Late daffodils, tulips, alliums, spiderwort, flowering quince will be in bloom then if we have a cool spring. Foxgloves, irises, some lilies, spiderwort, glads, calla lilies, will be in bloom with a normal to warm spring. That's the trouble with growing in the ground for a wedding; you can't predict whether the weather will cooperate for your date. And then a late minute rain storm could take out all of your flower petals.

You might be better off growing annuals in pots that you then place around the site with a choice of decoration to cover the pots from sinking the pots into the ground to mulch around them in an assortment of colors to putting them on risers and draping colored sheets around them. If you think annuals and forced bulbs in pots, the sky is the limit from daffs, tulips, begonia, calendula, zinnias, marigolds, allysum, baby's breath, statice, Dill for greenery. You can always start under lights what wouldn't bloom ordinarily in time and wintersow the rest.

The pots also give you flexibility for arranging the site too.