In the Cuthbert, Marlboro, and Lost Rubies we have hybrids of the foreign and our native species, forming the second class referred to; in the Turner and Hansel, examples of our native species unmixed. To each of these classes might be added a score of other varieties which have been more or less popular, but they would serve only to distract the reader's attention. I have tested forty or fifty kinds side by side at one time, only to be shown that four or five varieties would answer all practical purposes. I can assure the reader, however, that it will be scarcely possible to find a soil or climate where some of these approved sorts will not thrive abundantly and at slight outlay.
Throughout southern New England, along the bank of the Hudson, and westward, almost any raspberry can be grown with proper treatment. There are exceptions, which are somewhat curious. For instance, the famous Hudson River Antwerp, which until within a very few years has been one of the great crops of the State, has never been grown successfully to any extent except on the west bank of the river, and within the limited area of Kingston on the north and Cornwall on the south. The Franconia, another foreign sort, has proved itself adapted to more extended conditions of soil and climate.
I have grown successfully nearly every well-known raspberry, and perhaps I can best give the instruction I desire to convey by describing the methods finally adopted after many years of observation, reading, and experience. I will speak of the class first named, belonging to the foreign species, of which I have tested many varieties. I expect to set out this year rows of Brinckle's Orange, Franconia, Hudson River Antwerp, and others. For this class I should make the ground very rich, deep, and mellow. I should prefer to set out the plants in the autumn—from the middle of October to the tenth of November; if not then, in early spring—the earlier the better—while the buds are dormant. I should have the rows four feet apart; and if the plants were to be grown among the smaller fruit-trees, I should maintain a distance from them of at least seven feet. I should use only young plants, those of the previous summer's growth, and set them in the ground about as deeply as they stood when taken up—say three or four inches of earth above the point from which the roots branched. I should put two well-rooted plants in each hill, and this would make the hills four feet apart each way. By "hills" I do not mean elevations of ground. This should be kept level throughout all future cultivation. I should cut back the canes or stems of the plants to six inches. Thousands of plants are lost or put back in their growth by leaving two or three feet of the canes to grow the first year. Never do this. The little fruit gained thus prematurely always entails a hundred-fold of loss. Having set out the plants, I should next scatter over and about them one or two shovelfuls of old compost or decayed manure of some kind. If the plants had been set out in the fall, I should mound the earth over them before freezing weather, so that there should be at least four inches of soil over the tops of the stems. This little mound of earth over the plants or hill would protect against all injury from frost. In the spring I should remove these mounds of earth so as to leave the ground perfectly level on all sides, and the shortened canes projecting, as at first, six inches above the surface. During the remainder of the spring and summer the soil between the plants chiefly requires to be kept open, mellow, and free from weeds. In using the hoe, be careful not to cut off the young raspberry sprouts, on which the future crop depends. Do not be disappointed if the growth seems feeble the first year, for these foreign kinds are often slow in starting. In November, before there is any danger of the ground freezing, I should cut back the young canes at least one-third of their length, bend them gently down, and cover them with earth to the depth of four or five inches. It must be distinctly remembered that very few of the foreign kinds would endure our winter unprotected. Every autumn they must be covered as I have directed. Is any one aghast at this labor? Nonsense! Antwerps are covered by the acre along the Hudson. A man and a boy would cover in an hour all that are needed for a garden.
After the first year the foreign varieties, like all others, will send up too many sprouts, or suckers. Unless new plants are wanted, these should be treated as weeds, and only from three to five young canes be left to grow in each hill. This is a very important point, for too often the raspberry-patch is neglected until it is a mass of tangled bushes. Keep this simple principle in mind: there is a given amount of root-power; if this cannot be expended in making young sprouts all over the ground, it goes to produce a few strong fruit-bearing canes in the hill. In other words, you restrict the whole force of the plant to the precise work required—the giving of berries. As the original plants grow older, they will show a constantly decreasing tendency to throw up new shoots, but as long as they continue to grow, let only those survive which are designed to bear the following season.
The canes of cultivated raspberries are biennial. A young and in most varieties a fruitless cane is produced in one season; it bears in July the second year, and then its usefulness is over. It will continue to live in a half-dying way until fall, but it is a useless and unsightly life. I know that it is contended by some that the foliage on the old canes aids in nourishing the plants; but I think that, under all ordinary circumstances, the leaves on the young growth are abundantly sufficient. By removing the old canes after they have borne their fruit, an aspect of neatness is imparted, which would be conspicuously absent were they left. Every autumn, before laying the canes down, I should shorten them in one-third. The remaining two-thirds will give more fruit by actual measurement, and the berries will be finer and larger, than if the canes were left intact. From first to last the soil about the foreign varieties should be maintained in a high degree of fertility and mellowness. Of manures from the barnyard, that from the cow-stable is the best; wood-ashes, bone-dust, and decayed leaves also are excellent fertilizers. During all this period the partial shade of small trees will be beneficial rather than otherwise, for it should be remembered that sheltered localities are the natural habitat of the raspberry.
By a little inquiry the reader can learn whether varieties of the foreign class are grown successfully in his vicinity. If they are, he can raise them also by following the directions which have been given. Brinckle's Orange—a buff-colored berry—is certainly one of the most beautiful, delicate, and delicious fruits in existence, and is well worth all the care it requires in the regions where it will grow; while the Franconia and others should never be permitted to die out by fruit connoisseurs. If the soil of your garden is light and sandy, or if you live much south of New York, I should not advise their trial. They may be grown far to the north, however. I am told that tender varieties of fruits that can be covered thrive even better in Canada than with us. There deep snow protects the land, and in spring and autumn they do not have long periods when the bare earth is alternately freezing and thawing.
In the second class of raspberries, the crosses between the foreign and native species, we now have such fine varieties that no one has much cause for regret if he can raise them; and I scarcely see how he can help raising them if he has sufficient energy to set out a few plants and keep them free from weeds and superabundant suckers. Take the Cuthbert, for instance; you may set it out almost anywhere, and in almost any latitude except that of the extreme Southern States. But you must reverse the conditions required for the foreign kinds. If the ground is very rich, the canes will threaten to grow out of sight. I advise that this strong-growing sort be planted in rows five feet apart. Any ordinary soil is good enough for the Cuthbert to start in, and the plants will need only a moderate degree of fertilizing as they begin to lose a little of their first vigor. Of course, if the ground is unusually light and poor, it should be enriched and maintained in a fair degree of fertility. The point I wish to make is that this variety will thrive where most others would starve; but there is plenty of land on which anything will starve. The Cuthbert is a large, late berry, which continues long in bearing, and is deserving of a place in every garden. I have grown it for many years, and have never given it any protection whatever. Occasionally there comes a winter which kills the canes to the ground. I should perhaps explain to the reader here that even in the case of the tender foreign kinds it is only the canes that are killed by the frost; the roots below the surface are uninjured, and throw up vigorous sprouts the following spring. The Cuthbert is so nearly hardy that we let it take its chances, and probably in eight winters out of ten it would stand unharmed. Its hardiness is greatly enhanced when grown on well-drained soils.
It now has a companion berry in the Marlboro—a variety but recently introduced, and therefore not thoroughly tested as yet. Its promise, however, is very fine, and it has secured the strong yet qualified approval of the best fruit critics. It requires richer soil and better treatment than the Cuthbert, and it remains to be seen whether it is equally hardy. It is well worth winter protection if it is not. It is not a suitable berry for the home garden if no other is grown, for the reason that it matures its entire crop within a brief time, and thus would give a family but a short season of raspberries. Cultivated in connection with the Cuthbert, it would be admirable, for it is very early, and would produce its fruit before the Cuthberts were ripe. Unitedly the two varieties would give a family six weeks of raspberries. There are scores of other kinds in this class, and some are very good indeed, well worth a place in an amateur's collection; but the two already named are sufficient to supply a family with excellent fruit.
Of the third class of red raspberries, representing our pure native species, I should recommend only one variety—the Turner; and that is so good that it deserves a place in every collection. It certainly is a remarkable raspberry, and has an unusual history, which I have given in my work "Success with Small Fruits." I doubt whether there is a hardier raspberry in America—one that can be grown so far to the north, and, what is still more in its favor, so far to the south. In the latter region it is known as the Southern Thornless. The fact that it is almost wholly without spines is a good quality; but it is only one among many others. The Turner requires no winter protection whatever, will grow on almost any soil in existence, and in almost any climate. It yields abundantly medium-sized berries of good flavor. The fruit begins to ripen early, and lasts throughout a somewhat extended season. It will probably give more berries, with more certainty and less trouble, than any other variety. Even its fault leans to virtue's side. Set out a single plant, leave it to Nature, and in time it will cover the place with Turner raspberries; and yet it will do this in a quiet, unobtrusive way, for it is not a rampant, ugly grower. While it will persist in living under almost any circumstances, I have found no variety that responded more gratefully to good treatment. This consists simply in three things: (1) rigorous restriction of the suckers to four or five canes in the hill; (2) keeping the soil clean and mellow about the bearing plants; (3) making this soil rich. Its dwarf habit of growth, unlike that of the Cuthbert, enables one to stimulate it with any kind of manure. By this course the size of the bushes is greatly increased, and enormous crops can be obtained.
I prefer to set out all raspberries in the fall, although as a matter of convenience I often perform the task in the early spring. I do not believe in late spring planting, except as one takes up a young sprout, two or three inches high, and sets it out as one would a tomato-plant. By this course time is often saved. When it is our wish to increase the quality and quantity of the fruit, I should advise that the canes of all varieties be cut back one-third of their length. A little observation will teach us the reason for this. Permit a long cane to bear throughout its natural length, and you will note that many buds near the ground remain dormant or make a feeble growth. The sap, following a general law of nature, pushes to the extremities, and is, moreover, too much diffused. Cut away one-third, and all the buds start with redoubled vigor, while more and larger fruit is the result. If, however, earliness in ripening is the chief consideration, as it often is, especially with the market-gardener, leave the canes unpruned, and the fruit ripens a few days sooner.