The most common option is to get a professional flower shop involved in creating the bouquets and other floral arrangements for both the wedding and the reception but that is not etched in stone, or dirt!
While it was traditionally the groom’s duty to order and purchase the flowers (they were a gift to his bride) this has, quite sensibly, been taken out of his hands today!
Obviously, types of flowers, arrangements and colours will be dictated by the general wedding theme and not least to reflect and draw attention to the bride and her ensemble. The meaning of flowers too is an issue.
The harmonization of the flowers to the bride’s dress (and that of her bridesmaids) is paramount and flowers are often the element that pulls the various design and visual aspects of the wedding together.
As a general rule white or cream coloured flowers are the most popular (if it’s a white wedding!). White roses. lilies of the valley and the like are old favourites.
Ancient traditions also can mean that wild flowers such as white heather and orange blossom are incorporated into the bouquets, bridal head-dress and arrangements.
In the reception venue it’s important that the free-standing flower arrangements be very tall (or sit on plinths or pillars) so that they can be see by the guests as they are standing and knocking back the bubbly.
There is nothing wrong with the ushers snatching up all the church flowers after the service (maybe while exterior photography is going on) and swiftly transport them to the wedding reception venue prior to the arrival of the happy couple and their guests.
Flowers for any wedding are all about what message the happy couple is trying to convey to the family and guests both. All colors and arrangements have their own suggestive little nuances. We all know the emotional lift that flowers can give both visually and with their fragrance (is that olfactory?)

The meaning of flowers - what do they mean?


Almond flowers -- Hope
 Aster -- Symbol of love
 Balm -- Sympathy
 Bergamot -- Irresistible
 Bluebell -- Constancy
 Borage -- Courage
 Broom -- Humility
 Campanula -- Gratitude
 China rose -- Beauty always new
 Chrysanthemum -- Love
 Clover, four leaved -- "Be mine"
 Coreopsis -- Love at first sight
 Cuckoo pint -- Ardor
 Daffodil -- Regard
 Fern -- Sincerity
 Forget-Me-Not -- True love
 Furze or Gorse -- Enduring affection
 Gardenia -- Ecstasy
 Gentian -- Loveliness
 Geranium -- "You are childish"
 Hare bell -- Grief
 Heartsease -- "I am always thinking of you"
 Honeysuckle -- Bonds of love
 Heather -- Admiration
 Ivy -- Fidelity, friendship, marriage
 Jasmine -- Grace
 Jonquil -- "I hope for return of affection"
 Lavender -- Luck, devotion
 Lemon Balm -- Sympathy
 Lilac -- First love
 Lily -- Purity, modesty
 Lily of the Valley -- Purity, the return of happiness
 Lily, Calla -- Beauty
 Marjoram -- Kindness, courtesy
 Myrtle -- Fidelity
 Oregano -- Joy
 Orchid -- Love, beauty, refinement
 Pansy -- Loving thoughts
 Periwinkle -- Happy memory
 Phlox -- Agreement
 Poppy, red -- Consolation
 Primrose -- I can't live without you
 Rose, cabbage -- Ambassador of love
 Rose, red -- Love
 Rose, pink -- Grace, beauty
 Rose, yellow -- Friendship
 Rosemary -- Remembrance, constancy
 Sage -- Gratitude, domestic virtue
 Snowdrop -- Hope
 Star of Bethlehem -- Purity
 Sweet Pea -- Departure, tender memory
 Sweet William -- Gallantry
 Tuberose -- Voluptuousness
 Tulip, red -- My perfect lover, Reclamation of love
 Violet -- Loyalty, modesty, humility
 Violet, blue -- Faithfulness
 Wheat -- Riches of the continuation of life
 Wallflower -- Fidelity
So for wedding purposes: Orchids combined with Myrtle and Gardenias might be cool - throw in a Wallflower too! Work out your own floral combination....