Posted: 16/02/2015 at 10:53
Here a photo of mine last year in mid June. first one 18th second 22nd.
There are Sweet Williams, Lupins, Delphiniums, Foxgloves, Aconitum (best not for a wedding!!!) Campanula, Aquilegia, Allium.
There aren't many annuals in bloom this early and if you want the Spring flowers such as Delphiniums, you would need to buy seeds or plants this year for flowering next.
You could try some pansies in pretty pots, grow from seed late this summer ready for next June