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Grindelia humilis - Hook.&Arn.

Common Name Hairy Gumweed
Family Asteraceae or Compositae
USDA hardiness 7-10
Known Hazards None known
Habitats Coastal salt marshes[71].
Range Western N. America.
Edibility Rating    (0 of 5)
Other Uses    (1 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care (info)
Frost Hardy Well drained soil Moist Soil Full sun
Grindelia humilis Hairy Gumweed


Grindelia humilis Hairy Gumweed

 

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Summary


Physical Characteristics

 icon of manicon of flower
Grindelia humilis is a PERENNIAL growing to 1.5 m (5ft).
See above for USDA hardiness. It is hardy to UK zone 8. It is in flower from July to August. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects.
Suitable for: light (sandy) and medium (loamy) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in saline soils.
It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought.

UK Hardiness Map US Hardiness Map

Synonyms

G. cuneifolia

Plant Habitats

 Cultivated Beds;

Edible Uses

None known

References   More on Edible Uses

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.
Expectorant  Homeopathy  Sedative  Skin

The dried leaves and flowering tops are antiasthmatic, expectorant and sedative[4]. The principal use of this herb is in the treatment of bronchial catarrh, especially when there is an asthmatic tendency[4]. The active principle is excreted from the kidneys, and this sometimes produces signs of renal irritation[4]. The plant has been used in the treatment of itching skin eruptions caused by contact with poison oak (Rhus spp.)[257]. A homeopathic remedy is prepared from the leaves and flowering stems[4].

References   More on Medicinal Uses

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Other Uses

Dye

Yellow and green dyes are obtained from the flowering heads and pods. Aromatic.

Special Uses

References   More on Other Uses

Cultivation details

Succeeds in any well-drained soil in full sun[200]. Does well on dry sandy banks and in poor soils[200]. This species is not hardy in the colder areas of the country, it tolerates temperatures down to between -5 and -10°c[200]. There is some confusion over the correct name for this species. The report on medicinal uses in [4] relates to G. cuniefolia, a name that has been used by two authors. G. cuniefolia. non Nutt. is said to be a synonym of G. humilis and so the entry has been made here.

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Fahrenheit:

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Plant Propagation

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.

Other Names

If available other names are mentioned here

Native Range

NORTHERN AMERICA: United States (Oregon, California)

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 NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Grindelia camporumGumplant, Great Valley gumweed, Bract gumweedAnnual/Perennial1.2 7-10  LMNDM031
Grindelia hirsutulaGumweed, Gum PlantPerennial1.0 8-11 FLMNDM033
Grindelia lanceolataRosin Weed, Narrowleaf gumweed, Texan gumweedBiennial/Perennial1.5 4-8  LMNDM131
Grindelia robustaGreat Valley GumweedPerennial0.6 6-9  LMNDM121
Grindelia squarrosaRosin Weed, Curlycup gumweedBiennial/Perennial1.0 3-7  LMNDM231

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

Expert comment

Author

Hook.&Arn.

Botanical References

71200

Links / References

For a list of references used on this page please go here

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Subject : Grindelia humilis  
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