Larry Stoter wrote:
In which case, try to check the source of the seed. Some packs of
'native' wildflower seeds actually originate from outside the UK.

Best value I ever bought was some packs of "wildflower" seeds from
Buckfast Abbey gift shop in Devon. About 4 oz of mixed seeds for
£1.99. I had trouble identifying some of the things that came up, but
cornflower and yellow rattle dominated one packet.