Important: Safety Warning
This page recommends pest-control substances such as arsenic compounds, strychnine, or cyanide — in some cases applied to food crops. These substances are lethal to humans and animals, and their use is now banned or strictly controlled.
This information has been left in for historical purposes but should not be acted upon.
Bixa
(its South American name). Arnatto. ORD. Bixineae. Stove evergreen trees, with dichotomous panicles of large reddish flowers, broad cordate leaves, and prickly capsules. A compost of loam and peat is well adapted to their culture. Propagated by seed, sown when ripe in bottom heat; or by cuttings, which root freely in sand, under a hand glass, in heat; the latter is the better method. If grown from seed, the trees attain a large size before they flower; whereas cuttings, taken from a flowering plant and struck, may be brought to flower when small plants.
B. Orellana (Orellana). fl. pale peach-coloured; corymbs terminal, panicled; peduncles two, three, and four-flowered. May to August. l. cordate, ovate, acuminated, entire or angular, smooth on both surfaces. The drug called Arnatto is prepared from the red pulp which covers the seed of this species. It is used in the preparation of chocolate, and by farmers for colouring cheese, and also as an orange or yellow dye for silks. h. 30ft. West Indian Islands, 1690. (B. M. 1456.)