The plants should be always topped when young, at the first joint, as before directed; then let them run two joints twice following;[4] afterwards keep them topped at the first joint, except it be blind, which may be easily ascertained by close examination; if you find such to be the case, let it run another joint before it is topped.
It is necessary that the plants should be continued in leaf mould until the middle of January, as there is no other in which they will thrive so well at that season of the year. Their peculiar and tender nature bears a strong resemblance to young children, in the care requisite for their nurture and growth. They require light nourishment, that will easily digest; and no soil is so well calculated for this purpose as leaf-mould, mixed with a little grit; from its excellent properties in absorbing the water.
In ridging out the plants, one thing must be attended to in the preparation of the bed, which has not been before mentioned. Hollow the bed out to the depth of about four inches in the middle, so that if the weather is cold or windy, the dung may be pulled down half way up the hills, when it will be nearly level about the bed; but as soon as the weather becomes mild, it must be drawn away again, or otherwise the heat will be too violent for the roots. As mould is added to the roots, draw the dung away level with the bottom of the hill; then put it half way up again, being, however, regulated in this by the heat of the bed, and the temperature of the weather. After the hills cover nearly three parts of the bed, take the dung out which has been placed round them, and level it with nearly the bottom of the box, leaving three or four inches round the sides to keep out the rankness from the linings, as before directed.
In covering up the plants, a single mat will be sufficient, until they have been ridged out a fortnight, unless the weather is windy or very cold; in such case, make use of a double mat or a little hay; be careful, at the same time, not to give them too much covering at first, as it will draw the plants, and cause them to grow very weak; in this, however, you must be in some degree guided by the heat of the bed, and the temperature of the weather. When there is a good heat, and the weather is still, they will require less; but if there is much wind, or the air is very cold, it must of course be increased. It seldom occurs that plants require much covering until a fortnight before Christmas, when it will be found necessary, if the weather is moderate, to cover them from four to six inches. Instances have occurred, when the author has been obliged to increase the covering to a foot in thickness, from the intense cold; but this, however, is seldom the case; and from four to six inches may generally be considered sufficient from December to April. As the sun increases, and the nights become milder, reduce the covering to three or four inches, until May; from whence to June a single mat, or a little hay or litter will be sufficient. If the weather is now seasonable, and the nights warm, they will not require any covering, but should this not be the case, it is better to continue it even until Midsummer.
Take particular care when covering up, after a fresh lining has been put to the bed, that the mats or hay does not hang over the lights for at least a fortnight, as such will draw the rank steam into the bed, and kill the plants.
The linings should be continued until the weather is fine and settled, which may be expected in the middle of May; but should the weather be cold and unfavourable, it may be necessary to retain them until the middle of June.
In about the third week of the month of January, the plants will require stronger food; and half bog and half leaf mould may be applied. Should there be a difficulty in obtaining bog earth, procure the top spit of light meadow earth, and lay it up for twelve, or, at the least, six months before it is wanted for use. When you mould towards the outside, it may be still stronger, mixing rotten dung or leaf mould, in the proportion of one-fourth, with bog or light meadow earth; observing, however, not to mould up the plants level until some time after fruit has been cut. The beginning of March is the proper time to mould up full.
Let a cavity be left at the back and front of the box of about two inches, to prevent the roots from being injured on the outside of the box by the linings; and to cause the heat to rise freely from the bed.