The different modes of cultivating the pine-apple / From its first introduction into Europe to the late improvements of T.A. Knight, esq.

by J. C. Loudon

The plants will continue to grow very fast this and the following month, and should therefore be watered pretty plentifully, at least twice a week; and, in the summer waterings, it should be observed, that it will be of great service to the plants to be watered once a fortnight all over their leaves. If the month of October be wet and cold, the plants should not be watered above twice in that month; but if fine and clear, once a week: and here ends the watering of the fruiting plants for the season. I never give them any water in the months of November and December; and during that time I keep the hot-house in a cold state, but a bottom heat is always required; therefore the tan should have been renewed, and the old part of it screened about the end of October or beginning of November: from which time the bed will generally retain a moderate warmth till the beginning of January, when the tan should again be renewed. From that time the hot-house should be kept a few degrees warmer; and, as soon as the tan begins to ferment, the plants may have a little water given them.

In this month (January) some of the plants will appear set for fruiting, which may be distinguished by the short leaves in their centres; and from that time they should be moderately watered (till the middle of March) and the hot-house should be kept pretty warm; a little air should, however, be admitted, whenever the weather will permit.

About the middle of March it will be proper to renew the tan-bed, and, at the same time, the plants should be divested of a few of their bottom leaves; the mould on the top of the pots should be taken off as deep as can be done without injuring the roots, and the pots filled up with fresh compost-earth, which will add to the vigour of the plants, as well as give a neatness to the whole when finished.

It is very injurious to the plants, and greatly retards the swelling of the fruit, to remove them after this season; therefore, in case the heat of the bed should decline, a fresh heat may be got without moving the plants, by taking out the tan betwixt the pots as deep as possible, and filling that space up with fresh tan.—This method is practised by some even at an earlier season.

The plants at this season will demand a kind, lively bottom heat; and whenever the weather will permit, a great quantity of air should be admitted into the hot-house, the want of a due proportion of which would cause the stems of the fruit to draw themselves weak, and grow tall; after which the fruit never swells kindly.

As the fruit and suckers begin to advance in size, the plants will require plenty of water to support them, which may be given them at least twice, and sometimes three times a week; but too much should not be given them at one time; it is better to give them less at a time, and oftener.

Sticks should be provided to support the fruit before it is grown too large; and, in tying them, care should be taken to leave bandage-room sufficient, making allowance for the swelling of the fruit.

When the suckers are grown to about one foot in length, they should be taken off in the same manner that has been described; and from that time the fruit will swell very fast. As soon as the fruit appears full swelled, the watering such plants as produce them should cease: but it is too general a practice (in order to have the fruit as large as can be got) to continue the watering too long; which causes the fruit to be filled with an insipid, watery, and ill-flavoured juice.

It is easy to know when the Pine becomes ripe by its yellow colour; yet they do not all change in the same manner, but most generally begin at the lower part of the fruit. Such fruit should not be cut till the upper part also begins to change, which sometimes will be many days after, especially in the Sugar-loaf kinds. Sometimes the fruit will first begin to change in the middle, which is a certain indication of its being ripe: such fruit should be cut immediately.

Having thus laid down the culture of the Pine-apple plant, whether raised from seed, by crowns, or suckers, to its final perfection in the fruit, I shall now subjoin some hints and observations; most of which, I hope, will be of use.