Grindelia robusta — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Grindelia robusta

Grindelia Robusta

Updated · 18 observations
ON THIS PLANT

Grindelia robusta, commonly known as gumweed or rosinweed, is a perennial plant in the Asteraceae family. Native to North America, it thrives in diverse habitats like prairies, meadows, and open woodlands.

This distinctive plant features yellow flowers that bloom from July to September, surrounded by bracts covered in resinous glands, which give gumweed its name. The leaves are similarly endowed with resinous glands, imparting a sticky texture.

For centuries, Native American tribes have utilized Grindelia robusta for its medicinal properties, especially as an herbal remedy for respiratory ailments like asthma and bronchitis due to its expectorant qualities.

Beyond its medicinal uses, Grindelia robusta holds ecological importance, providing food and habitat for various pollinators, including bees and butterflies.

In summary, Grindelia robusta stands out as a plant of unique attributes, significant both ecologically and culturally, thanks to its traditional medicinal uses by Native American tribes.

A note from PlantMom

Hairy gumplant is fairly disease-resistant and generally not prone to illness. Nonetheless, it can be affected by pests and diseases present in its surroundings. Such infections are typically not severe. In terms of care, this plant requires a moderate level of maintenance. It should be pruned regularly to preserve a good appearance and support healthy growth. Fertilizing can also help encourage flowering. Hairy gumplant suits anyone with an outdoor area, such as a garden or patio, and does not demand extensive care experience. It may need more attention when grown indoors.

— PlantMom
CARE GUIDE

How to keep Grindelia Robusta.

Light

Continuous exposure to a lot of sunlight is necessary for the healthy development of hairy gumplant. This is influenced by its native environment which typically experiences a large amount of sunlight, a factor that fundamentally shapes its growth. However, it demonstrates resilience to changes in light conditions as both excessive and insufficient light affect it minimally.

Temperature

The Hairy gumplant is a flora that is indigenous to climates with temperature ranges from 59 to 100 degrees Fahrenheit (15 to 38 °C). It thrives in areas with moderate to warm weather. To promote its best growth, the ambient temperature should be manipulated to mimic its original habitat.

Fertilizer

The optimal period for fertilizing a Hairy gumplant is in the onset of spring, as it comes out of dormancy and commences active development. Fertilization delivers crucial nutrients necessary for its robust growth. Even though the Hairy gumplant has comparatively modest fertilization requirements, yearly fertilization can boost its longevity and foster superior, more durable blooms.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb, Shrub
Life Cycle
Perennial
Genus
Grindelia
Family
Compositae
Hardiness Zone
8-11
Mature Height
30 cm to 91 cm
Mature Spread
91 cm
Leaf Color
Green
Leaf Type
Evergreen
Flower Color
Yellow
Flower Size
5.08 cm to 7.62 cm
Bloom Time
Summer
Planting Time
Spring, Summer, Autumn
Harvest Time
Late summer, Early fall, Mid fall
ALSO KNOWN AS

Other names.

en Californian Gumweed en August flower en Gumweed en Shore grindelia
PLATES
Grindelia robusta leaf
PLATE 01 · leaf
Grindelia robusta leaf
PLATE 02 · leaf
Grindelia robusta flower
PLATE 03 · flower
Grindelia robusta flower
PLATE 04 · flower
Grindelia robusta bark
PLATE 05 · bark
Grindelia robusta habit
PLATE 06 · habit
ALSO IN THE LIBRARY

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