Daffodils are the birthday flower for those born in March and are also associated with Easter and the Spring Equinox. They were, of course, made famous in the poem by William Wordsworth that goes:
"I wandered lonely as a cloudMagically, they are one of many spring flowers - like the crocus - associated with love, luck, fertility and rebirth.
That floats on high o'er vales and hills,
When all at once I saw a crowd,
A host, of golden daffodils;
Beside the lake, beneath the trees,
Fluttering and dancing in the breeze."
According to Cunningham's Encyclopaedia of Magical Herbs, daffodils are perfect to put on an altar when casting love spells. Placed in a bedroom, they are supposed to increase fertility and, if worn next to the heart, they will attract good luck.
As an added precaution, avoid treading on daffodils when you are out and about because gardening folklore says trampling them will bring bad luck, whereas leaving them alone brings good luck. You should never pick wildflowers without permission of the land's owner anyway, but this is an added reason to leave flowers growing for everyone to enjoy.
In Wales, an old saying is that he who sees the first daffodil of the spring will find more gold than silver in the year ahead. An early daffodil is, at least, a more likely thing to find than the pot of gold at the end of the rainbow...
Encyclopaedia of Magical Herbs (Llewellyn's Sourcebook Series)