Clethra Alnifolia
Alder-leaved Clethra; Nat. Ord. Ericaceæ
A hardy deciduous shrub, and mentioned in connection with herbaceous perennials because of its rich flowers and dwarf habit. It is a native of North America, having been grown in this country for 150 years; it is not so often met with as it ought to be, though much esteemed. It becomes very productive of flowers when only 2ft. high, but grows somewhat taller when well established; it is more valuable than common from its floriferousness, during late summer to the end of the season.
Let me at once state that its winning point is the delicious scent of its pure white flowers; it is very powerful, and like that of the lilac and alder combined; the racemes are 2in. or 3in. long, and compactly formed of short-stalked flowers less than ½in. across; they are of good substance, and in form resemble the lilac flower minus the tube; the flower stems are somewhat woody, and foliaged to the base of the spike or raceme. The leaves are of varying sizes, oval, lance-shaped, and short-stalked, distinctly veined and slightly wrinkled, sharp but finely toothed, of a dark shining green colour on the upper and a greyish-green on the under side. The whole shrub is somewhat rough to the touch; the habit is bushy and branching, increasing in size from suckers; the numerous twiggy side shoots of the previous year's growth produce the flowers.
It enjoys a light soil and sunny situation, and it may be planted anywhere in the shrubbery or borders as a first-class flowering subject. Its scent loads the air for some distance around, and pleasantly reminds one of spring flowers. Such sweet-smelling flowers are not too plentiful in September, and I know not a better one than this amongst hardy flowers for the late season. Its odour is fine and full; a single sprig now by me proves almost too much for the confinement of a room. This quality is invaluable in small flowers that can be freely cut, which, moreover, as in this case, are otherwise suitable for bouquet work. Propagated by cuttings and division of the suckers, taken when growth has ceased; if put in sandy loam and a warm situation, they will become rooted during the following spring.
Flowering period, August and September.
Colchicum Autumnale
Meadow Saffron; Common Name, Autumnal Crocus; Nat. Ord. Melanthaceæ
A native bulbous perennial (see Fig. 25). The Colchicums are often confounded with the autumn-flowering species of croci, which they much resemble when in bloom; the similarity is the more marked by the absence, from both, of their leaves in that season, otherwise the leaves would prove to be the clearest mark of difference. Botanically they are far removed from each other, being of different orders, but there is no need to go into such distinctions, not, at any rate, in this case.
Fig. 25. Colchicum Autumnale
(about one-sixth natural size.)
The flowers are well known and they need not be described further than by saying they are in form crocus-like, but much longer in the tubes and of a bright mauve-purple colour. The bulbs have no resemblance to the crocus whatever, being often four times the size of the crocus corms. Moreover, they are pear-shaped and covered with flaky wrappers of a chestnut brown colour; if examined, these coverings will be found, near the neck of the bulb, to be very numerous and slack fitting, extending above the ground, where they have the form of decayed or blackened foliage; a singular fact in connection with the roots is, they are not emitted from the base of the bulb, but from the side of the thickened or ovate part, and are short and tufty. In early spring the leaves, which are somewhat like the daffodil, but much broader and sheathed, are quickly grown; at the same time the fruit appears. In summer the foliage suddenly turns brown, and in the autumn nothing is seen but blackened foliage, which is very persistent, and which, a little later, acts as sheaths for the long-tubed flowers. Unless the weather be very unfavourable, these flowers last a long time—fully two weeks. The double variety, which is somewhat scarce, is even more lasting, and I may add, it is a form and colour so softly and richly shaded that it is nothing short of exquisite; but the single variety, now more especially under notice, is also capable of agreeably surprising its friends when used in certain ways, for instance, as follows: A tray of the bright green and nearly transparent selaginella, so common in all greenhouses, should form the ground for twos or threes of these simple but elegant Saffron flowers; no other should be placed near—their simplicity forms their charm. It will be seen that the robust but soft-coloured flower of the meadows harmonises finely with the more delicately grown moss. In other ways this fine autumnal flower may be used with pleasing effect in a cut state, and it blends well with the more choice exotics. This is more than can be said of many hardy flowers, and it is fortunate that during dull weather, when we are driven from our gardens, there are still some flowers which may be hastily gathered and so arranged indoors as to give us all the pleasure which only such flowers can yield at such a season.
I find this subject to do well in any situation, but I think the blooms are a richer colour if grown under partial shade. The bulbs should not be disturbed if abundance of flowers are wanted; but if it is found desirable to propagate them, the bulbs may be lifted every two or three years, when the tops have withered, and when there will probably be found a goodly crop of young tubers.
Flowering period, September and October.
Colchicum Variegatum
Nat. Ord. Melanthaceæ
This comes from Greece, nevertheless it is perfectly hardy; it is not only peculiarly pretty when closely examined, but a truly handsome flower, either as cut bloom or seen in groups in a growing state. Compared with C. autumnale, it is shorter in the tube, or more dwarf; still, it is a larger flower, and its rosy purple petals, or divisions of the corolla, are more spear-shaped, and each from 2in. to 3in. long; they have a stout and almost white mid-rib, the other parts of the segments being distinctly and beautifully chequered with white and rosy purple; the tube is stout, and of transparent whiteness; the foliage less than that of the British species, and more wavy. The habit of the flowers is erect, and during sunshine they become flatly expanded, when they will be 4in. to 5in. across, being 3in. to 4in. high. It is a very durable flower, lasting at least a fortnight, and many are produced from one bulb, appearing in succession, so that the blooming period is well extended; it braves the worst weather with little or no damage. Unlike the longer-tubed varieties, it is never seen in a broken state, and it is this which mainly renders it superior. Either as a cut flower, or a decorative subject for the borders or rockwork, it is a first-rate plant, being neat and showy.
It enjoys a sandy loam in a moist but warm situation; at the base of a small rockwork having a southern aspect it flourishes to perfection; it can hardly be planted wrongly provided there is no stagnant moisture. Propagated like C. autumnale, than which it is of slower increase.
Flowering period, September and October.
Coreopsis Auriculata
Ear-leaved Coreopsis; Nat. Ord. Compositæ
Fig. 26. Coreopsis Auriculata.
(one-fourth natural size.)
The oldest species of the genus grown in English gardens; its flowers are yellow, but dotted at the base of the ray florets. The leaves, as implied by the name, are dissimilar to other species, being lobed and having ear-like appendages; but this feature is far from constant, and otherwise the leaves differ, being sub-sessile and oval-lance-shaped (see Fig. 26). It came from North America as long ago as 1699. Slugs are very fond of these plants, and in winter more especially, when the dormant eyes are not only in a green, but exposed state; they should be watched after, or during one mild night the whole may be grazed off, to the great injury of the plant.
Its habit, uses, culture, and propagation are the same as for C. tenuifolia.
Coreopsis Grandiflora
Large-flowered Coreopsis; Nat. Ord. Compositæ
In many parts this resembles C. lanceolata, its main distinction being implied by its name. The flowers are larger and the ray florets more deeply cut; it is also bolder in the foliage, and the stems grow nearly as strong as willows. It is an abundant bloomer, and a good specimen is a glorious object during the autumn. It comes from North America, but my experience of it is that it is not so hardy as C. lanceolata and C. auriculata.
Habit, uses, culture, and propagation, as for C. lanceolata.
Coreopsis Lanceolata
Spear-leaved Coreopsis; Nat. Ord. Compositæ
This form of bright yellow flower is in great favour during August, but that is not all. The various kinds of this genus are plants of the easiest culture, and their rich flowers are produced in great quantities from midsummer to the time the frosts begin. This species has been said to be only of a biennial character; it is, however, understood generally to be perennial, though not quite so hardy as others which come from the colder climates of America. It was imported from Carolina in 1724, and in this country proves hardy in selected situations, where its roots are comparatively dry in winter, and I may add that it proves a true perennial.
When the plant has attained the height of a foot it begins to flower; each bloom has a long pedicel, nearly naked, also round and smooth. The flowers are a shining yellow colour, and nearly 3in. across; the florets of the ray are flatly arranged, shield-shaped, pleated, and four-toothed, the teeth being sometimes jagged; the disk is small for so large a flower; the florets brown and yellow. The double involucrum, common to the genus, has its upper set of bracteoles rolled outward; they are of a brownish colour; the lower set are green and wheel-shaped during the period of a perfect ray, and they alternate with the upper ones. The leaves, as may be inferred from the specific name, are lance-shaped, 2in. to 6in. long, smooth and entire; they are attenuated to the stems, which they more or less clasp. The habit of the plant is much branched, but only slightly at base; it becomes top-heavy from the numerous shoots near the top, which cause it to be procumbent; otherwise this subject would rank with tall growers. It is one of the most useful flowers, both, in the garden and when cut, the long stalks in both cases adding much to its effectiveness; its form and brightness are sure to commend it, no matter whether it happens to be a fashionable flower or otherwise. It is at once a bold and delicate form, and one that harmonises with any other kinds and colours.
It should be grown in deeply-dug and well-enriched earth, and, as already hinted, the drier the situation the more safely will it winter. Not only that, but on raised beds or banks sloping to the full sunshine it will also flower to perfection. All its family, so far as I have proved them, hate excessive moisture. Its propagation may be by division, as in this damp climate it does not seem to ripen seed, but I have found sometimes not a little difficulty in dividing the woody roots, as frequently there is only one stem below the surface with roots. When there are more the difficulty is lessened, but I have noticed that the stronger branches which are weighted to the ground form rudimentary roots where in contact with the earth. These may either be pegged and covered with soil, or cut off and made into cuttings, removing most of the tops. If the latter is done during August they will become well rooted before the frosts appear.
Flowering period, July to October.
Coreopsis Tenuifolia
Slender-leaved Coreopsis; Nat. Ord. Compositæ
Hardy, herbaceous, and perennial; a native of North America, and a distinct species, from its finely-cut foliage and small, dark, orange-yellow flowers. For several weeks it has a few flowers, but during September it literally covers itself with bloom, so that it is one of the most pleasing objects in the garden.
It grows 2 ft. high; each flower has a long nearly nude stalk, slender but wiry; the flowers are 1½in. across, and of a deep yellow colour; the florets of the ray are more distant from each other than is the case with many of the genus; the disk is small, dark brown, but changing from the appearance and disappearance of the yellow seed organs. The foliage, as may be seen by the illustration (Fig. 27), is deeply and finely cut, of a dark green colour, and so arranged that each node has a nearly uniform dressing; the main stems are slender, and bend gracefully with the least breeze, and otherwise this plant proves a lively subject. Its habit is bushy and very floriferous, and it is well worth a place in every garden. It cannot fail to win admiration; even when growing, and before the flowers appear, it is a refreshing plant to look upon. In a cut state, the bloom, if taken with long stems, is well adapted for relieving large and more formal kinds. Tastes differ, and in, perhaps, nothing more than floral decorations; all tastes have a right to a share of indulgence, and in claiming my privilege in the use of this flower, I should place two or three sprays (stems) alone in a glass or bright vase, but there might be added a spike of the cardinal flower or a pair of single dahlias and a falling spray of the Flame nasturtium (Tropæolum speciosum).
This plant should have a rich soil, sunny aspect, and a raised or well-drained site, and this is all it needs; it is not a subject to increase fast; not only, however, may it be easily divided, but if properly done after the tops have died down, the smallest pieces will make good blooming stock the first season.
Fig. 27. Coreopsis Tenuifolia.
(One-sixth natural size; a, half natural size.)
Flowering period, August and September.
Cornus Canadensis
Canadian Cornell, or Dogwood; Nat. Ord. Cornaceæ
This pretty herbaceous plant is sometimes said to be a British species; its specific name, however, somewhat forbids that opinion. C. suecica, which is British, is very similar in all its parts, and the two may have been confounded. They flower, however, at very different dates, C. Canadensis beginning in June and continuing until well into autumn; during the month of August the flowers are in their finest form and greatest numbers. It grows 6in. to 8in. high, and notwithstanding its dwarfness, it proves a most attractive object, being not only conspicuous for so small a plant, but chastely beautiful.
Fig. 28. Cornus Canadensis.
(One-half natural size.)
The flowers are exceedingly small, strictly speaking, and are arranged in a minute umbel in the midst of a bract of four white pink-tinted leaves; these latter are commonly taken for the petals, and, as may be seen in the illustration (Fig 28), the real flowers will only appear as so many stamens; but at their earlier stage these are of a yellowish colour; later the purplish style becomes prominent and imparts that colour to the umbel, and, in due time, small fruit are formed. All the while the bract of pleasing white leaves remain in unimpaired condition; they are arranged in two pairs, one of larger size than the other, somewhat heart-shaped and bluntly-pointed, richly tinted at their edges and tips with a bright pink colour, and forming a flower-like bract 1½in. across the broadest part. The bract and pedicels of the umbel all spring from the extremity of a peduncle 1½in. long, square, but of wiry character; this grows from the midst of a whorl of six leaves, and sometimes only four. They are in pairs, one pair being larger than their fellows, and are from 1½in. to 2in. long, elliptical-oblong, entire, smooth, waved, distinctly veined, tinted with pink at the tips and edges, and of a pale apple-green colour. On the stem, below the whorl of leaves, there is one pair more, varying only in size, being rather less. The habit of the species is neatness itself. From the slightly creeping roots, the perennial stems are produced separately, forming compact colonies of bright foliage, topped with its lively bracts.
It is a suitable plant for the moist parts of rockwork, where it may be grown with such things as Cardamine trifolia, Galax aphylla, Pyrola rotundifolia, and Salix reticulata, and it would form a rich edging to choice dwarf plants, more especially if the position were gutter-formed, as it loves moisture in abundance. In such positions as those just mentioned, together with a light vegetable soil, this plant will grow to perfection, and that it is worth a proper place is evidenced by its long-continued blooming. Many flowers come and go during its period of attractiveness, and, after the summer flush, it is one to remain, braving alike the hot sunshine and heavy rain. Its propagation is by division of the roots in autumn or very early spring.
Flowering period, June to October.
Corydalis Lutea
Yellow Fumitory; Nat. Ord. Fumariaceæ
A native herbaceous perennial, though somewhat rare in a wild state. As grown in gardens, where it seems to appreciate cultural attentions, it proves both useful and effective, especially when placed in partial shade (when its foliage has an almost maiden-hair-like appearance), or as an edging it proves both neat and beautiful.
It seldom exceeds a foot in height. The flowers are small, a yellow, white and green mixture, the yellow predominating; they are produced in loose spare racemes, on well-foliaged diffuse stems, which are also angular; the calyx is composed of two leaves; the petals are four, forming a snapdragon-like flower. The leaves are bipinnate, leaflets wedge-shape, trifoliate, and glaucous; the foliage very dense, having a pretty drooping habit. It flowers all summer, and is one of the most useful plants in a garden to cut from, the foliage being more valuable than the flowers.
Its native habitats are said to be old walls and ruins, but I have proved it for years to do grandly in ordinary garden soil, both exposed and in the shade of fruit trees. When once established it propagates itself freely by seed. I ought to add that it answers admirably grown in pots for window decoration, the rich foliage nearly hiding the pot.
Flowering period, May to October.
Corydalis Nobilis
Noble or Great-flowered Corydalis; Nat. Ord. Fumariaceæ
Fig. 29. Corydalis Nobilis.
(One-half natural size; blossom, natural size.)
A hardy tuberose perennial, imported from Siberia in 1783. It is one of that section of the Fumitories called "Hollowe Roote," the appropriateness of which name is most amply illustrated in the species now under consideration. If, in the first or second month of the year, a strong specimen is examined, the long and otherwise stout tuberous root will be found, immediately under the healthy and plump crown, to be not only hollow, but so decayed that the lower and heavy fleshy parts of the root, which are attached to the crown by a narrow and very thin portion of the root bark, in such a way as to suggest that the lower parts might as well be cut off as useless—but, let me say, do not cut it. If it is intended to replant the specimen, let it go back to "Mother Earth" with all its parts, deformed as some may seem to us; otherwise Corydalis nobilis will be anything but a noble plant at the flowering season; it may not die, but it will probably make for itself another "hollowe roote" before it produces any flowers, The habit and form of this plant are perfect (see Fig. 29), and there are other points of excellence about it which cannot be shown by an engraving, in the way of the arrangements of colours and shades. Seldom does the little plant, so full of character, exceed a height of 8in. The specimen from which the drawing was made was 7in., and grown fully exposed in a pot plunged in sand. Another plant, grown on rockwork, "high and dry," is about the same size, but it looks better fed. Probably the long roots are short of depth in pots, and the amount of decay may soon poison the handful of mould contained therein. Be that as it may, the specimens grown in pots have a hungry appearance compared with those less confined at the roots.
The flowers are a pleasing mixture of white, yellow, brown, and green. The four petals are of such a shape and so arranged as to form a small snapdragon-like flower. These are densely produced in a terminal cluster in pyramid form on the stout and richly-foliaged stem; dense as is the head of flowers, every floret is alternated with a richly-cut leaf, both diminishing in size as they near the top. The older flowers become yellow, with two petals tipped with brown, the younger ones have more white and green, and the youngest are a rich blend of white and green; the head or truss is therefore very beautiful in both form and colour, and withal exquisitely scented, like peach blossom and lilac. The leaves are stalked bipinnate; leaflets three-parted, cut, and glaucous; there are few plants with more handsome foliage, and its beauty is further enhanced by the gracefully bending habit of the whole compound leaf. The flowers are too stiff for cutting, and otherwise their fine forms, colours, and perfume cannot well be enjoyed unless the plants are grown either in pots or at suitable elevations on rockwork, the latter being the more preferable way. The long blooming period of this plant adds not a little to its value, lasting, as it does, quite a month, the weather having little or no effect on the flowers.
Any kind of sweet garden soil seems to do for it, and its propagation is carried out by careful root division.
Flowering period, April to June.