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Hogweed in the GardenTags plant encyclopedia

Heracleum sphondylium

 

Hogweed

Heracleum sphondylium, commonly known as hogweed is a herbaceous perennial or biennial plant which reaches a maximum height of 2m. It has large red rhizomatous roots producing a hollow stem with bristly hairs. The leaves can reach 50 cm of length. This plant has pinkish or white flowers arranged in large umbels of up to 20 cm in diameter, which appear between mid to late summer.

Contributed by @chesham

 
plant Features
  • Hogweed likes full sun to partial shade

    Full sun to partial shade

  • Hogweed likes occasional watering

    Occasional watering

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

    Full Frost Hardy: 5F (-15°C)

  • Hogweed likes moist and free draining

    Moist and free draining

 
plant information

Common name

Hogweed

Latin name

Heracleum sphondylium

type

Herbaceous Perennials

family

Apiaceae

ph

5.0 - 7.0 Acid - Neutral

  • Light

    Hogweed likes full sun to partial shade

    Full sun to partial shade

  • Frost

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

    Full Frost Hardy: 5F (-15°C)

  • Soil

    Hogweed likes moist and free draining

    Moist and free draining

  • Water

    Hogweed likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant

full grown dimensions

The size of a fully grown Hogweed is 1.80meters x 2.00meters 1.80 M 2.00 M

Heracleum sphondylium

Heracleum sphondylium, commonly known as hogweed is a herbaceous perennial or biennial plant which reaches a maximum height of 2m. It has large red rhizomatous roots producing a hollow stem with bristly hairs. The leaves can reach 50 cm of length. This plant has pinkish or white flowers arranged in large umbels of up to 20 cm in diameter, which appear between mid to late summer.


Planting

From Early Spring TO Early Spring

Young plants can be obtained by division of mature plants or can be grown from seed taken from plants after the flowers have faded.

 
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