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Grindelia robusta - Nutt.
Common Name Great Valley Gumweed
Family Asteraceae or Compositae
USDA hardiness 6-9
Known Hazards None known
Habitats By the coast[21] in sunny well-drained situations[200]. Thrives in dry areas and salty plains[7].
Range South-western N. America.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Fully Hardy Well drained soil Moist Soil Full sun


Grindelia robusta Great Valley Gumweed

Grindelia robusta Great Valley Gumweed
Physical Characteristics
 icon of manicon of flower
Grindelia robusta is a PERENNIAL growing to 0.6 m (2ft).
It is hardy to zone (UK) 7. It is in flower from May to September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects.Suitable for: light (sandy) and medium (loamy) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: acid, neutral and basic (alkaline) soils and can grow in saline soils.
It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought.


 Cultivated Beds;
Edible Uses
Edible Parts: Leaves.
Edible Uses:

Leaves - raw[257].
Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

Antispasmodic;  Blood purifier;  Demulcent;  Expectorant;  Parasiticide;  Sedative;  Stomachic.

The leaves and flowering tops are antiphlogistic, antispasmodic, balsamic, demulcent, expectorant, sedative, stomachic and a vascular tonic[4, 7, 21, 46, 61, 207, 213]. Blood purifier[4]. The plant is applied externally as a compress on inflamed or irritated areas of the skin[7, 257]. Used internally, it slows down the heartbeat and reduces the stimulation of the nerve endings in the air passages that causes coughing - it is therefore extremely effective as a calming agent in the treatment of asthma[7]. The fluid extract is prepared by placing the freshly gathered leaves and flowers in a small quantity of simmering water for about 15 minutes[213]. The plant is used to treat people affected by poison-ivy[213].
Other Uses
Dye;  Hair;  Parasiticide.

Yellow and green dyes are obtained from the flowering heads and pods[168]. Aromatic. A decoction of the roots has been used as a hair shampoo to kill lice[257].
Cultivation details
Succeeds in any well-drained soil in full sun[200]. Does well on dry sandy banks and in poor soils[200]. Plants tend to concentrate selenium in the leaves and stems, this is especially noticeable on soils that are relatively rich in that element[21]. Some authorities class this species as a synonym of G. camporum.
Seed - sow autumn or spring in a cool greenhouse and only just cover the seed. Prick out the plants into individual pots when they are large enough to handle and plant them out into their permanent positions in early summer.

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Other Names
Found In
Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status
IUCN Red List of Threatened Plants Status :
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Grindelia camporumGumplant, Great Valley gumweed, Bract gumweed03
Grindelia humilisHairy Gumweed02
Grindelia lanceolataRosin Weed, Narrowleaf gumweed, Texan gumweed13
Grindelia squarrosaRosin Weed, Curlycup gumweed23
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Botanical References
Links / References
For a list of references used on this page please go here
Readers comment
Elizabeth H.
Mon Feb 6 2006
you guys are very discripted but need to have more websites of this plant.
Elizabeth H.
mostafa younis Sat Apr 29 2006
there is no side effects
Elizabeth H.
clive woods Mon May 7 2007
I would like to try a decoction of this plant to reduce lung inflammation is it available in the uk
Elizabeth H.
Kevin Tue Jun 30 2009
Thanks for the info. I found this site useful as I was researching Grindelia Robusta as an active ingredient in a commercial poison ivy scrub.

Racedaynutrition.com Poison Ivy remedy review

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Subject : Grindelia robusta  

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