Photo: David Eickhoff from Pearl City, Hawaii, USACC BY 2.0via Wikimedia Commonsresized / cropped
Bidens campylotheca Plant Care
Bidens wiebkei Sherff
Updated · Sources · How we source care data
Bidens wiebkei, the Molokaʻi koʻokoʻolau or Wiebke's beggarticks, is a species of flowering plant in the family Asteraceae. It belongs to the genus Bidens, collectively called kokoʻolau or koʻokoʻolau in the Hawaiian language. It is found only on Molokaʻi in the Hawaiian Islands. There are three occurrences of the plant remaining, for a total population of fewer than 1000.
Every 3–5 days
Full sun to partial shade
60–80°F
40–60%
At a glance
How do you care for Bidens campylotheca?
Water Bidens campylotheca every 3–5 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–80°F (16–27°C) and 40–60% humidity. Fertilize it every 4 months during the growing season.
What Is the Bidens campylotheca?
Bidens campylotheca (Bidens wiebkei) belongs to the Asteraceae family within the Bidens genus. Bidens campylotheca is also known as Bidens nematocera.
Bidens campylotheca displays an upright, branching annual growth habit, reaching up to 2 ft tall with a spread of approximately 1.5 ft. Bidens campylotheca produces small, daisy-like flowers in shades of yellow, orange, or white.
Leaf size: approximately 2 inches.
How Often Should You Water a Bidens campylotheca?
Bidens wiebkei requires watering every 3–5 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 3–5 days
Let soil partially dry between waterings
What Light Does the Bidens campylotheca Need?
Bidens campylotheca thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Bidens campylotheca Prefer?
Bidens wiebkei grows best at temperatures of 60–80°F. Bidens campylotheca prefers humidity levels of 40–60%.
Temperature
60–80°F
Humidity
40–60%
What Soil Mix Works Best for a Bidens campylotheca?
Well-draining soil with high organic content, such as loam or sandy loam. Good drainage is essential for Bidens campylotheca to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Bidens campylotheca?
Feed Bidens campylotheca every 4 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 4 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Bidens campylotheca?
Annually in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Bidens campylotheca?
Bidens campylotheca can be propagated through seeds. Similar propagation techniques also apply to spanish needles plant care, which shares the same genus.
Is the Bidens campylotheca Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Bidens campylotheca, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Bidens campylotheca?
Bidens campylotheca is susceptible to aphids, spider mites, whiteflies. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Bidens campylotheca Need?
Bidens campylotheca grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Bidens campylotheca as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Bidens campylotheca is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Bidens genus — compare its care with other Bidens species on PlantoScan.
Bidens is part of the Asteraceae plant family — browse all Asteraceae genera and species.
Bidens campylotheca thrives in bright light and direct sun — see other bright-light plants.
More Bidens Species
Other Bidens species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Bidens wiebkei Sherff, family Asteraceae (first published in Bot. Gaz. 86: 435 (1928)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Bidens campylotheca, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Photo: David Eickhoff from Pearl City, Hawaii, USA, CC BY 2.0, Wikimedia Commons — original.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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