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| Identification |
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Genus
Cirsium
Species
arizonicum
Variety
Cultivar
Common names
Arizona thistle
Family
COMPOSITAE
Specimen number
S10173
Data source
HumGrdn p73
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| Life cycle |
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Life form
Terrestrial
Life cycle
Biennial
Life span
2 years
Annual cycle
Not applicable
Stature
Flower
Growth form
Not applicable
Growth habit
Various
Overall height
2'
Overall spread
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| Climate |
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Sunshine
Full sun
Water
Well drained
Optimal soil texture
Various
Acceptable soil pH
Various
USDA hardiness
USDA zones 06a-08b
AHS heat zones
Not classified
Sunset climate zones
Not classified
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| Garden |
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Suitable for gardens
no
Nursery
Unknown
Compost
no
Size at acquisition
Unknown
Garden location
Unknown
Garden notes
Cirsium arizonicum has a good supply of nectar that hummingbirds feed on. The prickly nature of this plant may not agree with everyone. Arizona thistle can survive cold winters where the average annual low is -10� Fahrenheit. Full sun is best for growing this plant. It usually does best in well drained soils.
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| Special qualities |
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Tolerates drought
no
Tolerates high humidity
no
Tolerates seaside conditions
no
Insect resistant
no
Disease resistant
no
Deer resistant
no
Best uses
Symbiosis
Attracts butterflies
no
Attracts hummingbirds
yes
Autumn foliage
no
Colorful berries
no
Desirable qualities
Other interest
Other interest color
Other interest period
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| Adverse factors |
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Common pests
Poisonous parts
Poisonous indications
Internal poison
no
Dermatologic poison
no
Livestock poison
no
Mechanical injury
no
Hay fever pollen
Hay fever season
Adverse qualities
Prickly
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| Herbal medicine |
|
Medicinal properties
Medicinal parts
Has medicinal uses
no
Do not self-administer
no
Do no use if pregnant
no
Legally restricted
no
Toxicity precautions
Medicinal notes
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| Traditional uses |
|
Parts used
Traditional uses
Contemporary uses
Fragrance
Fragrance parts
Fragrance intensity
Fragrance category
Dye parts
Dye color
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| Cultivation |
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Propagule
Various
Pollination method
Planting style
Crop spacing
Row spacing
Cold frame
Planting period
Harvesting period
Frost tolerance
Heat requirement
Fertilizer
Typical
Time to harvest
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| Nutrition |
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Is edible
no
Culinary uses
Nutritional value
Edible parts
Description of edible parts
Flavor / texture
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| Horticulture |
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Horticulture notes
Cirsium arizonicum is considered to have originated from Utah and Arizona.
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| Herbarium |
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Tag needs printing
no
Collection notes
Cirsium arizonicum is a biennial. Blooms appear for a 6 month period from May through October. The blossoms are usually a red color.
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Page 1133 of 4998
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