This is the only Tansy (Tanacetum vulgare) plant I know of and it’s in an odd location, growing as it does on a grassy slope on the Cardiff Bay Barrage. Who knows how it got there but it seems to be thriving and its golden-yellow button-like flowers make for a stunning display of summertime colour.

Those flowers also provide welcome food for insects at a time when many other plants are shrivelling due to the heat and lack of rain. (In case you’re wondering, the bee is a Colletes species but cannot be positively identified without closer examination – I did try asking an expert.)

I always enjoy reading the interesting snippets of information my copy of Flora Britannica provides about our various wildflowers. This is what Richard Mabey writes about Tansy:

Tansy’s leaves are pungent and bitter, and at one time they were eaten at Eastertide, to kill off the ‘phlegm and worms’ which the Lenten fish diet gave rise to. They were mixed with eggs, milk and flour, presumably to make them more palatable, and from the fifteenth to nineteenth centuries, a ‘tansye’ was a generic term for any omelette or pancake-like dish flavoured with bitter herbs.