Brighamia insignis
Genus
Brighamia
Species
insignis
Hawaiian Names with Diacritics
- Ālula
- ʻŌlulu
- Hāhā
- Pū aupaka
Hawaiian Names
- Alula
- Haha
- Olulu
- Pu aupaka
Synonyms
- Brighamia citrina
Names with Unknown Sources
- Cabbage-On-a-Baseball-Bat
- Cabbage-On-a-Stick
Distribution Status
Endemic
Endangered Species Status
Federally Listed
Plant Form / Growth Habit
- Shrub
Mature Size, Height
- Shrub, Small, 2 to 6
- Shrub, Medium, 6 to 10
- Shrub, Tall, Greater than 10
Mature Size, Width
Uncommon to be wider than 3 feet or so even with branching. [Michael DeMotta, NTBG]
Life Span
Long lived (Greater than 5 years)
Landscape Uses
- Specimen Plant
- Container
Plant Produces Flowers
Yes
Flower Type
Showy
Flower Colors
- Yellow
Additional Flower Color Information
The yellow tubular flowers are arranged in groups of three to eight. [1]
Blooming Period
- Sporadic
- September
- October
Additional Blooming Period Information
In the wild, ālulu blooms in September and October. Flowers can be induced any time of the year in cultivation and sometimes blooms from 2 to 4 times a year. Even with irrigation, it seems that the amount of rain and cloudiness may affect their flowering cycles. [Michael DeMotta, NTBG]
Plant texture
- Coarse
Additional Plant Texture Information
Ālulu leaves are only at the top of the plant and in a rosette and range between 5 to 8 inches long.
Leaf Colors
- Light Green
- Medium Green
Additional Leaf Color Information
Bright lime green to dark green.
Source of Fragrance
Flower
Additional Fragrance Information
Wonderfully fragrant!
Additional Pest & Disease Information
The introduced carmine spider mite (Tetranychus cinnabarinus) can infest plants in a short while and has been observed to cause leaf loss in both wild and cultivated plants. [4]
Slugs and snails can be serious pests especially if plants are in the ground. African snails, especially, will devour all the leaves and the tips of all the stems in no time, killing the plant. [Michael DeMotta, NTBG]
Fertilizer
Ālulu respond well to regular applications of foliar fertilizer or applications of slow release fertilizer twice a year. Using a high phosphorus fertilizer will induce blooming. Apply 3 months before. Ālula like nitrogen. So apply Miracle Gro (half strength) and foliar feed once a month. Osmocote Plus is used and replenished as needed. [Michael DeMotta, NTBG]
Pruning Information
Remove brown leaves for a cleaner appearance.
Water Requirements
Dry
Additional Water Information
In pots, allow plants to dry slightly before watering. Overwatering can easily rot and kill the plant or cause fungal infection. The thick succulent stem allow plants to store water and survive periods of drought. Leaves diminish in size with water stored in plant decreases. [2] Ālula can take daily watering as long as they are able to dry out. Good drainage and soil aeration are essential. [Michael DeMotta, NTBG]
Soil must be well drained
Yes
Light Conditions
- Full sun
- Partial sun
Additional Lighting Information
Ālula does okay in full sun, but some full sun with some part shade seems to work best. [Michael DeMotta, NTBG]
Spacing Information
Usually in containers. If planted in ground about 2 to 3 feet apart.
Tolerances
- Drought
- Wind
Soils
- Cinder
Limitations
Ālula can be challenging to maintain in the ground because of snail/slug damage or poor drainage. Best if kept in pots. These succulents will rot if there is not sufficient drainage. Having lost its natural pollinators in the wild, hand pollination is required for fruit development.
Natural Zones
- 150 to 1000, 50 to 100
- 1000 to 1999, 50 to 100
Natural Range
- Niʻihau
- Kauaʻi
Additional Growth Environment Information
Once found mostly on windswept sea cliffs of Kauaʻi (Nā Pali Coast, Hāʻupu Ridge, Nāwiliwili) and most likely extinct on Niʻihau (Kaʻali Cliff).
Ālula experienced at serious set back in 1992 when Hurricane ʻIniki destroyed half the natural population (60 to 70 plants) along the Nā Pali Coast on Kauaʻi. The combined Huricanes of ʻIwa (1982) and ʻIniki destroyed 10 of the remaining 12 individuals in the Hāʻupu area. [1] Locations where the last populations are known to exist on the Nā Pali coast were searched. Only one ālula is known to remain in the wild. [Michael DeMotta, NTBG, pers. comm. with K. Wood]
Special Notes and Information
The two species belong to to the endemic genus Brighamia. Pua ʻala (Brighamia rockii) from Molokaʻi has white flowers while ālula (Brighamia insignis) has yellow flowers. While both species can grow to an amazing height of 16 feet, Brighamia insignis tends to be a larger plant than B. rockii. [1,3] Ālula and puaʻala are perfectly designed for their windy habitats on steep coastal cliffs. The roots penetrate into rocky crevices and the swollen base of the plants allows them to rock in the strong wind. [2] Both species of Brighamia have lost their natural pollinators and now need hand pollination for fruit and seed production.
The Latin name of the featured species "insignis" (insignia) means outstanding or distinguished in reference the plants unique appearance. [1]
Landscape Use
Ālula are rather easy to cultivate in pots but do require dry conditions in a partly sunny location. They can be given frequent watering in pots but use a well-aerated soil mix (i.e. for succulents and cactus) that allows for immediate or perfect drainage. Black cinder is an excellent component to add to the soil mix whether in pots or outplanting in the ground.
If grown in the ground, provide very good drainage in partly sun areas and protect from slugs and snails.
Additional References
[1] "Recovery Plan for Kauaʻi Plant Cluster," pages 24, 26.
[2] "Hawaiʻi's Vanishing Flora" by Bert Y. Kimura & Kenneth M. Nagata, page 58.
[3] "Recovery Plan for Molokaʻi Plant Cluster," page 30.
[4] Hawaii's CWCS Fact Sheets http://www.state.hi.us/dlnr/dofaw/cwcs/Conservation_need.htm [Accessed on 12/23/09]
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