THE GENESIS OF SOIL.

Soil primarily had its beginning from rock together with animal and vegetable decay, if you can imagine long stretches or periods of time when great rock masses were crumbling and breaking up. Heat, water action, and friction were largely responsible for this. By friction here is meant the rubbing and grinding of rock mass against rock mass. Think of the huge rocks, a perfect chaos of them, bumping, scraping, settling against one another. What would be the result? Well, I am sure you all could work that out. This is what happened: bits of rock were worn off, a great deal of heat was produced, pieces of rock were pressed together to form new rock masses, some portions becoming dissolved in water. Why, I myself, almost feel the stress and strain of it all. Can you?

Soil Genesis and Classification

Then, too, there were great changes in temperature. First everything was heated to a high temperature, then gradually became cool. Just think of the cracking, the crumbling, the upheavals, that such changes must have caused! You know some of the effects in winter of sudden freezes and thaws. But the little examples of bursting water pipes and broken pitchers are as nothing to what was happening in the world during those days. The water and the gases in the atmosphere helped along this crumbling work.

From all this action of rubbing, which action we call mechanical, it is easy enough to understand how sand was formed. This represents one of the great divisions of soil sandy soil. The sea shores are great masses of pure sand. If soil were nothing but broken rock masses then indeed it would be very poor and unproductive. But the early forms of animal and vegetable life decaying became a part of the rock mass and a better soil resulted. So the soils we speak of as sandy soils have mixed with the sand other matter, sometimes clay, sometimes vegetable matter or humus, and often animal waste.

Soils:
Genesis and Geomorphology

Clay brings us right to another class of soils clayey soils. It happens that certain portions of rock masses became dissolved when water trickled over them and heat was plenty and abundant. This dissolution took place largely because there is in the air a certain gas called carbon dioxide or carbonic acid gas. This gas attacks and changes certain substances in rocks. Sometimes you see great rocks with portions sticking up looking as if they had been eaten away. Carbonic acid did this. It changed this eaten part into something else which we call clay. A change like this is not mechanical but chemical. The difference in the two kinds of change is just this: in the one case of sand, where a mechanical change went on, you still have just what you started with, save that the size of the mass is smaller. You started with a big rock, and ended with little particles of sand. But you had no different kind of rock in the end. Mechanical action might be illustrated with a piece of lump sugar. Let the sugar represent a big mass of rock. Break up the sugar, and even the smallest bit is sugar. It is just so with the rock mass; but in the case of a chemical change you start with one thing and end with another. You started with a big mass of rock which had in it a portion that became changed by the acid acting on it. It ended in being an entirely different thing which we call clay. So in the case of chemical change a certain something is started with and in the end we have an entirely different thing. The clay soils are often called mud soils because of the amount of water used in their formation.

The third sort of soil which we farm people have to deal with is lime soil. Remember we are thinking of soils from the farm point of view. This soil of course ordinarily was formed from limestone. Just as soon as one thing is mentioned about which we know nothing, another comes up of which we are just as ignorant. And so a whole chain of questions follows. Now you are probably saying within yourselves, how was limestone first formed?

At one time ages ago the lower animal and plant forms picked from the water particles of lime. With the lime they formed skeletons or houses about themselves as protection from larger animals. Coral is representative of this class of skeleton-forming animal.

As the animal died the skeleton remained. Great masses of this living matter pressed all together, after ages, formed limestone. Some limestones are still in such shape that the shelly formation is still visible. Marble, another limestone, is somewhat crystalline in character. Another well-known limestone is chalk. Perhaps you'd like to know a way of always being able to tell limestone. Drop a little of this acid on some lime. See how it bubbles and fizzles. Then drop some on this chalk and on the marble, too. The same bubbling takes place. So lime must be in these three structures. One does not have to buy a special acid for this work, for even the household acids like vinegar will cause the same result.

Then these are the three types of soil with which the farmer has to deal, and which we wish to understand. For one may learn to know his garden soil by studying it, just as one learns a lesson by study.

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WILD FLOWER GARDEN

A wild-flower garden has a most attractive sound. One thinks of long tramps in the woods, collecting material, and then of the fun in fixing up a real for sure wild garden.

Country Diary Book of Creating a Wild Flower Garden

Many people say they have no luck at all with such a garden. It is not a question of luck, but a question of understanding, for wild flowers are like people and each has its personality. What a plant has been accustomed to in Nature it desires always. In fact, when removed from its own sort of living conditions, it sickens and dies. That is enough to tell us that we should copy Nature herself. Suppose you are hunting wild flowers. As you choose certain flowers from the woods, notice the soil they are in, the place, conditions, the surroundings, and the neighbours.

Suppose you find dog-tooth violets and wind-flowers growing near together. Then place them so in your own new garden. Suppose you find a certain violet enjoying an open situation; then it should always have the same. You see the point, do you not? If you wish wild flowers to grow in a tame garden make them feel at home. Cheat them into almost believing that they are still in their native haunts.

Wild Flowers
(Gardens by Design Series)

Wild flowers ought to be transplanted after blossoming time is over. Take a trowel and a basket into the woods with you. As you take up a few, a columbine, or a hepatica, be sure to take with the roots some of the plant's own soil, which must be packed about it when replanted.

The bed into which these plants are to go should be prepared carefully before this trip of yours. Surely you do not wish to bring those plants back to wait over a day or night before planting. They should go into new quarters at once. The bed needs soil from the woods, deep and rich and full of leaf mold. The under drainage system should be excellent. Then plants are not to go into water-logged ground. Some people think that all wood plants should have a soil saturated with water. But the woods themselves are not water-logged. It may be that you will need to dig your garden up very deeply and put some stone in the bottom. Over this the top soil should go. And on top, where the top soil once was, put a new layer of the rich soil you brought from the woods.

Arizona Wildflowers:
A Year-Round Guide to Nature's Blooms
(Travel Arizona Collection)

Before planting water the soil well. Then as you make places for the plants put into each hole some of the soil which belongs to the plant which is to be put there.

I think it would be a rather nice plan to have a wild-flower garden giving a succession of bloom from early spring to late fall; so let us start off with March, the hepatica, spring beauty and saxifrage. Then comes April bearing in its arms the beautiful columbine, the tiny bluets and wild geranium. For May there are the dog-tooth violet and the wood anemone, false Solomon's seal, Jack-in-the-pulpit, wake robin, bloodroot and violets. June will give the bellflower, mullein, bee balm and foxglove. I would choose the gay butterfly weed for July. Let turtle head, aster, Joe Pye weed, and Queen Anne's lace make the rest of the season brilliant until frost.

Let us have a bit about the likes and dislikes of these plants. After you are once started you'll keep on adding to this wild-flower list.

There is no one who doesn't love the hepatica. Before the spring has really decided to come, this little flower pokes its head up and puts all else to shame. Tucked under a covering of dry leaves the blossoms wait for a ray of warm sunshine to bring them out. These embryo flowers are further protected by a fuzzy covering. This reminds one of a similar protective covering which new fern leaves have. In the spring a hepatica plant wastes no time on getting a new suit of leaves. It makes its old ones do until the blossom has had its day. Then the new leaves, started to be sure before this, have a chance. These delayed, are ready to help out next season. You will find hepaticas growing in clusters, sort of family groups. They are likely to be found in rather open places in the woods. The soil is found to be rich and loose. So these should go only in partly shaded places and under good soil conditions. If planted with other woods specimens give them the benefit of a rather exposed position, that they may catch the early spring sunshine. I should cover hepaticas over with a light litter of leaves in the fall. During the last days of February, unless the weather is extreme take this leaf covering away. You'll find the hepatica blossoms all ready to poke up their heads.

The spring beauty hardly allows the hepatica to get ahead of her. With a white flower which has dainty tracings of pink, a thin, wiry stem, and narrow, grass-like leaves, this spring flower cannot be mistaken. You will find spring beauties growing in great patches in rather open places. Plant a number of the roots and allow the sun good opportunity to get at them. For this plant loves the sun.

The other March flower mentioned is the saxifrage. This belongs in quite a different sort of environment. It is a plant which grows in dry and rocky places. Often one will find it in chinks of rock. There is an old tale to the effect that the saxifrage roots twine about rocks and work their way into them so that the rock itself splits. Anyway, it is a rock garden plant. I have found it in dry, sandy places right on the borders of a big rock. It has white flower clusters borne on hairy stems.

The columbine is another plant that is quite likely to be found in rocky places. Standing below a ledge and looking up, one sees nestled here and there in rocky crevices one plant or more of columbine. The nodding red heads bob on wiry, slender stems. The roots do not strike deeply into the soil; in fact, often the soil hardly covers them. Now, just because the columbine has little soil, it does not signify that it is indifferent to the soil conditions. For it always has lived, and always should live, under good drainage conditions. I wonder if it has struck you, how really hygienic plants are? Plenty of fresh air, proper drainage, and good food are fundamentals with plants.

It is evident from study of these plants how easy it is to find out what plants like. After studying their feelings, then do not make the mistake of huddling them all together under poor drainage conditions.

I always have a feeling of personal affection for the bluets. When they come I always feel that now things are beginning to settle down outdoors. They start with rich, lovely, little delicate blue blossoms. As June gets hotter and hotter their colour fades a bit, until at times they look quite worn and white. Some people call them Quaker ladies, others innocence. Under any name they are charming. They grow in colonies, sometimes in sunny fields, sometimes by the road-side. From this we learn that they are more particular about the open sunlight than about the soil.

If you desire a flower to pick and use for bouquets, then the wild geranium is not your flower. It droops very quickly after picking and almost immediately drops its petals. But the purplish flowers are showy, and the leaves, while rather coarse, are deeply cut. This latter effect gives a certain boldness to the plant that is rather attractive. The plant is found in rather moist, partly shaded portions of the woods. I like this plant in the garden. It adds good colour and permanent colour as long as blooming time lasts, since there is no object in picking it.

There are numbers and numbers of wild flowers I might have suggested. These I have mentioned were not given for the purpose of a flower guide, but with just one end in view your understanding of how to study soil conditions for the work of starting a wild-flower garden.

If you fear results, take but one or two flowers and study just what you select. Having mastered, or better, become acquainted with a few, add more another year to your garden. I think you will love your wild garden best of all before you are through with it. It is a real study, you see.

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LANDSCAPE GARDENING.

Landscaping Your Home:
Creative Ideas from America's Best Gardeners
(Fine Gardening Design Guides)

Landscape gardening has often been likened to the painting of a picture. Your art-work teacher has doubtless told you that a good picture should have a point of chief interest, and the rest of the points simply go to make more beautiful the central idea, or to form a fine setting for it. So in landscape gardening there must be in the gardener's mind a picture of what he desires the whole to be when he completes his work.

From this study we shall be able to work out a little theory of landscape gardening.

Let us go to the lawn. A good extent of open lawn space is always beautiful. It is restful. It adds a feeling of space to even small grounds. So we might generalize and say that it is well to keep open lawn spaces. If one covers his lawn space with many trees, with little flower beds here and there, the general effect is choppy and fussy. It is a bit like an over-dressed person. One's grounds lose all individuality thus treated. A single tree or a small group is not a bad arrangement on the lawn. Do not centre the tree or trees. Let them drop a bit into the background. Make a pleasing side feature of them. In choosing trees one must keep in mind a number of things. You should not choose an overpowering tree; the tree should be one of good shape, with something interesting about its bark, leaves, flowers or fruit. While the poplar is a rapid grower, it sheds its leaves early and so is left standing, bare and ugly, before the fall is old. Mind you, there are places where a row or double row of Lombardy poplars is very effective. But I think you'll agree with me that one lone poplar is not. The catalpa is quite lovely by itself. Its leaves are broad, its flowers attractive, the seed pods which cling to the tree until away into the winter, add a bit of picture squeness. The bright berries of the ash, the brilliant foliage of the sugar maple, the blossoms of the tulip tree, the bark of the white birch, and the leaves of the copper beech all these are beauty points to consider.

Place makes a difference in the selection of a tree. Suppose the lower portion of the grounds is a bit low and moist, then the spot is ideal for a willow. Don't group trees together which look awkward. A long-looking poplar does not go with a nice rather rounded little tulip tree. A juniper, so neat and prim, would look silly beside a spreading chestnut. One must keep proportion and suitability in mind.

I'd never advise the planting of a group of evergreens close to a house, and in the front yard. The effect is very gloomy indeed. Houses thus surrounded are overcapped by such trees and are not only gloomy to live in, but truly unhealthful. The chief requisite inside a house is sunlight and plenty of it.

As trees are chosen because of certain good points, so shrubs should be. In a clump I should wish some which bloomed early, some which bloomed late, some for the beauty of their fall foliage, some for the colour of their bark and others for the fruit. Some spireas and the forsythia bloom early. The red bark of the dogwood makes a bit of colour all winter, and the red berries of the barberry cling to the shrub well into the winter.

Certain shrubs are good to use for hedge purposes. A hedge is rather prettier usually than a fence. The Californian privet is excellent for this purpose. Osage orange, Japan barberry, buckthorn, Japan quince, and Van Houtte's spirea are other shrubs which make good hedges.

I forgot to say that in tree and shrub selection it is usually better to choose those of the locality one lives in. Unusual and foreign plants do less well, and often harmonize but poorly with their new setting.

Landscape gardening may follow along very formal lines or along informal lines. The first would have straight paths, straight rows in stiff beds, everything, as the name tells, perfectly formal. The other method is, of course, the exact opposite. There are danger points in each.

The formal arrangement is likely to look too stiff; the informal, too fussy, too wiggly. As far as paths go, keep this in mind, that a path should always lead somewhere. That is its business to direct one to a definite place. Now, straight, even paths are not unpleasing if the effect is to be that of a formal garden. The danger in the curved path is an abrupt curve, a whirligig effect. It is far better for you to stick to straight paths unless you can make a really beautiful curve. No one can tell you how to do this.

Garden paths may be of gravel, of dirt, or of grass. One sees grass paths in some very lovely gardens. I doubt, however, if they would serve as well in your small gardens. Your garden areas are so limited that they should be re-spaded each season, and the grass paths are a great bother in this work. Of course, a gravel path makes a fine appearance, but again you may not have gravel at your command. It is possible for any of you to dig out the path for two feet. Then put in six inches of stone or clinker. Over this, pack in the dirt, rounding it slightly toward the centre of the path. There should never be depressions through the central part of paths, since these form convenient places for water to stand. The under layer of stone makes a natural drainage system.

A building often needs the help of vines or flowers or both to tie it to the grounds in such a way as to form a harmonious whole. Vines lend themselves well to this work. It is better to plant a perennial vine, and so let it form a permanent part of your landscape scheme. The Virginia creeper, wistaria, honeysuckle, a climbing rose, the clematis and trumpet vine are all most satisfactory.

close your eyes and picture a house of natural colour, that mellow gray of the weathered shingles. Now add to this old house a purple wistaria. Can you see the beauty of it? I shall not forget soon a rather ugly corner of my childhood home, where the dining room and kitchen met. Just there climbing over, and falling over a trellis was a trumpet vine. It made beautiful an awkward angle, an ugly bit of carpenter work.

Of course, the morning-glory is an annual vine, as is the moon-vine and wild cucumber. Now, these have their special function. For often, it is necessary to cover an ugly thing for just a time, until the better things and better times come. The annual is 'the chap' for this work.

Along an old fence a hop vine is a thing of beauty. One might try to rival the woods' landscape work. For often one sees festooned from one rotted tree to another the ampelopsis vine.

Flowers may well go along the side of the building, or bordering a walk. In general, though, keep the front lawn space open and unbroken by beds. What lovelier in early spring than a bed of daffodils close to the house? Hyacinths and tulips, too, form a blaze of glory. These are little or no bother, and start the spring aright. One may make of some bulbs an exception to the rule of unbroken front lawn. Snowdrops and crocuses planted through the lawn are beautiful. They do not disturb the general effect, but just blend with the whole. One expert bulb gardener says to take a basketful of bulbs in the fall, walk about your grounds, and just drop bulbs out here and there. Wherever the bulbs drop, plant them. Such small bulbs as those we plant in lawns should be in groups of four to six. Daffodils may be thus planted, too. You all remember the grape hyacinths that grow all through Katharine's side yard.

Gaia's Garden:
A Guide to Home-Scale Permaculture

The place for a flower garden is generally at the side or rear of the house. The backyard garden is a lovely idea, is it not? Who wishes to leave a beautiful looking front yard, turn the corner of a house, and find a dump heap? Not I. The flower garden may be laid out formally in neat little beds, or it may be more of a careless, hit-or-miss sort. Both have their good points. Great masses of bloom are attractive.

You should have in mind some notion of the blending of colour. Nature appears not to consider this at all, and still gets wondrous effects. This is because of the tremendous amount of her perfect background of green, and the limitlessness of her space, while we are confined at the best to relatively small areas. So we should endeavour not to blind people's eyes with clashes of colours which do not at close range blend well. In order to break up extremes of colours you can always use masses of white flowers, or something like mignonette, which is in effect green.

Finally, let us sum up our landscape lesson. The grounds are a setting for the house or buildings. Open, free lawn spaces, a tree or a proper group well placed, flowers which do not clutter up the front yard, groups of shrubbery these are points to be remembered. The paths should lead somewhere, and be either straight or well curved. If one starts with a formal garden, one should not mix the informal with it before the work is done.

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MAKING A GARDEN

Making the Modern Garden

The first thing in garden making is the selection of a spot. Without a choice, it means simply doing the best one can with conditions. With space limited it resolves itself into no garden, or a box garden. Surely a box garden is better than nothing at all.

But we will now suppose that it is possible to really choose just the right site for the garden. What shall be chosen? The greatest determining factor is the sun. No one would have a north corner, unless it were absolutely forced upon him; because, while north corners do for ferns, certain wild flowers, and begonias, they are of little use as spots for a general garden.

If possible, choose the ideal spot a southern exposure. Here the sun lies warm all day long. When the garden is thus located the rows of vegetables and flowers should run north and south. Thus placed, the plants receive the sun's rays all the morning on the eastern side, and all the afternoon on the western side. One ought not to have any lopsided plants with such an arrangement.

Suppose the garden faces southeast. In this case the western sun is out of the problem. In order to get the best distribution of sunlight run the rows northwest and southeast.

The idea is to get the most sunlight as evenly distributed as possible for the longest period of time. From the lopsided growth of window plants it is easy enough to see the effect on plants of poorly distributed light. So if you use a little diagram remembering that you wish the sun to shine part of the day on one side of the plants and part on the other, you can juggle out any situation. The southern exposure gives the ideal case because the sun gives half time nearly to each side. A northern exposure may mean an almost entire cut-off from sunlight; while northeastern and southwestern places always get uneven distribution of sun's rays, no matter how carefully this is planned.

The garden, if possible, should be planned out on paper. The plan is a great help when the real planting time comes. It saves time and unnecessary buying of seed.

New garden spots are likely to be found in two conditions: they are covered either with turf or with rubbish. In large garden areas the ground is ploughed and the sod turned under; but in small gardens remove the sod. How to take off the sod in the best manner is the next question. Stake and line off the garden spot. The line gives an accurate and straight course to follow. Cut the edges with the spade all along the line. If the area is a small one, say four feet by eighteen or twenty, this is an easy matter. Such a narrow strip may be marked off like a checkerboard, the sod cut through with the spade, and easily removed. This could be done in two long strips cut lengthwise of the strip. When the turf is cut through, roll it right up like a roll of carpet.

But suppose the garden plot is large. Then divide this up into strips a foot wide and take off the sod as before. What shall be done with the sod? Do not throw it away for it is full of richness, although not quite in available form. So pack the sod grass side down one square on another. Leave it to rot and to weather. When rotted it makes a fine fertilizer. Such a pile of rotting vegetable matter is called a compost pile. All through the summer add any old green vegetable matter to this. In the fall put the autumn leaves on. A fine lot of goodness is being fixed for another season.

Even when the garden is large enough to plough, I would pick out the largest pieces of sod rather than have them turned under. Go over the ploughed space, pick out the pieces of sod, shake them well and pack them up in a compost heap.

Mere spading of the ground is not sufficient. The soil is still left in lumps. Always as one spades one should break up the big lumps. But even so the ground is in no shape for planting. Ground must be very fine indeed to plant in, because seeds can get very close indeed to fine particles of soil. But the large lumps leave large spaces which no tiny root hair can penetrate. A seed is left stranded in a perfect waste when planted in chunks of soil. A baby surrounded with great pieces of beefsteak would starve. A seed among large lumps of soil is in a similar situation. The spade never can do this work of pulverizing soil. But the rake can. That's the value of the rake. It is a great lump breaker, but will not do for large lumps. If the soil still has large lumps in it take the hoe.

Making Miniature Gardens
(Master Craftsmen)

Many people handle the hoe awkwardly. The chief work of this implement is to rid the soil of weeds and stir up the top surface. It is used in summer to form that mulch of dust so valuable in retaining moisture in the soil. I often see people as if they were going to chop into atoms everything around. Hoeing should never be such vigorous exercise as that. Spading is vigorous, hard work, but not hoeing and raking.

After lumps are broken use the rake to make the bed fine and smooth. Now the great piece of work is done.

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