Photo: Thayne TuasonCC BY-SA 4.0via Wikimedia Commonsresized / cropped
Aster greenei Plant Care
Macronema greenei A.Gray
Updated · Sources · How we source care data
Ericameria greenei is a species of flowering shrub in the family Asteraceae known by the common name Greene's goldenbush. It is native to the mountains of the western United States in Washington, Idaho, Oregon, and the northern California as far south as Lake and Tuolumne Counties.
Every 7–10 days
Full sun to partial shade
50–75°F
40–60%
At a glance
How do you care for Aster greenei?
Water Aster greenei 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 50–75°F (10–24°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
Where Is the Aster greenei Native To?
What Is the Aster greenei?
Aster greenei (Macronema greenei) belongs to the Asteraceae family within the Macronema genus. Aster greenei is native to the mountains of the western United States in Washington, Idaho, Oregon, and the northern California as far south as Lake and Tuolumne Counties. Aster greenei is also known as Bigelowia greenei, Haplopappus bloomeri var. greenei, Haplopappus greenei.
Aster greenei displays a compact, clumping perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 1.5 ft. Aster greenei produces small daisy-like flowers in various colors.
Leaf size: approximately 4 inches.
How Often Should You Water a Aster greenei?
Macronema greenei 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 Aster greenei Need?
Aster greenei thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Aster greenei Prefer?
Macronema greenei grows best at temperatures of 50–75°F. Aster greenei prefers humidity levels of 40–60%.
Temperature
50–75°F
Humidity
40–60%
What Soil Mix Works Best for a Aster greenei?
Well-draining sandy loam with added organic matter for Macronema. Good drainage is essential for Aster greenei to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Aster greenei?
Feed Aster greenei 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 Aster greenei?
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 Aster greenei?
Aster greenei can be propagated through seeds, division of offsets.
Is the Aster greenei Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Aster greenei, 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 Aster greenei?
Aster greenei is susceptible to aphids, spider mites, whiteflies. 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 Aster greenei Need?
Aster greenei grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Aster greenei is native to the mountains of the western United States in Washington, Idaho, Oregon, and the northern California as far south as Lake and Tuolumne Counties. In cooler regions, grow Aster greenei as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Aster greenei 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 Macronema genus (family Asteraceae) — search all Macronema species in the plant lookup.
Aster greenei 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: Macronema greenei A.Gray, family Asteraceae (first published in Erythea 2: 73. 1894) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Aster greenei, 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: Thayne Tuason, CC BY-SA 4.0, 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.
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