The Book of Pears and Plums Part 7

Plums as a rule do not need nor will they bear as much close pruning as pears and apples. But they need special attention in early life.

STANDARDS.--These must be planted, when other crops are to be grown beneath. Quincunx fashion is the best. The rows, as a rule, should be 24 feet apart, and the trees in each row about 20 feet. Plums do not shade as much as apples and pears, yet it is always wise to avoid overcrowding.

Some sorts are not as spreading or as vigorous as others. Weak growers like the Early Prolific might be placed between Jefferson and Monarch.

Good trees in six or seven years should bring good returns, but the intermediate s.p.a.ce may meanwhile be utilised for strawberries, gooseberries, and so on. Standards should be 6 feet high or more. After planting, cut back the shoots to about one-third of their length, the weakest still more, to promote vigorous growth, and cut just above an outer eye. Keep the centre open. In later years stop gross or robber shoots in June, clipping some leaves of the latter, if necessary. Never allow boughs to cross, and keep all the tree fairly open. When the tree begins to bear, little pruning is necessary. But stopping luxuriant shoots about midsummer is good for the other branches, and for the production of fruit buds before winter. Complete pruning early in August. In winter cut out dead wood, and shorten boughs wherever fresh wood is required. The wood of the Victoria plum is very brittle, and requires special treatment. Shorten the strong growing luxuriant branches of this variety in July; otherwise later on they will break when loaded with fruit. Messrs Bunyard's choice of six for market standards is: Rivers' Early Prolific, Czar, Early Orleans, Victoria, Pond's Seedling, Rivers' Monarch.

HALF STANDARDS (3- feet to 4 feet high) are better, and more manageable. Planted 12 feet apart, gooseberries, etc., may be placed around them; otherwise they may be nearer, even up to 6 or 8 feet. These should be pruned in August unless strong shoots require pinching back.

Stop new side shoots at the sixth leaf to produce fruit-buds. Avoid excess. Wounds made in August have a better chance of healing while the sap is still active. Pyramids are not as useful as bushes; the former require a central stem and special training.

IN BUSHES, keep the tree open, stop strong shoots at midsummer, prune new (side) shoots back to six leaves about mid-August, and take out wood that is not wanted, admitting the sun and air. In winter cut back any boughs where fresh shoots are wanted to a wood bud at an outer eye.

TREES ON WALLS.--Plums are usually put on east walls, but the best repay a south as well as a west aspect. They require and repay care and skill in training. If the wall is low, the horizontal form is best. The branches should be taken several inches below the line along which they are to be trained, and not at right angles; the sap will flow better, and the tendency of branches to die off will be lessened. The first branch should be 1 foot from the ground, the rest 9 inches apart.

Coa.r.s.e stems and branches must be avoided by moderate root-pruning. The wood must be kept near the wall, that wood and fruit may be better ripened. The fan system is better for a high wall. Train shoots on the tree from the nursery in regular order at equal intervals, cutting back only to ripe wood. Pick off growths on the side next the wall, and others badly placed. Lay in new wood every year, and in August or Early September cut out unsightly branches or spurs if there is other wood to replace them. Prune upper part of tree first, and encourage foliage and fruit spurs over every part. Stop strong growing branches at midsummer, and pinch back side shoots to six leaves about mid-August. Fruit buds will follow. Wire on the wall should be 1- inch out, with an interval of 1 foot between each wire.

MANURES

The absence of moisture and the consequent exhaustion have a serious effect on plums, and should never be allowed. Mulch newly-planted trees in light or poor soil; give liquid manure or irrigate in dry weather.

Should the crops be heavy, and the soil at all deficient in lime, the deficiency should be made up by scattering lime some distance around the stems and working it gently in. "An annual dressing of decayed vegetable matter, old manure and lime-rubbish, laid about a yard round the stems, produces very satisfactory results" ("Plums for profit"). Supply this in November. The artificials recommended by R.H.S. for pears are also good for plums. Dr Griffiths recommends cow dung and a mixed manure, composed of 5 parts of kainit, 1 part of magnesium sulphate, 2 parts of superphosphate; 7 lbs. of the mixture to be applied to each tree in autumn, two more pounds in the spring.

Established trees in full health need no aid in an ordinary season if they carry no crop. Damsons should be fed as well as plums.

THINNING

must be carried out severely if the crop is thick. In a good plum season, only very fine and first-rate fruits fetch a good price, and these can only be obtained by thinning the fruit and feeding the trees.

An annual crop (if frost does not interfere) may then be expected. Half the crop in some years should be taken off long before the fruit is ripe. The jam-makers utilise green and half-ripe plums.

GAGES

These are dessert plums, some of the highest excellence, but they usually require a wall or the best soil and situation. The demand for them is very great. Preserved with proper care, they last until plums come again, and often fetch a higher price than the red or dark plums.

The following are the five best:--

1. July Greengage (see before) early in August.

2. Dennistoun's Superb (see before) mid-August.

3. Early Transparent (see before) end of August.

4. Reine Claude Comte d'Althann, briefly Comte d'Althann, a comparatively new plum from Bohemia. First-cla.s.s certificate R.H.S.

"Medium to large, greyish green, deeply flushed and dotted with red, covered with a beautiful white bloom, very heavy crop, habit bushy, compact, vigorous, remarkably good dessert plum, succeeding equally well as a wall tree, bush, or standard, remarkably prolific." R.H.S., R.

August 22.

5. Jefferson (see before).

6. If more are wanted M'Laughlin's Gage is "rather large, pale yellow, flushed with red, a good cropper, habit erect, compact, vigorous, one of the finest dessert plums." R. August 17.

7. Guthrie's Late Green, "very good cropper, habit bushy, compact, vigorous, a most delicious dessert plum." R. August 30.

Nos. 2, 5 and 6 are splendid specimens of American plums, No. 7 is Scotch, named after the late Mr Guthrie of Dundee.

The following are well known but not so good in some respects: Bryanston Gage, Oullin's Golden Gage, Golden Transparent. Coe's Golden Drop has been described. Angelina Burdett is sometimes cla.s.sed with the gages. It is "dark red, shaded with purple, a good cropper, habit bushy and compact, a delicious dessert variety that hangs well in the trees for some time after it is ripe." R. August 22.

MARKET PLUMS

If a planter prefers to grow gages, he must protect his trees from bullfinches and other birds. The former often carry off the buds in winter, and ruin all hopes of a crop. Such a plantation near a wood would usually be a failure. If the trees are washed in early winter with No. II. mixture, the buds will have some protection. Lime should be thrown over the branches on a damp day. The gun in many cases must be at work from dawn to dusk. The gardener must learn to distinguish between friend and foe. Mr Lea's list in "Small Farms in the Midlands" is as follows: Early Prolific, Victoria, Black Diamond ("the wood is remarkably tough"), Pond's Seedling ("tolerably tough"), Persh.o.r.e Egg Plum, _i.e._ Gisborne ("hardiest of all plums, surest cropper, comes early into bearing, the wood tough, and though the price is low, pays well"). He also mentions Prince Englebert and Jemmy Moore ("alias c.o.x's Emperor, alias Denbigh"), but wisely adds, these come in about the same time as Victoria, when there is a glut. Early or late varieties usually sell best. A new variety, Bittern, raised (as so many varieties have been) at Sawbridgeworth, by the late Francis Rivers, seems well worth trying: "Fruit rather large, deep purple, very heavy crop, habit bushy, compact, vigorous, excellent early free-bearing variety. R. August 2."

Curlew is another "early free-cropping purple plum, habit erect, vigorous," also raised by Francis Rivers. Monarch is a late, good, and very saleable plum. It is said that 75 per cent. or more of the plums planted in recent years have been Victorias. Planters should avoid the Victoria glut. Pond's Seedling, red and very large, coming in after Victoria, often sells well. Put up in a small basket it is inviting, and sells for an eating though properly a cooking plum. Early Prolific is also largely planted, but does not suit all soils. The white Magnum Bonum or egg plum (very large), good for cooking and preserving, sells well in London, but needs a strong soil. It is an early September fruit.

Wyedale is popular in Yorkshire, valuable for its lateness, and for keeping sound on the trees when ripe; its habit is diffuse, size rather small, a good cropper. Mr Pearson names Goliath, a large reddish purple plum, "a good cropper, habit diffuse and vigorous, a very useful cooking plum. R. September 7."

At the Plum Congress held at Edinburgh in September 1889 an election of sorts was made with the following result:--

_Dessert Plums_ Votes.

Jefferson 72 Coe's Golden Drop 69 Green Gage 57 Kirke's 57 Early Transparent 25 Oullin's Golden Gage 16 Reine Claude de Bavay 14

_Culinary_ Votes.

Victoria 74 Pond's Seedling 54 White Magnum Bonum 52 Early Prolific 40 Goliath 31 Early Orleans 27

The friend who sent me this list remarks: "Newer plums supersede some of these. Czar does not crack with the wet as Orleans does. I prefer Diamond to Goliath." Kirke's is better on a wall than in the open. The same may be said of Oullin's; neither are grand croppers. Reine Claude de Bavay is a late gage, richly flavoured, but not a good cropper.

GATHERING, PACKING, MARKETING

A step ladder or a Heathman's combined ladder is best for gathering as plum wood is often brittle. Look over the trees several times and gather gradually. Fruit for home use should not be gathered until it is ripe, but for market it should not be quite ripe. Early morning when the fruit is cool is the best time. Dessert fruits generally should be handled as little as possible, otherwise the bloom on them and the appearance are spoilt. Plums are often sent away in round baskets, or oblong flat baskets. The former in the London markets are termed sieves or half-sieves. A sieve holds seven imperial gallons; the diameter is 15 inches, the depth 8 inches. Flat baskets with lids protect the fruit from injury. Stout and strong paper, above, below and around, a.s.sist in saving it. Oblong baskets with handles and without a lid are used in the Midlands and the N. They are called "pots," and local inquiry as to weight should be made. Strong brown paper is useful on the top. The cost per ream is from 10s. to 20s. But non-returnable boxes are better. The baskets are often missing or lost. The sizes of unplaned boxes with lids to be nailed on are usually as follows:--[10]

Gross. Doz.

lbs. Length. Width. Depth. s. d. s. d.

14 10- in. 10- in. 6- in. 26 6 2 6 28 22 " 10- " 6- " 46 0 4 2 42 27 " 15 " 8 " 84 0 7 6

--GLOVER.

Choice dessert plums sent in light boxes (one or two layers only in a box) placed in wood-wool, and with tissue paper covering the inside of the box, and lying between each layer, often sell well. White paper-lace (such as is used for honey sections) sets off good fruit, and makes it more attractive. Pink tissue paper is often used for light fruits. The boxes should be uniform in size and quality of fruit as far as possible.

Tissue paper can be bought at 2s. 6d. to 5s. or more a ream, and should not be grudged. The best wood-wool ranges from 18s. to 25s. per cwt. A few visits to Covent Garden, the best shops, and the Crystal Palace Fruit Shows, will not be time or labour lost.

Plums and damsons for market should be gathered and sent before they are quite ripe; if soft and pulpy on arrival, they are valueless. Sort in size and quality as even as possible: keep back all inferior stuff. Only good produce, well sorted and properly packed, placed on the market in good condition, is likely to sell well. Foreigners as well as neighbours compete for custom. In large establishments a packing room with every convenience close at hand is necessary.[11] The market-agent should daily advise what goods are needed.

STORING AND KEEPING

Plums, as a rule, do not remain good for any length of time after being gathered. They will however last a week or two if laid out in a cool, dark, well constructed place. Slate slabs a.s.sist to keep baskets and fruit cool. Some of the late dessert varieties gathered before they are quite ripe, wrapped in paper, will last in a dry place for a long period. Dr Hogg says that "Ickworth Imperatrice," a large late dessert variety, if allowed to remain on the tree until it shrivels, then wrapt in silk paper and placed in a dry shelf, will last for many weeks. It is a richly-flavoured plum. The remark is probably true of other late varieties; _e.g._, the lovely Golden Transparent, "a delicious plum grown against a wall, but not a success in the open" (R. September 12), or Reine Claude de Bavay, which is late, but a poor bearer. The Ickworth Imperatrice was not tested by the R.H.S., and is not now often grown.

Guthrie's late Green, "a most delicious dessert plum and the heaviest cropper here (_i.e._ Chiswick R.H.S.) of all the gages," is probably one of the best sorts for keeping as described above. Angelina Burdett (see gages) "if allowed to hang till it shrivels becomes a perfect sweetmeat" (Hogg).

INSECT ENEMIES

1. APHIDES are often a great trouble. There are three sorts or more, one called the plum aphis. They attack in spring and cause the leaves to curl up, and so check growth. Steep 4 ozs. of qua.s.sia chips in a gallon of soft water for twenty-four hours. Dissolve 2 ozs. of soft soap in this mixture, and add to the infusion. Apply by a painter's brush, and carefully wash the under side of the leaves (Rivers). On a larger scale: "Boil 1 lb. of chips in a gallon of water for twenty minutes, strain off the chips and add 38 gallons of water. Put 1 lb. of soft soap in a gallon of water until dissolved, then add to the rest.