San Clemente Island Brodiaea Plant Care
Triteleia clementina Hoover
Updated · Sources · How we source care data
Triteleia clementina is a rare species of flowering plant known by the common name San Clemente Island triteleia. It is endemic to San Clemente Island, one of the Channel Islands of California, where it is known from about twenty occurrences.
Every 7–10 days
Full sun to partial shade
50–80°F
40–70%
At a glance
How do you care for San Clemente Island Brodiaea?
Water San Clemente Island Brodiaea every 7–10 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–80°F (10–27°C) and 40–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the San Clemente Island Brodiaea Native To?
What Is the San Clemente Island Brodiaea?
San Clemente Island Brodiaea (Triteleia clementina) belongs to the Asparagaceae family within the Triteleia genus. San Clemente Island Brodiaea is native to San Clemente Island, one of the Channel Islands of California. San Clemente Island Brodiaea is also known as Wild Onion, Grassnut.
San Clemente Island Brodiaea displays an upright, clumping perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 0.5 ft. San Clemente Island Brodiaea produces star-shaped flowers in shades of blue, purple, or white.
Leaf size: approximately 8 inches.
How Often Should You Water a San Clemente Island Brodiaea?
Triteleia clementina requires watering every 7–10 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 7–10 days
Let soil partially dry between waterings
What Light Does the San Clemente Island Brodiaea Need?
San Clemente Island Brodiaea thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the San Clemente Island Brodiaea Prefer?
Triteleia clementina grows best at temperatures of 50–80°F. San Clemente Island Brodiaea prefers humidity levels of 40–70%.
Temperature
50–80°F
Humidity
40–70%
What Soil Mix Works Best for a San Clemente Island Brodiaea?
Well-draining sandy loam with added organic matter. Good drainage is essential for San Clemente Island Brodiaea to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a San Clemente Island Brodiaea?
Feed San Clemente Island Brodiaea every 6 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 6 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 San Clemente Island Brodiaea?
Repot every 2-3 years in early 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 San Clemente Island Brodiaea?
San Clemente Island Brodiaea can be propagated through division of offsets, seeds. Similar propagation techniques also apply to hyacinth brodiaea plant care, which shares the same genus.
Is the San Clemente Island Brodiaea Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list San Clemente Island Brodiaea, 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 San Clemente Island Brodiaea?
San Clemente Island Brodiaea is susceptible to thrips, aphids, slugs. 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 San Clemente Island Brodiaea Need?
San Clemente Island Brodiaea grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. San Clemente Island Brodiaea is native to San Clemente Island, one of the Channel Islands of California. In cooler regions, grow San Clemente Island Brodiaea as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
San Clemente Island Brodiaea 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 Triteleia genus — compare its care with other Triteleia species on PlantoScan.
Triteleia is part of the Asparagaceae plant family — browse all Asparagaceae genera and species.
San Clemente Island Brodiaea thrives in bright light and direct sun — see other bright-light plants.
More Triteleia Species
Other Triteleia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Triteleia clementina Hoover, family Asparagaceae (first published in Amer. Midl. Naturalist 25: 82 (1941)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list San Clemente Island Brodiaea, 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.
- Hardiness zone: USDA Zone 12a, 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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