The Culture Of Vegetables And Flowers From Seeds And Roots 16th

Chapter 16

Chapter 164,201 wordsPublic domain

The taste for Tomatoes often begins with a little antipathy, but it is soon acquired, and not infrequently develops into decided fondness for the fruit both cooked and in its natural condition. As a necessary article of food the call for it in this country is no longer limited to a select circle of epicures, for the value of its refreshing, appetising, and corrective properties is now widely recognised, and its advance in public favour has been accelerated by the improved quality, enhanced beauty, and increased variety effected by expert raisers.

The Tomato is a tender, but not a tropical plant, and it requires a moderately high temperature, free access of air, and above all a full flood of solar light to bring it to perfection. The necessary heat is easily managed in any garden equipped with ordinary forcing appliances; so also is a current of air in properly constructed buildings; but the deficiency of light during the darker months renders the task of producing fruit in midwinter less easy than at other seasons. By the introduction of varieties possessing increased powers of crop-setting, however, the difficulty of winter fruiting has been largely overcome, so that, with efficient management, it is now possible to send Tomatoes to table throughout the year.

Almost every imaginable glass structure can be employed for growing Tomatoes, from the small suburban greenhouse to the vast span-roof, hundreds of feet in length, devoted to their culture in the Channel Islands. And it is not essential that the crop should be grown alone. Potatoes, French Beans, Strawberries, and Vines may be forced in the same building, provided there be no obstruction to light and air, nor any interference with the conditions which experience has proved to be imperative for sustaining the plants in vigorous health. For winter and spring gathering there must be a service of hot-water pipes, but as the season advances it is easy to ripen fruit in cool houses, and later on plants outdoors will in favourable seasons yield an abundant return without artificial protection of any kind.

INDOOR CULTURE—Sowing and Transplanting.—Seed may be sown at almost any time of the year, but the most important months are January to March, August and September. In gardens favourably situated in the South of England and furnished with the most perfect appliances, seed is sown in all these months, and in others also; but in smaller gardens sowings are generally restricted to February and March. Whenever a start is made sow thinly and about half an inch deep, in pans or boxes, and do not allow the seedlings to remain in them for an unnecessary day. Immediately two or at most four leaves are formed either prick off into other pans or boxes, or transfer singly to thumb pots, and as a rule the pots will be found preferable. The soil for these pans or pots should be stored in the greenhouse a few days in advance of the transfer, so that the compost may acquire the proper temperature and save the plants from an untimely check. In small houses place the plants near the glass that they may remain short in the joint, but on cold nights they must be taken down to avoid injury from fluctuations of temperature. In large houses, where the light is well diffused, there is no need to incur this trouble, for the seedlings will do equally well on the ground level. In due time shift into six-inch pots, from which they can go straight to borders, or into a larger size if they are to be fruited in pots. About fourteen weeks will be required to prepare the plants for borders in the winter season, but a shorter period will suffice in spring and summer. Plants from an August or September sowing will not mature fruit in much less than six months, while a March sowing will yield a return in four months or less. A great deal depends on the character of the season, and more on skill and attention. Those who sow in January or February should sow again a fortnight later, and onwards until the end of April, according to requirements. For winter supplies a first sowing may be made in June, in a cold frame, and prepared for transfer to fruiting pots in September.

Treatment of Soil.—In the first instance there need be no anxiety about soil. Any fairly good sandy loam will answer for the seed-pans, and if too stiff it may be freely mixed with sharp sand or the sifted sweepings from roads and gravel walks. A fibrous loam, cut from a rich pasture, and laid up in a heap for twelve months, will, with an addition of wood ashes and grit, make an ideal soil for pots or borders. As the plants advance, leaf-mould or thoroughly decayed manure in moderate quantity should be supplied; but, instead of incorporating it with the loam in the usual way, it will be found advantageous to place the manure immediately above the crocks, and the roots will find it at the right time. But the quantity of manure must not be overdone, especially in the earlier stages of growth, because excessive luxuriance neither promotes fruitfulness nor conduces to early ripening. After the fruit has set, a mulch of decayed manure will aid the plants in finishing a heavy crop. Manure which is only partially fermented will not do at all. The ammonia it liberates exerts so deadly a power that the plants are quickly scorched.

In its demand for potash the Tomato closely resembles the Potato, and of the two the former is the more exacting. So quickly does this crop exhaust the soil, that in small houses it is usual to take out the earth to a depth of fifteen or eighteen inches every second or third year, and replace it with virgin loam. Others grow the Tomatoes alternately in the bed and in pots, but this is only a partial remedy. Constant dressings of farmyard or stable manure result in the formation of humus, which, as it becomes sour, has to be sweetened by the solvent influence of lime. The chief objection to the use of stable manure, however, even when well rotted, is that it induces a free growth of foliage instead of promoting an early development of fruit. The most enduring method is that which is based on chemical knowledge of the constituents of the soil, and the relation which the plant bears to it. One of the most successful growers for the London market almost entirely avoids the use of stable manure, and he is able, by applications of nitrate of potash, dissolved bones, and the occasional use of lime, to grow splendid crops in the same houses year after year.

All the conditions which answer for border work are applicable to pots, and a limited number of plants brought forward in succession will supply the requirements of a small household from early spring until near Christmas. The pot system is conducive to free setting and to early ripening, and for these reasons it is worth attention. The plants should be kept short in the joint by frequent shifts until the twelve-inch pot is reached, and this size will accommodate two cordons or one plant having two branches, each of which will require a separate stake for its support. Plunging the pots can be adopted to save labour in watering.

Temperatures.—No advantage is to be gained by attempting to force Tomatoes in a higher temperature than is consistent with healthy progress, although in winter there is great temptation in the direction of overheating. Full time for development in moderate heat will bring stout joints, and impart a vigorous constitution that materially aids the plants in resisting the insidious attacks of disease. The waning autumn and dull winter days are the most troublesome periods of management, and it is remarkable that of two days equal in duration and apparently in other conditions, the autumnal appears to be less favourable than the spring day. But if, on the one hand, a high temperature is injurious, a low temperature must be avoided; although for a time it may not appear to be harmful. A temperature of 60° or 65° suits the seed-pans, and after transfer to pots and the roots have become established, the thermometer should not register less than 55° during the night. It may rise 10° by means of fire heat in the daytime, and during bursts of sunshine another 10° or 15° will be quite safe, always assuming that the roots are not dry, and that the plants have free ventilation.

Watering.—The judicious administration of water forms an important feature in the culture of the Tomato. The plant is too succulent to endure drought with impunity, and it is mere folly to toy with the water-can. Saturate down to the roots, and then leave the plants alone until more water is wanted. No hard and fast rule can be stated as to frequency. It depends on the condition of the soil, the period of the year, and the age of the plants. Borders and soil for pots should be made sufficiently moist in advance, so that watering will not be necessary immediately after the plants are transferred. The prevalent opinion that excessive watering generates disease is not confirmed by our experience. Of course the watering should not be excessive for many reasons, but the diseases which are often attributed to over-watering are the result of atmospheric mismanagement.

General Treatment.—Authorities are not agreed as to whether branched plants or simple cordons yield the better results. In our judgment the single stem deserves preference, and it is now more extensively grown than any other form, although plants having two branches are almost equally popular. Certainly the cordon can be managed with extreme ease; it is admittedly the earliest producer, and there is a general consensus of opinion that the fruit it produces is unsurpassed in size and quality. The doubtful point is quantity, but even here the difference, if any, is too trifling to be worth the consideration of private growers. Cordons are formed by removing the laterals as fast as they appear, and when the fruit has set, or the requisite height is attained, the top is also pinched out.

The space allowed for each plant varies greatly, especially among growers for market. Under glass every branched Tomato should be allowed at least three feet each way. For cordons we advocate a distance between the rows of three feet, and a space of two feet in the row is not too much. The stems require support of some kind, and stakes are preferable to string; but of course the stems may be secured to wires whenever it is convenient to run the plants immediately under the glass.

Another point upon which authorities differ is the extent to which Tomatoes should be denuded of their foliage. Some growers condemn the procedure entirely; others reduce their plants to skeletons. Both extremes are objectionable, for when all the leaves are permitted to remain there is delay or partial failure in colouring the fruit, and the almost entire removal of foliage checks the root action injuriously. In practice it answers well to wait until the fruit has set, then by pinching out the leading point of each leaf, commencing at the bottom, ripening and colouring are promoted, and the health of the plant remains unimpaired.

In dull weather, and especially in short days, a difficulty is sometimes experienced in setting the fruit, particularly the first bunch. After fruit has begun to swell on one bunch, the remainder set with comparative ease. A rather higher temperature than usual combined with free movement of the atmosphere is generally sufficient to insure fertilisation. If assistance is necessary, however, water the plants early in the afternoon, and close the house rather before the usual time. The warm atmosphere will develop plenty of pollen, and a gentle shaking of the flower bunches with a slight touch from a hazel twig will liberate visible clouds, which will effectually set the fruit. Another method is to lift a flat label or paper knife against the flowers. The label becomes covered with pollen, and by gently touching each flower with a slight upward pressure a great number can be fertilised in a few minutes. A soft brush passed over the flowers daily has the same effect. Plants in the open ground need no such attention if they are in good health and the season is at all genial. When a bunch of flowers contains one that is fasciated or confused, the flower should be pinched out to prevent the formation of large and ugly fruit. The remainder of the bunch will be the finer for its absence.

OUTDOOR CULTURE.—For the open ground it is important to choose a variety that ripens early. The plants should be vigorous, and they must be carefully hardened before they are put out. Sow the seed in heat in February or March, and when large enough transfer the seedlings to single pots until wanted. Every effort should be made to avoid giving the plants a check, and if room is available they may be potted on to the six-inch size and allowed to form one truss of bloom before planting out, thus saving valuable time. The end of May is usually the right time for transfer to the open, but Tomatoes will not endure a keen east wind or nipping frost. During the prevalence of unfavourable weather it is advisable to wait a week or more rather than risk the destruction of the plants. When the temperature appears to be fairly reliable, put them into holes a foot deep and eighteen inches across, filled with light soil not too rich. For a few nights until the roots take hold slight protection should be at hand to assure safety; Sea Kale pots answer admirably, and are easily placed in position. In addition to beds all sorts of places are suitable for Tomatoes, such as under warm palings or walls, on sloping banks and in sheltered nooks, where they will thrive and yield valuable fruit. Stout stakes are required and should be promptly provided. Pinch out the lateral shoots, and as soon as the fruits commence to colour some of the largest leaves may be partially removed. Early in August nip out the tips of the leaders in order to encourage ripening. Thus in the open garden a supply of this delicacy may be insured for part of the year equal in quality to fruit which is grown under glass. (_See also page 181_.)

The diseases of the Tomato are dealt with in the chapter on The Fungus Pests of certain Garden Plants.

TURNIP

Brassica Rapa

The Turnip is not a difficult garden crop; indeed, the simplest management will produce an ample supply, and any fairly good ground will suffice for it. But whatever is worth doing is worth doing well, and a gardener may be pardoned for taking an especial pride in producing a sufficiency of handsome and tender Turnips. The great point is to insure a succession through a long season, or, say, the whole year round, for Turnips are always in request, and at certain periods of the year delicate young roots are greatly valued for the table.

The finest Turnips are grown in deep, sandy loam, kept in a high state of cultivation. Useful Turnips may be grown on any soil, but a handsome sample of the finest quality cannot be produced on heavy clay or thin limestone. In common with other fast-growing plants of the cruciferous order, Turnips must have lime in some form, and in many gardens it will occasionally be necessary to give a dressing of lime in addition to the ordinary manure. Superphosphate, bone, and old plaster or mortar from destroyed buildings, are all valuable in preparing the soil for this crop.

Times of Sowing.—An early crop of small bulbs may be grown by sowing in January on a very gentle hot-bed as prescribed for early Radishes, and it may be well to add, that in an emergency white Turnip Radishes may be made to take the place of Turnips, both to flavour soups and to appear as a dish in the usual way. Fast-growing Turnips may be sown on a sheltered warm border in February and March, to be carefully watched and protected when unkind weather prevails. In April and May sowings should be made consistently with the probable wants of the household, but the May sowings should comprise two or three sorts in the event of hot dry weather spoiling some of them.

The principal sowings for autumn and winter supplies are made in June and July, but seed may also be sown in August. Ground from which some crop, such as Peas, has just been cleared generally needs little preparation beyond breaking the surface with a hoe, followed by a good raking. Thin the plants early and let them stand finally at six to nine inches apart in the rows. For late crops seed is often sown broadcast, the roots being pulled as they mature.

General Culture.—It is advisable to sow Turnips in drills on a fine tilth, and it is an advantage to have a sufficiency of some stimulating manure near the surface to hurry the growth of the young plant, for the danger of fly belongs to the seed-leaf stage. Generally speaking, the Turnip fly does but little harm in gardens; but where it is much feared, the seed should be sown in prepared drills to encourage a quick growth. Draw the drills twelve to fifteen inches apart, three inches deep, and about the same width, and almost fill them with rotten manure, or with a mixture of earth and guano, or wood ashes; cover this with a little fine soil to prevent injury to the seed; then sow, and lightly conceal the seed with earth as a finish. If the ground is sufficiently moist, growth will commence almost immediately, and the plant will come up strong, and very quickly put forth rough leaves. In the general management more depends on timely and judicious thinning than upon any other point. If Turnips are not well thinned, so that each plant can spread its green head unimpeded by the leaves of a neighbour, a good growth cannot be expected; and thinning by the hoe should be commenced as soon as the rough leaves appear. The operation must be repeated until the plants are at a suitable distance, and then comes the process of singling, which should be done by hand. It will be found that in many cases two or three little plants stand together looking like one. There must be only one left at each station, and that should be the shortest. The distances may vary from four to ten inches, according to the vigour of the variety and the kind of Turnips required. An easy and profitable plan is to allow a certain number of bulbs to swell to supply young Turnips, and, by drawing these, leave room for the remainder of the crop to attain its proper size for storing.

The Turnip likes a light soil, but does not well endure the occasional dryness to which light soils are subject. This fact accounts for many failures of the crop in a hot dry season, for sunshine suits the Turnip, but it must have moisture or suffer deterioration in some way. If, therefore, the soil becomes dry, and there is no prospect of rain, the Turnips should have water, not simply to moisten the surface, but to go to the roots, for frequent watering is not good for the crop, as it tends to spoil the beauty of the bulbs, and promotes a rank leaf-growth which is not wanted. An occasional heavy watering in dry weather will also do much towards the repression of the many enemies that beset this useful root—the jumpers, the grubs, the weevils, and the rest of the vermin will be routed out of their snug hiding-places in the dusty soil when the watering takes place, and the death of many will follow. But so long as the soil is fairly moist at the depth the roots are ranging, there is no need for watering, and the time it would consume may be utilised for other work.

Lifting and Storing.—On the approach of winter a certain portion of the Turnip crop should be lifted and stored. In doing this the tops must be cut off, not too close, but just leaving a slight green neck, and the roots should be rather shortened than removed; at all events, to cut the roots off close is bad practice: when so treated the bulbs do not keep well. Any rough storage answers for Turnips, the object being to keep them plump by excluding the atmosphere, and at the same time render them safe against frost. The portion of the crop left in the ground may be lifted as wanted in the same way as Parsnips, but this should be done systematically, so that the ground which is cleared may be dug over and ridged up before winter. Those that remain will be in a piece, and will give a good crop of spring greens, after which they may be made use of as manure by putting them at the bottom of a trench.

Some of the foes that war against the Turnip crop are alluded to at greater length later on. Happily, the gardener has many friends that are insufficiently known to the farmer, not the least important being the starlings, song birds, and occasionally (but not often) the sparrows. Where the cultivation is good and small birds abound, the Turnip crop is pretty safe, and the general routine of culture sketched above will certainly promote, if it does not absolutely secure, its safety. The worst foes of the Turnip in the field are the fly and the caterpillar; but in the garden, and more especially the old garden, anbury is the most to be feared. When this happens the cultivator may rest satisfied that the soil is in fault, and this may be owing to a bad routine of cropping. Wherever anbury appears, whether on Cabbages or Turnips or any other cruciferous plant, there should be worked out a complete change in the order of cropping, taking care not to put any brassicaceous plants on the plots where the disease has occurred for two or three seasons, and allowing at least one whole year to pass without growing any of the cruciferous order upon them. In the meantime, for other crops the land should be well trenched and limed, and generously tilled. The result will be profitable crops of other kinds of vegetables and a refreshing of the soil that will enable it to carry brassicaceous plants again, with but little risk of the recurrence of anbury. Good cultivation is the only panacea known against the plagues that assail our crops. This does not surely secure them, for the elements are capricious and beyond our control; but where good cultivation prevails the failures are few, and even unfavourable seasons do not utterly obliterate the benefits of past labour.

Swede.—There are several advantages in growing Swedes as one of the garden crops. They are hardy in constitution and prolong the supply of a wholesome vegetable. In districts where Turnips are unsatisfactory, Swedes prove successful, and are appreciated for their delicacy of flavour when grown from stocks which have been carefully selected for the purpose. The culture is in all respects the same as for Turnip. The date of sowing depends on the district. In the north it is safe to sow at the beginning of May, but in the midlands and southern counties of England the end of May or beginning of June is early enough.

VEGETABLE MARROW

Cucurbita Pepo ovifera

The Vegetable Marrow does not, in a general way, obtain the right kind of attention in gardens. It is very generally grown and is much valued as a summer vegetable. But too often the aim of the cultivator is to obtain large Marrows, that at the very best are coarse and troublesome to the cook and are always wanting in substance and flavour, instead of smallish Marrows, which are easily dressed, elegant on the table, and combine with a substantial and somewhat glutinous pulp a most delicious flavour. Two fears beset the average gardener: he is afraid to grow small sorts, and he is afraid to cut them when quite young. When he can overcome these fears he will appreciate the smaller Marrows that have of late years been secured by patient labour in cross-breeding, for while they are of the highest quality, they are also early and productive, far surpassing all the larger Marrows in quickness and usefulness. The market grower we do not pretend to advise, for he must grow what he can sell; and if the smaller Marrows are insufficiently appreciated in gardens, we cannot hope to see them on sale in shops.