
Photo: Jane S. Richardson ( talk · contribs )CC BY 3.0via Wikimedia Commonsresized / cropped
Hulsea caespitosa Plant Care
Hulsea algida A.Gray
Updated · Sources · How we source care data
Hulsea algida is a species of flowering plant in the daisy family, known by the common name Pacific hulsea or alpine gold. It is native to the western United States.
Every 7–10 days
Full sun
50–80°F
40–60%
At a glance
How do you care for Hulsea caespitosa?
Plant Hulsea caespitosa in full sun (USDA zones 12a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 50–80°F (10–27°C). Fertilize it every 6 months during the growing season.
Where Is the Hulsea caespitosa Native To?
What Is the Hulsea caespitosa?
Hulsea caespitosa (Hulsea algida) belongs to the Asteraceae family within the Hulsea genus. Hulsea caespitosa is native to the western United States. Hulsea caespitosa is also known as Hulsea carnosa, Hulsea nevadensis.
Hulsea caespitosa displays a low rosette, clumping growth habit, reaching up to 0.5 ft tall with a spread of approximately 0.5 ft. Hulsea caespitosa produces small yellow daisy-like flowers in clusters.
Leaf size: approximately 2 inches.
How Often Should You Water a Hulsea caespitosa?
Water a young or newly planted Hulsea caespitosa 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 Hulsea caespitosa Need?
Hulsea caespitosa thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Hulsea caespitosa Prefer?
Hulsea algida tolerates temperatures of 50–80°F. Hulsea caespitosa prefers humidity levels of 40–60%.
Temperature
50–80°F
Humidity
40–60%
What Soil Mix Works Best for a Hulsea caespitosa?
Well-draining sandy soil with added organic matter for nutrients. Good drainage is essential for Hulsea caespitosa to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Hulsea caespitosa?
Feed Hulsea caespitosa 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 Hulsea caespitosa?
Choose a spot with full sun and well-draining sandy soil with added organic matter for nutrients. Avoid low spots where water collects after rain.
Hulsea caespitosa 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 Hulsea caespitosa?
Hulsea caespitosa can spread to about 1 ft (0.2 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.2 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 Hulsea caespitosa?
Prune Hulsea caespitosa 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 Hulsea caespitosa in Winter?
Hulsea caespitosa 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 Hulsea caespitosa?
Hulsea caespitosa can be propagated through seeds.
Is the Hulsea caespitosa Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Hulsea caespitosa, 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 Hulsea caespitosa?
Hulsea caespitosa 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 Hulsea caespitosa Need?
Hulsea caespitosa grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Hulsea caespitosa is native to the western United States. In cooler regions, grow Hulsea caespitosa as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Hulsea caespitosa 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 Hulsea genus — compare its care with other Hulsea species on PlantoScan.
Hulsea is part of the Asteraceae plant family — browse all Asteraceae genera and species.
Hulsea caespitosa 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: Hulsea algida A.Gray, family Asteraceae (first published in Proc. Amer. Acad. Arts vi. (1864-65) 547.) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Hulsea caespitosa, 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: Jane S. Richardson ( talk · contribs ), CC BY 3.0, Wikimedia Commons — original.
- 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.
