Daffodil
Avoid taking a single flower into the house as it will bring bad luck - always have a bunch to ensure happiness. In Wales finding the first daffodil of Spring is expected to bring more gold than silver to your life and home during the following 12 months.
See also Mystical-WWW Easter : Shrove Tuesday

Daisy
This flower was an essential part of Midsummer celebrations. Whilst it was considered lucky to step on the first daisy of the year, young children were strictly told to avoid it as should it be uprooted the child would grow-up stunted in height. Any young animal that ate it would also come to harm (although in what way it is not known). You can still see young girls occasionally picking daisies and counting the number of petals. By doing so she would be able to find out if her male friend loved her or not by alternating 'he loves me, he loves me not' for each petal pulled out. By grabbing a whole bunch of daisies with the eyes shut the girl could then count how many flowers had been picked. The number reflected how many years she would have to wait before she would marry.

Dandelions
In English country folklore this flower is seen as a love omen (although a lot of gardeners also view it as an unwanted weed as it spreads so quickly). If the flower has bloomed and you are left with just the dandelion clock of fluffy seed heads, counting the number of seeds left after you have blown on it will indicate how many years you will have to wait until your wedding day.

Dill
Said to be used heavily in the Middle Ages in witchcraft and magic spells although it was also known for providing a good night's sleep if taken in tea just before bedtime. It has fine feathery green leaves and tiny yellow flowers. It can be used to sweeten the breath.