When the plants are potted off, top them at the second break; that is, let them grow to two leaves; then take out the break, which in some kinds is in the centre, and in others in the second leaf. If you require the fruit very fine, two plants will be sufficient in a light; but should there be no particular necessity in that respect, and the lights are sufficiently capacious, three may be matured extremely well.
Have four runners to a light; that is, if two plants, two runners to each; but if three, two runners to one plant, and one to each of the other two. If the lights are large, they may be suffered to run to eight joints; but if, on the contrary, the lights are confined, six will be sufficient; and all other breaks that come out at home, with the first break that issues from the runners, should be effectually taken away, in order that the others may derive strength and nourishment. As soon as they make the first breaks from the runners, which by some are denominated cross bars, top them at the first joint, and in most sorts they will generally show fruit; but if it should so happen that this does not succeed, top them again, when they are certain of showing fruit at the second.
If they are impregnated in the same manner as prescribed in the directions for the cucumber, there will be no difficulty in setting the fruit, which will also show much bolder, and possess greater strength when topped in close.
Every description of melon will be brought to a greater degree of perfection, by being suffered to swell off on the first shows, which can alone be effected by keeping them thin of vine: if this is particularly attended to, no apprehension need be entertained of the fruit being small or delicate, as, in proportion to the quantity of vine, so it decreases the strength and vigour of the plants.
Great care is necessary in watering the plants: when they are young, it should be applied with a rose; but as soon as the runners are extended all over the bed, that may be dispensed with. If the weather is dull, a small quantity of water will be sufficient; and if very fine, more must be applied carefully without a rose, which will be found beneficial in causing them to set more freely.[8] An insufficiency of moisture is an error too prevalent with many gardeners in the culture of the melon, and indeed the inferiority of their fruit, both in weight and flavour, may be greatly attributed to want of judgment in this particular; for if the plants are kept thin of vine, the necessity of which has been before stated, they are of course more open to the air, and the sun has greater power in drying up the soil, consequently the plants will become exhausted, and the fruit will ripen before its growth is properly matured.
The Early Cantaloupe melon, if left to its full time, will be five weeks from the period of setting before it ripens; the Stroud about six; the Scarlet seven; and the Black Rock upwards of seven; there will, however, be some difference between those forced early with bottom heat, and those grown late; the early ones coming to perfection three or four days, or even a week before the other.
The proper time to sow for under-ground melons, that is, such as are grown without linings, is from the twenty-fifth of March to the twentieth of June; observing, at the same time, that those which are sown in March will require stronger beds than those that are set three weeks or a month later.