Just going back to the first post:
I will pass on my paternal grandmothers pearl of wisdom. Girls can only get pregnant when gorse is in bloom.
Your granny was right, gorse can bloom all year round. There’s plenty of the stuff on the coast around here, and I’ve seen it in full bloom in the middle of the winter.
From https://www.wildlifetrusts.org/ :
It generally flowers from January to June (although it may flower sporadically throughout the year), while its close relatives – Western gorse and dwarf gorse – flower from July to November. Common gorse is a large shrub and a member of the pea family.
I didn’t know it was a pea!