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Sea Mayweed

Tripleurospermum maritimum

Months

Season

Colour

Close up of a Sea Mayweed clinging to a coastal wall
Sea Mayweed pokes out of the rocks on a beach in Cornwall

How to spot

Sea Mayweed is very similar to it’s relative the Scentless Mayweed. One way to spot the difference is that the Sea Mayweed has shorter and thicker leaves that are quite succulent.

It belongs to the Daisy family and, like it’s relative is a composite, which means the ‘flower’ head that you see is actually made up of many different tiny flowers. Just like the Daisy, these consist of white ray florets and then yellow disc florets in the centre.

Sea Mayweed is a perennial plant that grows up to 60cm high with 4cm flowering heads.

Where to spot

As the name suggests, this is a coastal plant that loves to be close to the sea. You can find it all around the UK, on cliffs, sea walls and beaches as well as waste ground that is near the ocean.

 

A close up of a Sea Mayweed flower head with white petals and a large yellow centre, in the background you can see a mass of succulent style leaves

Things you might not know

Sea Mayweed belongs to the Asteraceae family, which is the largest plant family in the world and contains species ranging from the Common Daisy Bellis perennis to the Lettuce and from Sunflowers Helianthus, to Artichokes!

Other Species

Bluebell
Bluebell close-up.

Bluebell

Hyacinthoides non-scripta

Bugle
A close up of a blue bugle plant.

Bugle

Ajuga reptans

Cowslip
Cowslip Close Up.

Cowslip

Primula Veris