Pseudobahia peirsonii Plant Care
Pseudobahia peirsonii Munz
Updated · Sources · How we source care data
Pseudobahia peirsonii is a rare species of flowering plant in the family Asteraceae known by the common names San Joaquin adobe sunburst and Tulare pseudobahia. It is endemic to California, where it is known from a few mostly small occurrences along the southeastern side of the San Joaquin Valley where it rises into the Sierra Nevada foothills.
Every 7–10 days
Full sun to partial shade
60–80°F
40–60%
At a glance
How do you care for Pseudobahia peirsonii?
Plant Pseudobahia peirsonii in full sun to partial shade (USDA zones 13a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 60–80°F (16–27°C). Fertilize it every 6 months during the growing season.
Where Is the Pseudobahia peirsonii Native To?
What Is the Pseudobahia peirsonii?
Pseudobahia peirsonii (Pseudobahia peirsonii) belongs to the Asteraceae family within the Pseudobahia genus. Pseudobahia peirsonii is native to California.
Pseudobahia peirsonii displays a low rosette, spreading ground cover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Pseudobahia peirsonii produces small daisy-like yellow flowers in clusters.
Leaf size: approximately 3 inches.
How Often Should You Water a Pseudobahia peirsonii?
Water a young or newly planted Pseudobahia peirsonii every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–10 days
Until established; then in dry spells
What Light Does the Pseudobahia peirsonii Need?
Pseudobahia peirsonii thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Pseudobahia peirsonii Prefer?
Pseudobahia peirsonii tolerates temperatures of 60–80°F. Pseudobahia peirsonii prefers humidity levels of 40–60%.
Temperature
60–80°F
Humidity
40–60%
What Soil Mix Works Best for a Pseudobahia peirsonii?
Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Pseudobahia peirsonii to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Pseudobahia peirsonii?
Feed Pseudobahia peirsonii every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.
Stop feeding by late summer so new growth can harden before winter.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a Pseudobahia peirsonii?
Choose a spot with full sun to partial shade and well-draining sandy loam with added organic matter for moisture retention. Avoid low spots where water collects after rain.
Pseudobahia peirsonii is suited to USDA Zone 13a.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Pseudobahia peirsonii?
Pseudobahia peirsonii can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the plant spacing calculator.
How Do You Prune a Pseudobahia peirsonii?
Prune Pseudobahia peirsonii while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a Pseudobahia peirsonii in Winter?
Pseudobahia peirsonii is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a Pseudobahia peirsonii?
Pseudobahia peirsonii can be propagated through seeds, division of offsets.
Is the Pseudobahia peirsonii Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Pseudobahia peirsonii, 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 Pseudobahia peirsonii?
Pseudobahia peirsonii is susceptible to aphids, whiteflies, spider mites. 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 Pseudobahia peirsonii Need?
Pseudobahia peirsonii grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Pseudobahia peirsonii is native to California. In cooler regions, grow Pseudobahia peirsonii as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Pseudobahia peirsonii 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 Pseudobahia genus (family Asteraceae) — search all Pseudobahia species in the plant lookup.
Pseudobahia peirsonii thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Pseudobahia peirsonii Munz, family Asteraceae (first published in Aliso 2: 84, tab. 12, fig. F, 13, f (1949)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Pseudobahia peirsonii, 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 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.
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