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Alexanders Smyrnium olusatrum 

 
 
Wildlife GardenWildlife garden plant
Attracts BeesBees are attracted to this plant
Attracts HoverfliesHoverflies are attracted to this plant
Biennial Life CycleBiennial life cycle
Umbrella-Shaped FlowersUmbrella-shaped flowers
Cream FlowersCream flowers
5 Petals5 petals
Mar-Jun Flowering
period
Trifoliate LeavesTrifoliate leaves
Forwardly-Toothed LeavesForwardly-toothed leaves
Ribbed StemRibbed stem
Tap RootTap root
150cmMaximum height
 
 
  Main image of Alexanders

© 2020-2025 Adrian Briggs

 

Alexanders is a non-native biennial plant of the UK, typically found growing in waste ground, hedgerows and coastal areas, to a mature height of up to 150cm.

Alexanders is named after the Egyptian city of Alexandria, where in ancient times it was commonly used in cooking. Alexanders is believed to have been introduced into the UK by the Romans as a food source. The leaves are bitter and parsely-like in flavour.

Botanic classification and naming: Alexanders is a member of the Carrot (Apiaceae) family. The genus name 'Smyrnium' identifies the plant as a Alexanders and its species name 'olusatrum' means 'black herb (seeds)'.

Concerns: Alexanders has dense foliage and grows vigorously. Unchecked it may exclude other plants.

Benefits: Alexanders is pollinated by bees and hoverflies.

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

 

 
Flower of Alexanders

© 2021 Adrian Briggs

 

Flowers:
Alexanders usually flowers between March and June.

Flower colour:

Flower Colour Cream

Cream

Flower shape:

Flower Shape  Umbrella

Umbrella

Petals:

Petal Number =  5

5

Leaf of Alexanders

© 2021 Adrian Briggs

 

Leaves:

Leaf Shape:

Leaf Shape is Trifoliate

Trifoliate

Or:

Alternative Leaf Shape is Pinnate

Pinnate

Leaf Margins:

Leaf Margin is forwardly-toothed

forwardly-toothed

Stem of Alexanders

© 2021 Adrian Briggs

 

Stem and Roots:

Stem shape:

Stem Shape is Ribbed

Ribbed

Root type:

Root Type is Tap

Tap