Snowdrops bloom in the UK between January & March. Plant bulbs in late April and May – but I am not an expert, so please consult a reputable source, such as the RHS.
‘The snowdrop, in purest white arraie,
First rears her hedde on Candlemas daie.
While the crocus hastens to the shrine
Of primrose lone on St Valentine.’
An excerpt from an Old English floral calendar dating back to the 19th century.
Candlemas day in 2021 was on 2 February. Candlemas is when the Virgin Mary, according to Jewish law, went to the Temple in Jerusalem both to be purified 40 days after the birth of her son, and to present her firstborn Jesus, to God