Silybum marianum
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Silybum marianum

blessed milk thistle
holy thistle

  family asteraceae 
  genus silybum 

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Identification
Genus  Silybum Species  marianum Variety  Cultivar  Common names  blessed milk thistle   holy thistle Family  ASTERACEAE Specimen number  S11415 Data source  BtrflyCa p55;BtrflyCa p71;BtrflyCa p75;HtZn p169;Xeri p278
 
Life cycle
Life form  Terrestrial Life cycle  Annual Life span  1 year Annual cycle  Not applicable Stature  Herb Growth form  Not applicable Growth habit  Various Overall height  4' Overall spread   
 
Climate
Sunshine  Various Water  Moist Optimal soil texture  Various Acceptable soil pH  Neutral USDA hardiness  USDA zones 07a-09b AHS heat zones  Heat zones 05-01 Sunset climate zones  Not classified
 
Garden
Suitable for gardens  yes Nursery  Unknown Compost  no Size at acquisition  Unknown Garden location  Unknown Garden notes  It tends to become weedy. Silybum marianum can survive cold winter nights that go as low as 0� Fahrenheit. Blessed milk thistle (also known as holy thistle) can tolerate as many as 45 summer days where the temperature exceeds 86� Fahrenheit. It does well in moist soils.
 
Special qualities
Tolerates drought  no Tolerates high humidity  no Tolerates seaside conditions  no Insect resistant  no Disease resistant  no Deer resistant  no Best uses    Symbiosis  Phyciodes mylitta (mylitta crescent butterfly);Vanessa virginiensis (American lady butterfly);Vanessa cardui (painted lady butterfly) Attracts butterflies  no Attracts hummingbirds  no Autumn foliage  no Colorful berries  no Desirable qualities    Other interest    Other interest color  Other interest period   
 
Adverse factors
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  Weedy
 
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 
 
Traditional uses
Parts used  Traditional uses  Contemporary uses  Fragrance  Fragrance parts  Fragrance intensity    Fragrance category    Dye parts  Dye color 
 
Cultivation
Propagule  Various Pollination method    Planting style    Crop spacing    Row spacing    Cold frame  Planting period    Harvesting period    Frost tolerance    Heat requirement  Cool Fertilizer  Typical Time to harvest 
 
Nutrition
Is edible  no Culinary uses  Nutritional value  Edible parts  Description of edible parts Flavor / texture 
 
Horticulture
Horticulture notes  It does not necessarily require warm days for good production.
 
Herbarium
Tag needs printing  no Collection notes  Silybum marianum has an annual life cycle. Leaves: Blessed milk thistle (locally known in some parts as holy thistle) has spiny, glossy leaves. Flowers: This plant has globe shaped flowers surrounded by prickly bracts. Most often the blossoms occur in either violet or pink.

Page 4438 of 4998

Last reviewed November 01, 2004   

 

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