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Spear Thistle in the GardenTags plant encyclopedia

Cirsium vulgare

 

Spear Thistle

The Spear thistle is a biennial. It has spined grey-green leaves with large pink-purple flowers. The flowers are a rich nectar source for pollinating insects. It is also the national flower of Scotland.

Contributed by @richard.spicer.7906

 
plant Features
  • Spear Thistle likes full sun to partial shade

    Full sun to partial shade

  • Spear Thistle likes occasional watering

    Occasional watering

  • Spear Thistle is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Spear Thistle likes moist and free draining

    Moist and free draining

 
plant information

Common name

Spear Thistle

Latin name

Cirsium vulgare

type

Biennial

family

Asteraceae

ph

5.0 - 7.0 Acid - Neutral

  • Light

    Spear Thistle likes full sun to partial shade

    Full sun to partial shade

  • Frost

    Spear Thistle is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Soil

    Spear Thistle likes moist and free draining

    Moist and free draining

  • Water

    Spear Thistle likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Spear Thistle is 0.30meters x 1.00meters 0.30 M 1.00 M

Cirsium vulgare

The Spear thistle is a biennial. It has spined grey-green leaves with large pink-purple flowers. The flowers are a rich nectar source for pollinating insects. It is also the national flower of Scotland.


Flowering Season

From Late Spring TO Late Summer

Flowers throughout the summer in the UK

 

Planting

From Late Winter TO Early Spring

Care should be taken when planting as it is an invasive species thus it is best to restrict root growth from spreading. It has been designated an "injurious weed" in the UK.

 
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