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Bog Asphodel Narthecium ossifragum 

 
 
Attracts BeesBees are attracted to this plant
Perennial Life CyclePerennial life cycle
Star-Shaped FlowersStar-shaped flowers
Yellow FlowersYellow flowers
6 Petals6 petals
Jul-Aug Flowering
period
Narrow LeavesNarrow leaves
Smooth-Edged LeavesSmooth-edged leaves
Round StemRound stem
Fibrous RootsFibrous roots
40cmMaximum height
 
 
  Main image of Bog Asphodel

© 2020-2025 Adrian Briggs

 

Bog Asphodel is a native perennial plant of the UK, typically found growing in bogs, wet heath and wetland, to a mature height of up to 40cm.

Although having some passing similarity to ashodels, Bog Asphodel is not a true asphodel (or a member of the same family). Bog Asphodel commonly grows in full sun, amongst grasses and other plants, on wet acidic ground. It has iris-like, narrow, flat leaves and produces elevated flower spikes which flower from the bottom upwards. The flower petals open flat to reveal six distinctive stamens with 'bottle-brush' filaments and angled orange anthers.

Botanic classification and naming: Bog Asphodel is a member of the Asphodel (Nartheciaceae) family. The genus name 'Narthecium' identifies the plant as a Bog Asphodel and its species name 'ossifragum' means 'bone-breaking plant'.

Concerns: Bog Asphodel is toxic to cattle and sheep.

Benefits: Food plant for caterpillars of the Shoulder-Striped Clover moth.

Benefits to wildlife are also indicated with orange icons in the plant profile bar at the top.

 

 
Flower of Bog Asphodel

© 2021 Adrian Briggs

 

Flowers:
Bog Asphodel usually flowers between July and August.

Flower colour:

Flower Colour Yellow

Yellow

Flower shape:

Flower Shape  Star

Star

Petals:

Petal Number =  6

6

Leaf of Bog Asphodel

© 2021 Adrian Briggs

 

Leaves:

Leaf Shape:

Leaf Shape is Narrow

Narrow

Leaf Margins:

Leaf Margin is smooth

smooth

Stem of Bog Asphodel

© 2021 Adrian Briggs

 

Stem and Roots:

Stem shape:

Stem Shape is Round

Round

Root type:

Root Type is Fibrous

Fibrous