Rumphius has remarked, that the trees which yield cinnamon, cassia, and clove bark (Cinnamonum Culilaban), though so much alike, are hardly ever found in the same countries.
The term clove bark has been applied to the barks of two different trees belonging to the natural order Laurineæ. One of these barks is frequently called "Culilaban bark." It consists of almost flat pieces, and is obtained from Cinnamonum Culilaban, a tree growing in Amboyna, and probably other parts of the Moluccas.
The other bark, known as clove bark, occurs in quills, which are imported from South America. Murray says it is produced by the Myrtus carophyllata, a tree termed by Decandolle Syzgium carophyllæum. It appears, however, that this is an error, for both Nees and Von Martius declare it to be the produce of Dicypellium caryophyllatum; and the last quoted authority states that this tree is the noblest of all the laurels found in the Brazils, where it is called "Pao Cravo." It grows at Para and Rio Negro.
Cinnamon may be propagated by seeds, plants, or layers; roots also, if carefully transplanted, will thrive in favorable localities, and yield useful shoots in twelve months. It is usually cultivated from suckers, which should not have more than three or four leaves, and require continual watering. If raised from seed, the young plants are kept in a nursery for a year or two, and then transplanted; but the trees from seeds are longer arriving at maturity. The plants are kept well earthed about the roots to retain the moisture, and coco-nut husks are placed above them, which in time form an excellent compost.
A cinnamon plantation, even in a favorable locality, seldom yields much return until eight or nine years have elapsed.
The mode of cultivation pursued by the natives differs from that followed in the plantations of the Europeans. The native system is to allow the cinnamon to grow large before cutting; the European practice is to cut it young. The result is that the native produces quantity, but coarse; the European produces quality, but less in quantity. I have found, in conversation with the native growers, that they consider the bush or tree decidedly weakened by its being kept down by constant cutting twice a year; and that their plants are stronger and better. It is not absolutely an original opinion, but I think the two systems might be judiciously blended. In cutting the cinnamon sticks for peeling, as the Europeans do it twice a year, there is always risk of losing much valuable young wood, which is destroyed in slashing into the bushes with catties (bill-hooks) to take out that which is in a fit state for peeling, all of which is so much loss from the next cutting; and on this ground I should be inclined to advocate cutting once a year. There are, I know, other considerations than the mere growth of the sticks to be taken into account. Of these may be named the time when the bark peels best from the stick, which of course must depend upon age as well as season, the excited or unexcited state of the shoots, and their several effects upon the quality of the spice.
Weeding the plantations does not seem to be of so much consequence, if the shrub gets plenty of free air all round it.
Cinnamon land continues to yield abundantly crop after crop, not for years, but for scores of years. The greater portion of the late preserved plantations in Ceylon were planted by the Dutch, one hundred years ago, and the bushes are stated to be as vigorous as ever, and quite likely to go on yielding crops till the year 2000. This productiveness can only be accounted for on Liebig's principle of returning to the soil a portion of what we take from it. In the operation of peeling cinnamon, the tops and lateral branches are cut off, and left by the peelers on the ground close to the bushes. These, no doubt, furnish a considerable quantity of manure to the plants.
The general appearance of the plantation is that of a copse, with laurel leaves and stems, about the thickness of hazel; occasionally a tree may be seen which, having been allowed to grow for seed, has reached a height of forty or fifty feet, with a trunk eighteen inches in diameter. When in full bloom, the cinnamon bushes have a very beautiful appearance, the small white petals affording a most agreeable contrast with the flame-colored extremities of the upper, and the dark green of the inferior foliage, with the blossoms of various lovely parasitical plants.
The cinnamon tree flourishes only in a small portion of the island of Ceylon. It is chiefly confined to the south-west angle, formed by the sea coast, from Tangalle in the south to Chilaw on the west. It is in a climate of agreeable temperature, which is at once hot and moist; hot from its tropical position, and moist from the frequency and plentifulness of rains. The general level of the country is low, in the midst of fresh-water lakes, divided from the sea by a narrow riband of land. And the water in the soil of the cinnamon gardens is of extraordinary purity, so as to be for that reason much in request in the neighbouring city as a beverage. This exact combination of influences does not occur anywhere else in the island, at least not in the same degree.