Cabbage on a stick
Brighamia insignis · Campanulaceae
📷 Daderot. · CC BY-SA 3.0
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around cabbage on a stick and prepare for winter.
ID card
- Scientific name
- Brighamia insignis
- Family
- Campanulaceae
- Origin
- Hawaiian Islands (endemic species)
- Form
- Succulent shrub
- Foliage
- Persistent, fleshy and dense
- Flowering
- June to August, tubular yellow flowers
- Adult size
- Up to 120 cm in height
- Growth
- Slow to moderate
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability low.
Expert tips
The key tip
Brighamia insignis is an exotic succulent-semiflower: bright sunlight (but not direct scorching at 45°C), small pot with excellent drainage (cactus mix), rare but regular watering during growth.
The common mistake
Keeping the soil permanently moist or planting too deep: the fleshy base rots silently, and you only notice when it's too late.
The pro's trick
Repot every 2-3 years in spring just before active growth; a pot barely larger encourages stability; stake it lightly if it becomes too heavy.
Care
Watering
Water moderately during the growing season (spring-summer), allowing the substrate to dry between waterings. In fall-winter, greatly reduce water intake. Avoid stagnant water which causes root rot, particularly critical for this succulent plant.
Light Exposure
Place this plant in full sun or very bright light, ideally 6 to 8 hours of direct sunlight daily. Insufficient light leads to etiolation and weakens the plant. Indoors, prefer a south or west-facing window.
Soil and Substrate
Use very well-draining potting soil, enriched with perlite or coarse sand (40 to 50% of the mixture). Brighamia dreads stagnant moisture; light and porous soil is essential for its water balance.
Fertilizer
Fertilize lightly during the growing season (April to September) with diluted balanced fertilizer, every 3 to 4 weeks. Stop feeding in fall-winter. Overfeeding promotes weak and unbalanced growth.
Pruning and Shaping
Remove dead or diseased leaves by pinching gently. Light structural pruning can be done in spring to densify branching. This plant has a naturally elegant form; intervene with restraint.
Diseases and Pests
Watch for mealybugs and spider mites, particularly indoors in dry conditions. Root rot and stem dieback occur mainly with excessive moisture or too-frequent watering. Maintain good air circulation and respect the watering cycle.
Did you know?
Brighamia insignis is a rare and endangered species in Hawaii, with only a few wild individuals remaining. Discovered in the 19th century, it fascinates botanists with its adaptation to arid conditions. In cultivation, this plant symbolizes conservation efforts for Hawaiian endemic species.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
Add this plant to my garden →Plants from the same family
- Peach-leaved bellflowerCampanula persicifolia
- Clustered bellflowerCampanula glomerata
- Trailing bellflowerCampanula poscharskyana
- Dalmatian bellflowerCampanula portenschlagiana
- PānakenakeLobelia angulata
- Carpathian bellflowerCampanula carpatica
Tips generated and checked by Viridia — adapt them to your local climate.