Benitoites Sun Cup Plant Care
Camissonia benitensis P.H.Raven
Updated · Sources · How we source care data
Camissonia benitensis is a species of evening primrose known by the common names San Benito suncup and San Benito evening primrose. It is endemic to the Diablo Range of the South Coast Ranges of California, where its range includes far southern San Benito County, far western Fresno County, and far eastern Monterey County.
Every 7–14 days
Full sun
50–85°F
30–60%
At a glance
How do you care for Benitoites Sun Cup?
Plant Benitoites Sun Cup in full sun (USDA zones 12a) and water a young shrub every 7–14 days until it is established. It tolerates temperatures of 50–85°F (10–29°C). Fertilize it every 6 months during the growing season.
Where Is the Benitoites Sun Cup Native To?
What Is the Benitoites Sun Cup?
Benitoites Sun Cup (Camissonia benitensis) belongs to the Onagraceae family within the Camissonia genus. Benitoites Sun Cup is native to the Diablo Range of the South Coast Ranges of California. Benitoites Sun Cup is also known as Benitoites Evening Primrose.
Benitoites Sun Cup displays a low rosette, spreading growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Benitoites Sun Cup produces bright yellow cup-shaped flowers.
Leaf size: approximately 2 inches.
How Often Should You Water a Benitoites Sun Cup?
Water a young or newly planted Benitoites Sun Cup every 7–14 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 7–14 days
Until established; then in dry spells
What Light Does the Benitoites Sun Cup Need?
Benitoites Sun Cup thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Benitoites Sun Cup Prefer?
Camissonia benitensis tolerates temperatures of 50–85°F. Benitoites Sun Cup prefers humidity levels of 30–60%.
Temperature
50–85°F
Humidity
30–60%
What Soil Mix Works Best for a Benitoites Sun Cup?
Well-draining sandy soil with some organic matter. Good drainage is essential for Benitoites Sun Cup to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Benitoites Sun Cup?
Feed Benitoites Sun Cup 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 Benitoites Sun Cup?
Choose a spot with full sun and well-draining sandy soil with some organic matter. Avoid low spots where water collects after rain.
Benitoites Sun Cup is suited to USDA Zone 12a.
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 Benitoites Sun Cup?
Benitoites Sun Cup 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 Benitoites Sun Cup?
Prune Benitoites Sun Cup 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 Benitoites Sun Cup in Winter?
Benitoites Sun Cup is frost-tender (hardy to USDA zone 12). 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 Benitoites Sun Cup?
Benitoites Sun Cup can be propagated through seeds. Similar propagation techniques also apply to baird's evening primrose plant care, which shares the same genus.
Is the Benitoites Sun Cup Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Benitoites Sun Cup, 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 Benitoites Sun Cup?
Benitoites Sun Cup is susceptible to aphids, 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 Benitoites Sun Cup Need?
Benitoites Sun Cup grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Benitoites Sun Cup is native to the Diablo Range of the South Coast Ranges of California. In cooler regions, grow Benitoites Sun Cup as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Benitoites Sun Cup 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 Camissonia genus — compare its care with other Camissonia species on PlantoScan.
Camissonia is part of the Onagraceae plant family — browse all Onagraceae genera and species.
Benitoites Sun Cup thrives in bright light and direct sun — see other bright-light plants.
More Camissonia Species
Other Camissonia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Camissonia benitensis P.H.Raven, family Onagraceae (first published in Contr. U.S. Natl. Herb. 37: 332 (1969)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Benitoites Sun Cup, 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.
