are other valuable-flowering kinds, such as S. capitata, with
ovate leaves and white flowers; S. pikowiensis, a rare species with
white flowers; S. cuneifolia, with wedge-shaped leaves and panicles of
pretty white flowers; and S. vacciniaefolia, a dwarf-growing species,
with small ovate, serrulated leaves, and showy, pure white flowers. S.
betulifolia and S. chamaedrifolia flexuosa are worthy forms of free
growth and bearing white flowers.
Other S Tree Species