Baird's Evening Primrose Plant Care
Camissonia bairdii S.L.Welsh
Updated · Sources · How we source care data
Camissonia bairdii is a plant species endemic to Washington County, Utah. It occurs in clay soil in pinyon-juniper woodlands.
Every 7–14 days
Full sun
50–85°F
30–60%
At a glance
How do you care for Baird's Evening Primrose?
Plant Baird's Evening Primrose 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 Baird's Evening Primrose Native To?
What Is the Baird's Evening Primrose?
Baird's Evening Primrose (Camissonia bairdii) belongs to the Onagraceae family within the Camissonia genus. Baird's Evening Primrose is native to Washington County, Utah.
Baird's Evening Primrose displays a low rosette, spreading growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Baird's Evening Primrose produces bright yellow cup-shaped flowers.
Leaf size: approximately 2 inches.
How Often Should You Water a Baird's Evening Primrose?
Water a young or newly planted Baird's Evening Primrose 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 Baird's Evening Primrose Need?
Baird's Evening Primrose thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Baird's Evening Primrose Prefer?
Camissonia bairdii tolerates temperatures of 50–85°F. Baird's Evening Primrose prefers humidity levels of 30–60%.
Temperature
50–85°F
Humidity
30–60%
What Soil Mix Works Best for a Baird's Evening Primrose?
Well-draining sandy soil with some organic matter. Good drainage is essential for Baird's Evening Primrose to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Baird's Evening Primrose?
Feed Baird's Evening Primrose 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 Baird's Evening Primrose?
Choose a spot with full sun and well-draining sandy soil with some organic matter. Avoid low spots where water collects after rain.
Baird's Evening Primrose 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 Baird's Evening Primrose?
Baird's Evening Primrose 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 Baird's Evening Primrose?
Prune Baird's Evening Primrose 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 Baird's Evening Primrose in Winter?
Baird's Evening Primrose 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 Baird's Evening Primrose?
Baird's Evening Primrose can be propagated through seeds.
Is the Baird's Evening Primrose Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Baird's Evening Primrose, 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 Baird's Evening Primrose?
Baird's Evening Primrose 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 Baird's Evening Primrose Need?
Baird's Evening Primrose grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Baird's Evening Primrose is native to Washington County, Utah. In cooler regions, grow Baird's Evening Primrose as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Baird's Evening Primrose 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.
Baird's Evening Primrose 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: Camissonia bairdii S.L.Welsh, family Onagraceae (first published in Rhodora 95: 408 (1993)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Baird's Evening Primrose, 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.
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