To the genus brighamia belong 6-7 species of succulent stem plants, originating from the Hawaiian islands, where they are in danger of extinction; in nature they can reach 3-4 meters in height, in a container they remain below the meter. They have a fleshy, erect, rather stocky, brownish-gray, poorly branched, bottle-shaped stem. At the apex of the stem develops a thick tuft of spatulate leaves, 25-30 centimeters long, bright green, shiny and slightly leathery; from autumn until the end of winter the specimens of at least 4-5 years produce small racemes on elongated stems, consisting of 3-7 tubular-white, cream-colored flowers, intensely scented. These plants are very decorative, their cultivation as houseplants derives from the program set up to save this genus from extinction in places of origin, even today part of the proceeds derived from the sale of brighamia flow into the reintegration program in places of origin .
The palm trees of Hawaiiqueste need a lot of light to develop at their best, if possible place themselves in full sun, or in a place where they receive at least 5-6 hours a day of direct sunlight. They fear temperatures below 18-20 ° C, so during the cold months they should be grown at home or in a place sheltered from the cold currents of the season.
Water the hawaii palm regularly throughout the year, always waiting for the ground to dry between one watering and another; in the flowering period we can supply the plant with fertilizer, using a specific liquid fertilizer for succulent plants, with a low nitrogen content to add to the irrigation water. Administer one or two times a month.
The soil is particularly important in the cultivation of a plant. This is because it is the main source of sustenance for plant species. In nature the brighamie grow along the slopes of the Hawaiian volcanoes, we grow them in a soil similar to the one they find in these places: we use a good amount of volcanic lapillus, mixed with a little soil of leaves or compost soil, in order to obtain a substrate soft, rich and very well drained. They have a fairly slow development, so they do not need to be repotted too often.
The multiplication of the Hawaiian palm takes place by seed, each single seed can take months to germinate. The decimation of the specimens present in nature is taking place from the difficulty of these plants to be pollinated, given the length of the floral glasses; It is therefore quite difficult to find brighamia seeds on the market.
Hawaii Palm - Brighamia: Pests and diseases
As for pests and diseases that could create problems for our Hawaiian palm, we find mites and cochineal; excess watering or contact with stagnant water can favor the onset of root rot. Sometimes the leaves in the lower part of the head become yellowish, it is good to remove them and check for the presence of mites; after the removal of the damaged leaves in general the plant produces new ones in a short time.